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Georg Cantor

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434:'s public opposition and personal attacks included describing Cantor as a "scientific charlatan", a "renegade" and a "corrupter of youth". Kronecker objected to Cantor's proofs that the algebraic numbers are countable, and that the transcendental numbers are uncountable, results now included in a standard mathematics curriculum. Writing decades after Cantor's death, Wittgenstein lamented that mathematics is "ridden through and through with the pernicious idioms of set theory", which he dismissed as "utter nonsense" that is "laughable" and "wrong". Cantor's recurring bouts of depression from 1884 to the end of his life have been blamed on the hostile attitude of many of his contemporaries, though some have explained these episodes as probable manifestations of a 2005: 1431: 8006: 2200: 1775:
implies that these big classes are not sets, which eliminates the paradoxes since they cannot be members of any class. Von Neumann also used his axiom to prove the well-ordering theorem: Like Cantor, he assumed that the ordinals form a set. The resulting contradiction implies that the class of all ordinals is not a set. Then his axiom provides a one-to-one correspondence between this class and the class of all sets. This correspondence well-orders the class of all sets, which implies the well-ordering theorem. In 1930, Zermelo defined
668:, and he chaired its first meeting in Halle in 1891, where he first introduced his diagonal argument; his reputation was strong enough, despite Kronecker's opposition to his work, to ensure he was elected as the first president of this society. Setting aside the animosity Kronecker had displayed towards him, Cantor invited him to address the meeting, but Kronecker was unable to do so because his wife was dying from injuries sustained in a skiing accident at the time. Georg Cantor was also instrumental in the establishment of the first 2127:, Cantor's differences with Kronecker as a quarrel between two Jews, and Cantor's madness as Romantic despair over his failure to win acceptance for his mathematics. Grattan-Guinness (1971) found that none of these claims were true, but they may be found in many books of the intervening period, owing to the absence of any other narrative. There are other legends, independent of Bell â€“ including one that labels Cantor's father a foundling, shipped to Saint Petersburg by unknown parents. A critique of Bell's book is contained in 8042: 44: 7056: 5769: 271: 1250: 578:
having Cantor as a colleague, perceiving him as a "corrupter of youth" for teaching his ideas to a younger generation of mathematicians. Worse yet, Kronecker, a well-established figure within the mathematical community and Cantor's former professor, disagreed fundamentally with the thrust of Cantor's work ever since he had intentionally delayed the publication of Cantor's first major publication in 1874. Kronecker, now seen as one of the founders of the
1715:. First, he defined two types of multiplicities: consistent multiplicities (sets) and inconsistent multiplicities (absolutely infinite multiplicities). Next he assumed that the ordinals form a set, proved that this leads to a contradiction, and concluded that the ordinals form an inconsistent multiplicity. He used this inconsistent multiplicity to prove the aleph theorem. In 1932, Zermelo criticized the construction in Cantor's proof. 5747: 8030: 8018: 582:, disliked much of Cantor's set theory because it asserted the existence of sets satisfying certain properties, without giving specific examples of sets whose members did indeed satisfy those properties. Whenever Cantor applied for a post in Berlin, he was declined, and the process usually involved Kronecker, so Cantor came to believe that Kronecker's stance would make it impossible for him ever to leave Halle. 5759: 775:. No one had realized that set theory had any nontrivial content. Before Cantor, there were only finite sets (which are easy to understand) and "the infinite" (which was considered a topic for philosophical, rather than mathematical, discussion). By proving that there are (infinitely) many possible sizes for infinite sets, Cantor established that set theory was not trivial, and it needed to be studied. 6004: 1518: 5397: 8054: 2186: 1333:
numbers, Cantor produces a transcendental number. Cantor points out that his constructions prove more â€“ namely, they provide a new proof of Liouville's theorem: Every interval contains infinitely many transcendental numbers. Cantor's next article contains a construction that proves the set of transcendental numbers has the same "power" (see below) as the set of real numbers.
5856:. There is an error in this analysis. It states Cantor's Theorem 1 correctly: Algebraic numbers can be counted. However, it states his Theorem 2 incorrectly: Real numbers cannot be counted. It then says: "Cantor notes that, taken together, Theorems 1 and 2 allow for the redemonstration of the existence of non-algebraic real numbers 
" This existence demonstration is 2172: 1838:
entity, whereas intuitionists hold that mathematical entities cannot be reduced to logical propositions, originating instead in the intuitions of the mind. Secondly, the notion of infinity as an expression of reality is itself disallowed in intuitionism, since the human mind cannot intuitively construct an infinite set. Mathematicians such as
5425: 759:. The public celebration of his 70th birthday was canceled because of the war. In June 1917, he entered a sanatorium for the last time and continually wrote to his wife asking to be allowed to go home. Georg Cantor had a fatal heart attack on January 6, 1918, in the sanatorium where he had spent the last year of his life. 1269:, "Ueber eine Eigenschaft des Inbegriffes aller reellen algebraischen Zahlen" ("On a Property of the Collection of All Real Algebraic Numbers"). This paper was the first to provide a rigorous proof that there was more than one kind of infinity. Previously, all infinite collections had been implicitly assumed to be 3724:, p. 51. Proof of equivalence: If a set is well-ordered, then its cardinality is an aleph since the alephs are the cardinals of well-ordered sets. If a set's cardinality is an aleph, then it can be well-ordered since there is a one-to-one correspondence between it and the well-ordered set defining the aleph. 1869:
thinkers saw the existence of an actual infinity that consisted of something other than God as jeopardizing "God's exclusive claim to supreme infinity". Cantor strongly believed that this view was a misinterpretation of infinity, and was convinced that set theory could help correct this mistake: "...
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is too big to be a set if it can be put into one-to-one correspondence with the class of all sets. He defined a set as a class that is a member of some class and stated the axiom: A class is not a set if and only if there is a one-to-one correspondence between it and the class of all sets. This axiom
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while it was in proof, writing that it was "... about one hundred years too soon." Cantor complied, but then curtailed his relationship and correspondence with Mittag-Leffler, writing to a third party, "Had Mittag-Leffler had his way, I should have to wait until the year 1984, which to me seemed
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at a more prestigious university, in particular at Berlin, at that time the leading German university. However, his work encountered too much opposition for that to be possible. Kronecker, who headed mathematics at Berlin until his death in 1891, became increasingly uncomfortable with the prospect of
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Some mathematicians consider these results to have settled the issue, and, at most, allow that it is possible to examine the formal consequences of CH or of its negation, or of axioms that imply one of those. Others continue to look for "natural" or "plausible" axioms that, when added to ZFC, will
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More often the question has been discussed of whether Georg Cantor was of Jewish origin. About this it is reported in a notice of the Danish genealogical Institute in Copenhagen from the year 1937 concerning his father: "It is hereby testified that Georg Woldemar Cantor, born 1809 or 1814, is not
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The transfinite is increasable in magnitude, while the absolute is unincreasable. For example, an ordinal α is transfinite because it can be increased to α + 1. On the other hand, the ordinals form an absolutely infinite sequence that cannot be increased in magnitude because there are no
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contains a real number not in the sequence. Since every sequence of real numbers can be used to construct a real not in the sequence, the real numbers cannot be written as a sequence â€“ that is, the real numbers are not countable. By applying his construction to the sequence of real algebraic
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demonstrated less than a day later that König's proof had failed, Cantor remained shaken, and momentarily questioning God. Cantor suffered from chronic depression for the rest of his life, for which he was excused from teaching on several occasions and repeatedly confined to various sanatoria. The
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in 1896 (Paul Tannery, Memoires Scientifique 13 Correspondence, Gauthier-Villars, Paris, 1934, p. 306), Cantor states that his paternal grandparents were members of the Sephardic Jewish community of Copenhagen. Specifically, Cantor states in describing his father: "Er ist aber in Kopenhagen
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are required. Intuitionism also rejects the idea that actual infinity is an expression of any sort of reality, but arrive at the decision via a different route than constructivism. Firstly, Cantor's argument rests on logic to prove the existence of transfinite numbers as an actual mathematical
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the transfinite species are just as much at the disposal of the intentions of the Creator and His absolute boundless will as are the finite numbers.". Prominent neo-scholastic German philosopher Constantin Gutberlet was in favor of such theory, holding that it didn't oppose the nature of God.
630:... I don't know when I shall return to the continuation of my scientific work. At the moment I can do absolutely nothing with it, and limit myself to the most necessary duty of my lectures; how much happier I would be to be scientifically active, if only I had the necessary mental freshness. 4104:
The religious dimension which Cantor attributed to his transfinite numbers should not be discounted as an aberration. Nor should it be forgotten or separated from his existence as a mathematician. The theological side of Cantor's set theory, though perhaps irrelevant for understanding its
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Cantor suffered his first known bout of depression in May 1884. Criticism of his work weighed on his mind: every one of the fifty-two letters he wrote to Mittag-Leffler in 1884 mentioned Kronecker. A passage from one of these letters is revealing of the damage to Cantor's self-confidence:
471: 5860:. Theorem 2 stated correctly is: Given a sequence of real numbers, one can determine a real number that is not in the sequence. Taken together, Theorem 1 and this Theorem 2 produce a non-algebraic number. Cantor also used Theorem 2 to prove that the real numbers cannot be counted. See 1710:
Cantor extended his work on the absolute infinite by using it in a proof. Around 1895, he began to regard his well-ordering principle as a theorem and attempted to prove it. In 1899, he sent Dedekind a proof of the equivalent aleph theorem: the cardinality of every infinite set is an
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In 1888, Cantor published his correspondence with several philosophers on the philosophical implications of his set theory. In an extensive attempt to persuade other Christian thinkers and authorities to adopt his views, Cantor had corresponded with Christian philosophers such as
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system are that all mathematical concepts must be devoid of internal contradiction, and that they follow from existing definitions, axioms, and theorems. This belief is summarized in his assertion that "the essence of mathematics is its freedom." These ideas parallel those of
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With a few rare exceptions the entities which are studied and analyzed in mathematics may be regarded as certain particular sets or classes of objects.... As a consequence, many fundamental questions about the nature of mathematics may be reduced to questions about set
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is an inconsistent multiplicity, which is a contradiction. Zermelo criticized Cantor's construction: "the intuition of time is applied here to a process that goes beyond all intuition, and a fictitious entity is posited of which it is assumed that it could make
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with God, and he considered his work on transfinite numbers to have been directly communicated to him by God, who had chosen Cantor to reveal them to the world. He was a devout Lutheran whose explicit Christian beliefs shaped his philosophy of science.
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Cantor's philosophy on the nature of numbers led him to affirm a belief in the freedom of mathematics to posit and prove concepts apart from the realm of physical phenomena, as expressions within an internal reality. The only restrictions on this
2049:("Even if we were descended from Jews ten times over, and even though I may be, in principle, completely in favour of equal rights for Hebrews, in social life I prefer Christians...") which could be read to imply that she was of Jewish ancestry. 2068:
geboren, von israelitischen Eltern, die der dortigen portugisischen Judengemeinde...." ("He was born in Copenhagen of Jewish (lit: 'Israelite') parents from the local Portuguese-Jewish community.") In addition, Cantor's maternal great uncle,
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In 1874, Cantor married Vally Guttmann. They had six children, the last (Rudolph) born in 1886. Cantor was able to support a family despite his modest academic pay, thanks to his inheritance from his father. During his honeymoon in the
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by recognizing that there are two types of multiplicities. In his set theory, when it is assumed that the ordinals form a set, the resulting contradiction implies only that the ordinals form an inconsistent multiplicity. In contrast,
1800:, where he stressed the connection between his view of the infinite and the philosophical one. To Cantor, his mathematical views were intrinsically linked to their philosophical and theological implications â€“ he identified the 1452:, etc., in ways that would be largely acceptable now. The cardinal and ordinal arithmetic are reviewed. Cantor wanted the second paper to include a proof of the continuum hypothesis, but had to settle for expositing his theory of 1964:
his ideas were encountering: "... I realize that in this undertaking I place myself in a certain opposition to views widely held concerning the mathematical infinite and to opinions frequently defended on the nature of numbers."
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of the relationship between God and mathematics, although not in the same form as held by his critics, was long a concern of Cantor's. He directly addressed this intersection between these disciplines in the introduction to his
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that together formed an introduction to his set theory. At the same time, there was growing opposition to Cantor's ideas, led by Leopold Kronecker, who admitted mathematical concepts only if they could be constructed in a
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is a set which is either finite or denumerable; the denumerable sets are therefore the infinite countable sets. However, this terminology is not universally followed, and sometimes "denumerable" is used as a synonym for
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mission in Saint Petersburg, and his correspondence with his son shows both of them as devout Lutherans. Very little is known for sure about Georg Waldemar's origin or education. Cantor's mother, Maria Anna Böhm, was an
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regarding the nature of actual infinity. Some held to the view that infinity was an abstraction which was not mathematically legitimate, and denied its existence. Mathematicians from three major schools of thought
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In 1882, the mathematical correspondence between Cantor and Dedekind came to an end, apparently as a result of Dedekind's declining the chair at Halle. Cantor also began another important correspondence, with
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developed an axiom system that eliminates the paradoxes by using an approach similar to Cantor's—namely, by identifying collections that are not sets and treating them differently. Von Neumann stated that a
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Although the presentation is axiomatic rather than naive, Suppes proves and discusses many of Cantor's results, which demonstrates Cantor's continued importance for the edifice of foundational mathematics.
2056:, Cantor was of Jewish descent, although both parents were baptized. In a 1971 article entitled "Towards a Biography of Georg Cantor", the British historian of mathematics Ivor Grattan-Guinness mentions ( 8124: 3563:. Cantor actually applies his construction to the irrationals rather than the transcendentals, but he knew that it applies to any set formed by removing countably many numbers from the set of reals ( 748:
repeatedly cited Cantor's work, but the encounter did not come about. The following year, St. Andrews awarded Cantor an honorary doctorate, but illness precluded his receiving the degree in person.
482:, Russian Empire, was brought up in that city until the age of eleven. The oldest of six children, he was regarded as an outstanding violinist. His grandfather Franz Böhm (1788–1846) (the violinist 2155:, to infect Italian mathematics ... Any acceptance of infinitesimals necessarily meant that his own theory of number was incomplete. Thus to accept the work of Thomae, du Bois-Reymond, Stolz and 423: â€“ a proposition that Cantor vigorously rejected. Not all theologians were against Cantor's theory; prominent neo-scholastic philosopher Constantin Gutberlet was in favor of it and Cardinal 2525:, p. 170): "Aus dem Paradies, das Cantor uns geschaffen, soll uns niemand vertreiben können." (Literally: "Out of the Paradise that Cantor created for us, no one must be able to expel us.") 2109:(1927) â€“ largely the correspondence with Mittag-Leffler â€“ and Fraenkel (1930). Both were at second and third hand; neither had much on his personal life. The gap was largely filled by 8164: 1001:
also both expressed their admiration. At that Congress, Cantor renewed his friendship and correspondence with Dedekind. From 1905, Cantor corresponded with his British admirer and translator
5664:. With acknowledgement of Dauben's pioneering historical work, this article further discusses Cantor's relation to the philosophy of Spinoza and Leibniz in depth, and his engagement in the 783:
in modern mathematics, in the sense that it interprets propositions about mathematical objects (for example, numbers and functions) from all the traditional areas of mathematics (such as
1892:, he said that such an explanation could only come about by drawing on the resources of the philosophy of Spinoza and Leibniz. In making these claims, Cantor may have been influenced by 709:
events of 1904 preceded a series of hospitalizations at intervals of two or three years. He did not abandon mathematics completely, however, lecturing on the paradoxes of set theory (
692:), and this tragedy drained Cantor of much of his passion for mathematics. Cantor was again hospitalized in 1903. One year later, he was outraged and agitated by a paper presented by 573:
Cantor was promoted to extraordinary professor in 1872 and made full professor in 1879. To attain the latter rank at the age of 34 was a notable accomplishment, but Cantor desired a
2087:, for I am born 3 March 1845 at Saint Peterborough, Capital of Russia, but I went with my father and mother and brothers and sister, eleven years old in the year 1856, into Germany. 4619:, I.; Hawkins, T.; Pedersen, K. From the calculus to set theory, 1630–1910. An introductory history. Edited by I. Grattan-Guinness. Gerald Duckworth & Co. Ltd., London, 1980. 3004: 1324:, .... In other words, the real algebraic numbers are countable. Cantor starts his second construction with any sequence of real numbers. Using this sequence, he constructs 5471: 225: 2083:
Neither my father nor my mother were of German blood, the first being a Dane, borne in Kopenhagen, my mother of Austrian Hungar descension. You must know, Sir, that I am not a
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number of steps from the natural numbers, which he took as intuitively given. For Kronecker, Cantor's hierarchy of infinities was inadmissible, since accepting the concept of
1829:) opposed Cantor's theories in this matter. For constructivists such as Kronecker, this rejection of actual infinity stems from fundamental disagreement with the idea that 5385: 5130: 419:) saw Cantor's work as a challenge to the uniqueness of the absolute infinity in the nature of God â€“ on one occasion equating the theory of transfinite numbers with 2008:
The title on the memorial plaque (in Russian): "In this building was born and lived from 1845 till 1854 the great mathematician and creator of set theory Georg Cantor",
1992:'s philosophy, in the realms of both the philosophy of mathematics and metaphysics. He shared B. Russell's motto "Kant or Cantor", and defined Kant "yonder sophistical 1727:
treated all collections as sets, which leads to paradoxes. In Russell's set theory, the ordinals form a set, so the resulting contradiction implies that the theory is
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again until 1899. Soon after that second hospitalization, Cantor's youngest son Rudolph died suddenly on December 16 (Cantor was delivering a lecture on his views on
771:. Prior to this work, the concept of a set was a rather elementary one that had been used implicitly since the beginning of mathematics, dating back to the ideas of 3658:. The paper had been submitted in July 1877. Dedekind supported it, but delayed its publication due to Kronecker's opposition. Weierstrass actively supported it. 1776: 5868: 3287: 1569:
In 1878, Cantor submitted another paper to Crelle's Journal, in which he defined precisely the concept of a 1-to-1 correspondence and introduced the notion of "
2072:, a Hungarian violinist, has been described as Jewish, which may imply that Cantor's mother was at least partly descended from the Hungarian Jewish community. 1214:. Dedekind, whom Cantor befriended in 1872, cited this paper later that year, in the paper where he first set out his celebrated definition of real numbers by 1652:
or CH: there exists no set whose power is greater than that of the naturals and less than that of the reals (or equivalently, the cardinality of the reals is
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praised Cantor's set theory and, following public lectures delivered by Cantor at the first International Congress of Mathematicians, held in ZĂŒrich in 1897,
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Mögen wir zehnmal von Juden abstammen und ich im Princip noch so sehr fĂŒr Gleichberechtigung der HebrĂ€er sein, im socialen Leben sind mir Christen lieber ...
795:) in a single theory, and provides a standard set of axioms to prove or disprove them. The basic concepts of set theory are now used throughout mathematics. 5337: 2159:
was to deny the perfection of Cantor's own creation. Understandably, Cantor launched a thorough campaign to discredit Veronese's work in every way possible.
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were false. Since the paper had been read in front of his daughters and colleagues, Cantor perceived himself as having been publicly humiliated. Although
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The difficulty Cantor had in proving the continuum hypothesis has been underscored by later developments in the field of mathematics: a 1940 result by
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Hence he devotes much space to justifying his earlier work, asserting that mathematical concepts may be freely introduced as long as they are free of
1273:(that is, of "the same size" or having the same number of elements). Cantor proved that the collection of real numbers and the collection of positive 2494:, p. 1. Text includes a 1964 quote from psychiatrist Karl Pollitt, one of Cantor's examining physicians at Halle Nervenklinik, referring to Cantor's 2060:
27, pp. 345–391, 1971) that he was unable to find evidence of Jewish ancestry. (He also states that Cantor's wife, Vally Guttmann, was Jewish).
3887:, pp. 288, 290–291. Cantor had pointed out that inconsistent multiplicities face the same restriction: they cannot be members of any multiplicity. ( 1391:
In 1891, he published a paper containing his elegant "diagonal argument" for the existence of an uncountable set. He applied the same idea to prove
597:, in that order, but each declined the chair after being offered it. Friedrich Wangerin was eventually appointed, but he was never close to Cantor. 1611:. While he made free use of countability as a concept, he did not write the word "countable" until 1883. Cantor also discussed his thinking about 1388:
and ordinal numbers. In 1885, Cantor extended his theory of order types so that the ordinal numbers simply became a special case of order types.
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blamed Kronecker's persistent criticism and Cantor's inability to confirm his continuum hypothesis" for Cantor's recurring bouts of depression.
1926:. Although later this Cardinal accepted the theory as valid, due to some clarifications from Cantor's. Cantor even sent one letter directly to 1577:) or "equivalence" of sets: two sets are equivalent (have the same power) if there exists a 1-to-1 correspondence between them. Cantor defined 400: 3244: 1053:. Cantor solved this problem in 1869. It was while working on this problem that he discovered transfinite ordinals, which occurred as indices 4105:
mathematical content, is nevertheless essential for the full understanding of his theory and why it developed in its early stages as it did.
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Some Christian theologians saw Cantor's work as a challenge to the uniqueness of the absolute infinity in the nature of God. In particular,
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was regarded as counter-intuitive â€“ even shocking. This caused it to encounter resistance from mathematical contemporaries such as
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permit either a proof or refutation of CH, or even for direct evidence for or against CH itself; among the most prominent of these is
1420: 8119: 8114: 8094: 5900: 3115:"The rise of non-Archimedean mathematics and the roots of a misconception. I. The emergence of non-Archimedean systems of magnitudes" 6100: 4490:, pp. 93–94, from Louis' trip to Chicago in 1863. It is ambiguous in German, as in English, whether the recipient is included. 986: 697: 669: 609:. But in 1885, Mittag-Leffler was concerned about the philosophical nature and new terminology in a paper Cantor had submitted to 7732: 6955: 5811: 5789: 5010: 2278: 1562:" ("I see it, but I don't believe it!") The result that he found so astonishing has implications for geometry and the notion of 5370: 5097: 1187:, and so on. He had examples that went on forever, and so here was a naturally occurring infinite sequence of infinite numbers 8139: 5299: 5266: 5233: 5200: 5167: 5078: 5030: 4950: 4938: 4917: 4894: 4811: 4792: 4773: 4727: 4678: 3636: 2553: 534:, then and later a center for mathematical research. Cantor was a good student, and he received his doctoral degree in 1867. 498:, seeking milder winters than those of Saint Petersburg. In 1860, Cantor graduated with distinction from the Realschule in 486:'s brother) was a well-known musician and soloist in a Russian imperial orchestra. Cantor's father had been a member of the 8099: 7209: 7022: 5861: 1351:
would open the door to paradoxes which would challenge the validity of mathematics as a whole. Cantor also introduced the
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Dauben, J.: The development of the Cantorian set theory, pp.~181–219. See pp.216–217. In Bos, H.; Bunn, R.; Dauben, J.;
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are then introduced as the order types of well-ordered sets. Cantor then defines the addition and multiplication of the
507: 8079: 7682: 7537: 6401: 4448:, Grattan-Guinness's only evidence on the grandfather's date of death is that he signed papers at his son's engagement. 3336:. Gray (pp. 821–822) describes a computer program that uses Cantor's constructions to generate a transcendental number. 2694: 2614: 5751: 734:
In 1911, Cantor was one of the distinguished foreign scholars invited to the 500th anniversary of the founding of the
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in Zurich. After receiving a substantial inheritance upon his father's death in June 1863, Cantor transferred to the
311: 6307: 5865: 3320: 1492: 912:, which extended the arithmetic of the natural numbers. His notation for the cardinal numbers was the Hebrew letter 634:
This crisis led him to apply to lecture on philosophy rather than on mathematics. He also began an intense study of
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at the University of Berlin in 1867. After teaching briefly in a Berlin girls' school, he took up a position at the
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19 February] 1845 â€“ 6 January 1918) was a mathematician who played a pivotal role in the creation of
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This paper displeased Kronecker and Cantor wanted to withdraw it; however, Dedekind persuaded him not to do so and
1754:. He had two motivations for developing the axiom system: eliminating the paradoxes and securing his proof of the 7783: 7515: 7109: 5806: 1676: 1533:, though he did not use that phrase. He then began looking for a 1-to-1 correspondence between the points of the 1496: 1139:
were closed, they contained their limit points, and the intersection of the infinite decreasing sequence of sets
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in Paris. Cantor's work also attracted favorable notice beyond Hilbert's celebrated encomium. The US philosopher
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Davenport, Anne A. (1997). "The Catholics, the Cathars, and the Concept of Infinity in the Thirteenth Century".
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in particular, were noted. In August 1862, he then graduated from the "Höhere Gewerbeschule Darmstadt", now the
6961: 6368: 5973: 5928: 3066:(2012). "A Burgessian Critique of Nominalistic Tendencies in Contemporary Mathematics and its Historiography". 2119:(1937), which one of Cantor's modern biographers describes as "perhaps the most widely read modern book on the 2024:. There is very little direct information on them. Cantor's father, Georg Waldemar Cantor, was educated in the 1549:, there exists a 1-to-1 correspondence between the points on the unit line segment and all of the points in an 1034: 2096:
present in the registers of the Jewish community, and that he completely without doubt was not a Jew ..."
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Cantor established these results using two constructions. His first construction shows how to write the real
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numbers and their arithmetic. Cantor's work is of great philosophical interest, a fact he was well aware of.
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It was important to Cantor that his philosophy provided an "organic explanation" of nature, and in his 1883
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as its set of zeros, Cantor had discovered a procedure that produced another trigonometric series that had
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was an important shared concern within the realms of mathematics, philosophy and religion. Preserving the
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For this, and more information on the mathematical importance of Cantor's work on set theory, see e.g.,
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has traced the effect Cantor's Christian convictions had on the development of transfinite set theory.
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Between 1870 and 1872, Cantor published more papers on trigonometric series, and also a paper defining
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Cantor recovered soon thereafter, and subsequently made further important contributions, including his
337: 7973: 7180: 531: 138: 8134: 8084: 8046: 7968: 7214: 7099: 7087: 7082: 6627: 6222: 6212: 5963: 4595:, p. 1 and notes. (Bell's Jewish stereotypes appear to have been removed from some postwar editions.) 3369: 2581: 2253: 1813: 1329: 1062: 811: 735: 341: 17: 5650: 5591: 4327: 4165: 3672:. One of Gödel's last papers argues that the CH is false, and the continuum has cardinality Aleph-2. 2091:
There were documented statements, during the 1930s, that called this Jewish ancestry into question:
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such as Cantor's diagonal argument are sufficient proof that something exists, holding instead that
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and on Cantor's religious ideas. This was later published, as were several of his expository works.
7015: 6483: 6191: 6186: 6176: 5886: 5816: 5794: 4697:. Proceedings of the 9th ACMS Conference (Westmont College, Santa Barbara, Calif.). pp. 1–22. 3761:
for each ordinal. If this construction runs out of elements, then the function well-orders the set
1919: 846: 424: 324: 7937: 2719: 2639: 1542: 1430: 7747: 7634: 7552: 7427: 7379: 7193: 7116: 6322: 6232: 6227: 6217: 6069: 4991: 4669:[Unavailable on archive.org] Georg Cantor: his mathematics and philosophy of the infinite 3024:
Cooke, Roger (1993). "Uniqueness of trigonometric series and descriptive set theory, 1870–1985".
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for his thesis, also on number theory, which he presented in 1869 upon his appointment at Halle.
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Men of Mathematics: The Lives and Achievements of the Great Mathematicians from Zeno to Poincaré
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upon marriage. However, there is a letter from Cantor's brother Louis to their mother, stating:
1675:
together imply that the continuum hypothesis can be neither proved nor disproved using standard
602: 8089: 7675: 7586: 7467: 7279: 7092: 6969: 6920: 6528: 6394: 6297: 6140: 6079: 6064: 6059: 6023: 5142: 4886: 4880: 3746: 3068: 2120: 1046: 990: 701: 635: 5719: 4984:"Über Grenzzahlen und Mengenbereiche: neue Untersuchungen ĂŒber die Grundlagen der Mengenlehre" 1881: â€“ and was shocked when he realized that he was the only faculty member at Halle who did 1664:
it, in vain. His inability to prove the continuum hypothesis caused him considerable anxiety.
8074: 7834: 7742: 7737: 7502: 7472: 7416: 7336: 7316: 7294: 6754: 6446: 6363: 6161: 6135: 6120: 6105: 5983: 4761: 4737: 2686: 2680: 2034: 1859: 1830: 1755: 1704: 1440: 1368:), published in 1883, was the most important of the six and was also published as a separate 1338: 1286: 1265:
The beginning of set theory as a branch of mathematics is often marked by the publication of
1026: 982: 943: 915: 788: 744: 3628: 3622: 2950: 2545: 2539: 1660:
aleph-one). Cantor believed the continuum hypothesis to be true and tried for many years to
814:(hereinafter denoted "1-to-1 correspondence") in set theory. He used this concept to define 8154: 8149: 7773: 7727: 7576: 7566: 7400: 7331: 7284: 7224: 7104: 6915: 6910: 6700: 6632: 6353: 6125: 5978: 5529: 4537: 3205: 2243: 2148: 2144: 1740: 1732: 1649: 1643: 1261:. The sequence at the bottom cannot occur anywhere in the infinite list of sequences above. 1227: 1050: 973: 776: 718: 710: 589:
died. Halle accepted Cantor's suggestion that Heine's vacant chair be offered to Dedekind,
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Contains a detailed treatment of both Cantor's and Dedekind's contributions to set theory.
4909: 1634:
supported its publication. Nevertheless, Cantor never again submitted anything to Crelle.
8: 7942: 7768: 7571: 7482: 7390: 7385: 7199: 7141: 7072: 7008: 6673: 6650: 6533: 6518: 6451: 6327: 6130: 6095: 5958: 5802: 5780: 5690: 5643:
Georg Cantor, Leben, Werk und Wirkung (Georg Cantor, Life, Work and Influence, in German)
5520:
Dauben, Joseph W. (June 1983). "Georg Cantor and the Origins of Transfinite Set Theory".
4328:"The Motives Behind Cantor's Set Theory—Physical, Biological and Philosophical Questions" 3970: 3778: 2135:
Cantor devoted some of his most vituperative correspondence, as well as a portion of the
1851: 1744: 1736: 1624: 1550: 1526: 1424: 1408: 1392: 897: 714: 689: 658: 643: 396: 212: 6585: 5533: 5068: 3209: 2105:
Until the 1970s, the chief academic publications on Cantor were two short monographs by
8010: 7911: 7895: 7494: 7489: 7274: 7229: 7136: 6900: 6880: 6844: 6839: 6602: 6272: 6145: 6038: 6033: 5933: 5923: 5611: 5541: 5454: 5417: 5357: 5319: 5286: 5253: 5220: 5187: 5122: 4970: 4928: 4667: 4653: 4499: 4358: 4215: 4207: 4088: 4072: 4033: 4025: 3312: 3217: 3137: 3095: 3077: 3041: 2928: 2345: 2273: 2205: 2115: 2009: 1834: 1771: 1751: 1661: 1495:
had stated this theorem a bit earlier, but his proof, as well as Cantor's, was flawed.
1412: 1373: 901: 412: 408: 376: 6332: 5841: 4983: 8058: 8005: 7885: 7839: 7804: 7712: 7668: 7351: 7188: 7151: 7121: 7045: 6943: 6905: 6829: 6737: 6642: 6548: 6523: 6513: 6456: 6439: 6429: 6424: 6387: 6028: 5938: 5707: 5682: 5630: 5615: 5577: 5556: 5509: 5458: 5421: 5361: 5323: 5290: 5257: 5224: 5191: 5126: 5074: 5026: 4974: 4934: 4913: 4890: 4866: 4849: 4807: 4788: 4769: 4723: 4674: 4350: 4219: 4080: 4037: 4015: 3632: 3479: 3141: 3099: 3045: 2956: 2700: 2690: 2610: 2549: 2352: 2213: 2199: 2191: 2156: 2123:"; and as "one of the worst". Bell presents Cantor's relationship with his father as 2057: 1981: 1866: 1801: 1696: 1616: 1604: 1581:(or denumerable sets) as sets which can be put into a 1-to-1 correspondence with the 1203: 850: 590: 519: 431: 416: 380: 5480:. Almost everything that Cantor wrote. Includes excerpts of his correspondence with 4720:
From Immanuel Kant to David Hilbert: A Source Book in the Foundations of Mathematics
4362: 4307:
Newstead, Anne (2009). "Cantor on Infinity in Nature, Number, and the Divine Mind".
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Cholera bacillus of mathematics', which had spread from Germany through the work of
1973: 1854:'s attacks were finitist: he believed that Cantor's diagonal argument conflated the 1843: 1237:
of mathematics". Cantor also published an erroneous "proof" of the inconsistency of
384: 7983: 7978: 7890: 7865: 7844: 7763: 7639: 7629: 7614: 7609: 7477: 7131: 6860: 6727: 6710: 6538: 6312: 6302: 6267: 5988: 5857: 5773: 5603: 5537: 5481: 5446: 5409: 5349: 5311: 5278: 5245: 5212: 5179: 5154: 5114: 5000: 4962: 4861: 4834: 4749: 4645: 4636:(1977). "Georg Cantor and Pope Leo XIII: Mathematics, Theology, and the Infinite". 4616: 4342: 4289: 4199: 4161: 4157: 4064: 4007: 3304: 3213: 3191: 3129: 3087: 3033: 2920: 2568: 2268: 2177: 2110: 2076: 2053: 2030: 1902: 1839: 1766: 1724: 1631: 1453: 1325: 1297: 1290: 1042: 1038: 998: 862: 739: 570:, whom he had met at Interlaken in Switzerland two years earlier while on holiday. 567: 523: 479: 435: 392: 285: 250: 237: 77: 5649:
Newstead, Anne (2009). "Cantor on Infinity in Nature, Number, and the Divine Mind"
5551:
Labyrinth of Thought: A History of Set Theory and Its Role in Mathematical Thought
3851:
Moore devotes a chapter to this criticism: "Zermelo and His Critics (1904–1908)",
1285:
that he gave in 1891. Cantor's article also contains a new method of constructing
7824: 7809: 7696: 7508: 7446: 7264: 7077: 6875: 6812: 6473: 6348: 6252: 5909: 5872: 5158: 5064: 4714:
is actually from the works of Seneca and has no implication of divine revelation.
3187: 3011: 2238: 2021: 1985: 1977: 1915: 1788: 1759: 1680: 1590: 1416: 1385: 1348: 1258: 1211: 1002: 940:) with a natural number subscript; for the ordinals he employed the Greek letter 905: 854: 827: 685: 446: 427:
accepted it as a valid theory (after Cantor made some important clarifications).
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2004. Note, though, that Cantor's Latin quotation described in this article as
1873:
Cantor also believed that his theory of transfinite numbers ran counter to both
1862:, thus conflating the concept of rules for generating a set with an actual set. 693: 618:
too great a demand! ... But of course I never want to know anything again about
8034: 8022: 7906: 7880: 7855: 7850: 7644: 7441: 7422: 7326: 7311: 7268: 7204: 7146: 6890: 6822: 6793: 6749: 6732: 6715: 6668: 6612: 6597: 6565: 6503: 6292: 5948: 5689:
Chapter 16 illustrates how Cantorian thinking intrigues a leading contemporary
5504:
The Mystery of the Aleph: Mathematics, the Kabbala, and the Search for Infinity
5485: 4839: 3956: 3669: 2946: 2495: 1972:
and defined in terms of previously accepted concepts. He also cites Aristotle,
1940: 1747:
and Cantor even though neither of them believed that they had found paradoxes.
1582: 1381: 1270: 1207: 909: 806:; this showed, for the first time, that there exist infinite sets of different 803: 369: 357: 81: 6834: 4753: 4567:, vol. I, p. 229. In English in the original; italics also as in the original. 4346: 3145: 3133: 3091: 1407:. This established the richness of the hierarchy of infinite sets, and of the 483: 43: 8068: 7963: 7875: 7860: 7649: 7451: 7365: 7360: 6744: 6720: 6590: 6560: 6543: 6508: 6493: 6317: 6277: 6115: 5672: 5587: 5467: 5118: 4633: 4407: 2991: 2248: 2140: 2128: 2038: 1989: 1969: 1947: 1927: 1806: 1620: 1578: 1574: 1238: 1219: 1018: 994: 978: 857:
are everywhere dense, but countable. He also showed that all countable dense
823: 705: 639: 594: 547: 450: 442: 99: 7619: 6282: 4029: 4001: 2704: 2069: 1782: 1668: 1585:, and proved that the rational numbers are denumerable. He also proved that 1415:
that Cantor had defined. His argument is fundamental in the solution of the
7870: 7814: 7594: 7412: 7341: 7299: 7158: 7055: 6989: 6984: 6885: 6622: 6555: 6287: 6257: 6110: 5516:. A popular treatment of infinity, in which Cantor is frequently mentioned. 5098:"Ueber eine Eigenschaft des Inbegriffes aller reellen algebraischen Zahlen" 5047:
Older sources on Cantor's life should be treated with caution. See section
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of zeros of a trigonometric series. Given a trigonometric series f(x) with
1030: 1022: 853:, but has the same cardinality as the set of all real numbers, whereas the 819: 752: 586: 555: 543: 527: 503: 453:
defended it from its critics by declaring, "No one shall expel us from the
388: 345: 245: 5005: 4293: 1707:"every set can be well-ordered" and stated that it is a "law of thought". 1690: 1376:
were a systematic extension of the natural numbers. It begins by defining
680:
After Cantor's 1884 hospitalization there is no record that he was in any
650:); this ultimately resulted in two pamphlets, published in 1896 and 1897. 7819: 7624: 7259: 6950: 6870: 6580: 6575: 5953: 5943: 5837: 5697: 5567: 4084: 4011: 2911:
Johnson, Phillip E. (1972). "The Genesis and Development of Set Theory".
2682:
Math and mathematicians: the history of math discoveries around the world
2025: 1935: 1878: 1874: 1597: 1570: 1534: 1445: 1396: 1096: 858: 838: 807: 799: 756: 353: 270: 202: 5661: 3971:"Cantor's Concept of Infinity: Implications of Infinity for Contingence" 2717: 7778: 7604: 7375: 7031: 6803: 6788: 6783: 6764: 6498: 6018: 5607: 5499: 5450: 5413: 5353: 5315: 5282: 5249: 5216: 5183: 4966: 4657: 4143:"The Three Crises in Mathematics: Logicism, Intuitionism and Formalism" 3842:, pp. 158–160. Moore argues that the latter was his primary motivation. 3316: 3261: 3037: 2932: 2152: 2017: 1377: 1352: 1223: 1006: 868:
Cantor introduced fundamental constructions in set theory, such as the
842: 815: 768: 728: 727:
in 1903, and attending the International Congress of Mathematicians at
681: 511: 360:. Cantor's method of proof of this theorem implies the existence of an 349: 333: 151: 128: 4211: 4076: 4052: 1922:, who once replied by equating the theory of transfinite numbers with 1249: 441:
The harsh criticism has been matched by later accolades. In 1904, the
7901: 7407: 7370: 7321: 7219: 6759: 6705: 6617: 6468: 5993: 4277: 1923: 1855: 1792: 1648:
Cantor was the first to formulate what later came to be known as the
1612: 1563: 1530: 1512: 1369: 1278: 869: 772: 574: 499: 495: 491: 420: 5668:. Brief mention is made of Cantor's learning from F.A.Trendelenburg. 5472:"Gesammelte Abhandlungen mathematischen und philosophischen inhalts" 4649: 3308: 2924: 1336:
Between 1879 and 1884, Cantor published a series of six articles in
490:; when he became ill, the family moved to Germany in 1856, first to 7799: 7691: 6660: 5968: 5023:
From Frege to Godel: A Source Book in Mathematical Logic, 1879–1931
4804:
Zermelo's Axiom of Choice: Its Origins, Development & Influence
4203: 4068: 3753:
whose cardinality is not an aleph. A function from the ordinals to
1954: 1826: 1344: 1301: 1274: 1234: 1012: 834: 792: 361: 115: 8125:
Academic staff of the Martin Luther University of Halle-Wittenberg
5878: 5070:
Contributions to the Founding of the Theory of Transfinite Numbers
4552:
IsmerjĂŒk oket?: zsidĂł szĂĄrmazĂĄsĂș nevezetes magyarok arckĂ©pcsarnoka
3082: 1703:
larger ordinals to add to it. In 1883, Cantor also introduced the
1695:
In 1883, Cantor divided the infinite into the transfinite and the
7717: 6607: 6410: 5746: 4554:, IstvĂĄn RemĂ©nyi Gyenes Ex Libris, (Budapest 1997), pages 132–133 3265: 3061: 2124: 1951: 1719: 1231: 1121:, then he could construct a trigonometric series whose zeros are 784: 605:
in Sweden, and soon began to publish in Mittag-Leffler's journal
554:, where he spent his entire career. He was awarded the requisite 111: 3773:. Therefore, the function maps all the ordinals one-to-one into 2079:, Cantor described his ancestry and self-perception as follows: 1499:
supplied a correct proof in his 1898 PhD thesis; hence the name
1372:. It contained Cantor's reply to his critics and showed how the 470: 411:, believed the theory had been communicated to him by God. Some 7660: 7432: 7254: 6678: 5758: 3350: 2309:
The biographical material in this article is mostly drawn from
1449: 1277:
are not equinumerous. In other words, the real numbers are not
1045:, and Heine himself: the uniqueness of the representation of a 877: 751:
Cantor retired in 1913, and lived in poverty and suffered from
219: 3757:
is constructed by successively choosing different elements of
3194:
suggested that all infinite sets were equinumerous â€“ see
1812:
Debate among mathematicians grew out of opposing views in the
7304: 7064: 7000: 4436:, George Allen and Unwin Ltd., 1971 (London), vol. 1, p. 217. 3345:
Cantor's construction starts with the set of transcendentals
1541:. In an 1877 letter to Richard Dedekind, Cantor proved a far 965: 937: 933: 798:
In one of his earliest papers, Cantor proved that the set of
4003:
Georg Cantor: His Mathematics and Philosophy of the Infinite
3489:
and two countable sets. A one-to-one correspondence between
1517: 303: 8165:
Members of the Göttingen Academy of Sciences and Humanities
6379: 4278:"Cantor on Infinity in Nature, Number, and the Divine Mind" 3257: 3161:
This follows closely the first part of Cantor's 1891 paper.
2421: 2419: 2417: 2347:
Georg Cantor His Mathematics and Philosophy of the Infinite
563: 449:, the highest honor it can confer for work in mathematics. 5435:"BeitrĂ€ge zur BegrĂŒndung der transfiniten Mengenlehre (2)" 5398:"BeitrĂ€ge zur BegrĂŒndung der transfiniten Mengenlehre (1)" 3196:
Moore, A. W. (April 1995). "A brief history of infinity".
1960:
Cantor's 1883 paper reveals that he was well aware of the
566:, Cantor spent much time in mathematical discussions with 430:
The objections to Cantor's work were occasionally fierce:
1783:
Philosophy, religion, literature and Cantor's mathematics
1684: 1434:
Passage of Georg Cantor's article with his set definition
294: 6003: 5847:"Cantor infinities", analysis of Cantor's 1874 article, 5371:"Ueber eine elementare Frage der Mannigfaltigkeitslehre" 5338:"Ueber unendliche, lineare Punktmannichfaltigkeiten (6)" 5300:"Ueber unendliche, lineare Punktmannichfaltigkeiten (5)" 5267:"Ueber unendliche, lineare Punktmannichfaltigkeiten (4)" 5234:"Ueber unendliche, lineare Punktmannichfaltigkeiten (3)" 5201:"Ueber unendliche, lineare Punktmannichfaltigkeiten (2)" 5168:"Ueber unendliche, lineare Punktmannichfaltigkeiten (1)" 2414: 810:. He was also the first to appreciate the importance of 700:. The paper attempted to prove that the basic tenets of 5625:
Husserl or Frege? Meaning, Objectivity, and Mathematics
2569:
ru: The musical encyclopedia (ĐœŃƒĐ·Ń‹ĐșĐ°Đ»ŃŒĐœĐ°Ń ŃĐœŃ†ĐžĐșĐ»ĐŸĐżĐ”ĐŽĐžŃ)
1691:
Absolute infinite, well-ordering theorem, and paradoxes
1438:
In 1895 and 1897, Cantor published a two-part paper in
5714:
Deals with similar topics to Aczel, but in more depth.
4951:"Untersuchungen ĂŒber die Grundlagen der Mengenlehre I" 4850:"Burali-Forti's Paradox: A Reappraisal of Its Origins" 4691:
Georg Cantor and the Battle for Transfinite Set Theory
4053:"Georg Cantor: The Personal Matrix of His Mathematics" 2139:, to attacking what he described at one point as the ' 1456:
and ordinal numbers. Cantor attempts to prove that if
7994: 2456: 2454: 2351:. princeton university press. pp. introduction. 1777:
models of set theory that satisfy von Neumann's axiom
946: 918: 896:
is an infinite set; this result soon became known as
767:
Cantor's work between 1874 and 1884 is the origin of
340:
in mathematics. Cantor established the importance of
312: 297: 291: 5378:
Jahresbericht der Deutschen Mathematiker-Vereinigung
3470:
is the sequence of real algebraic numbers. So both
2167: 1950:, describing them as both an "abomination" and "the 1758:. Zermelo had proved this theorem in 1904 using the 1361:
Grundlagen einer allgemeinen Mannigfaltigkeitslehre"
884:. He later proved that the size of the power set of 672:, which took place in ZĂŒrich, Switzerland, in 1897. 300: 5488:
Cantor biography (p. 452–483) in the appendix.
5330:
Grundlagen einer allgemeinen Mannigfaltigkeitslehre
3627:. New York: W. W. Norton and Company. p.  1798:
Grundlagen einer allgemeinen Mannigfaltigkeitslehre
1289:. Transcendental numbers were first constructed by 325:[ˈɥeːɔʁkˈfɛʁdinantˈluːtvÉȘçˈfiːlÉȘpˈkantoËÉÌŻ] 288: 5622: 4848:Moore, Gregory H.; Garciadiego, Alejandro (1981). 4666: 3624:Everything and More: A Compact History of Infinity 2451: 2344: 1988:on infinity. Instead, he always strongly rejected 1946:Meanwhile, Cantor himself was fiercely opposed to 1900:. Trendelenburg was also the examiner of Cantor's 1556:. About this discovery Cantor wrote to Dedekind: " 1230:, describing them as both "an abomination" and "a 952: 924: 5800: 5778: 3245:A propos de l'existence des nombres transcendants 1930:himself, and addressed several pamphlets to him. 1164:,... formed a limit set, which we would now call 664:In 1889, Cantor was instrumental in founding the 8066: 5726:. Metaphysics Research Lab, Stanford University. 5506:. New York: Four Walls Eight Windows Publishing. 5056: 4827:Russell: The Journal of Bertrand Russell Studies 3781:is an inconsistent submultiplicity contained in 3769:is an aleph, contradicting the assumption about 3057: 3055: 2906: 2904: 1013:Number theory, trigonometric series and ordinals 5147:Journal fĂŒr die Reine und Angewandte Mathematik 5106:Journal fĂŒr die Reine und Angewandte Mathematik 5089: 4904:Purkert, Walter; Ilgauds, Hans Joachim (1985). 4875:Purkert, Walter (1989). "Cantor's Views on the 4740:(1971). "Towards a Biography of Georg Cantor". 2718:O'Connor, John J; Robertson, Edmund F. (1998). 861:without end points are order-isomorphic to the 5637:Three chapters and 18 index entries on Cantor. 2679:Bruno, Leonard C.; Baker, Lawrence W. (1999). 2020:and fled to Russia from the disruption of the 1858:of a set of cardinal or real numbers with its 1529:paper was the first to invoke the notion of a 1366:Foundations of a General Theory of Aggregates" 1180:would also have to have a set of limit points 226:De aequationibus secundi gradus indeterminatis 7676: 7016: 6395: 5894: 4879:". In Rowe, David E.; McCleary, John (eds.). 3052: 2901: 2478:, p. 280: "... the tradition made popular by 1885:hold to deterministic philosophical beliefs. 738:in Scotland. Cantor attended, hoping to meet 613:. He asked Cantor to withdraw the paper from 8145:Baltic-German people from the Russian Empire 5854:(for English version, click 'Ă  tĂ©lĂ©charger') 5368: 5335: 5264: 5231: 5198: 4766:The Search for Mathematical Roots: 1870–1940 1557: 1506: 5640: 5623:Hill, C. O.; Rosado Haddock, G. E. (2000). 4882:The History of Modern Mathematics, Volume 1 4785:Cantorian Set Theory and Limitation of Size 4231: 4229: 3975:Perspectives on Science and Christian Faith 3112: 2533: 2531: 2404: 2402: 1403:is strictly larger than the cardinality of 1025:, the Professor at Halle, Cantor turned to 7683: 7669: 7023: 7009: 6402: 6388: 5901: 5887: 5820:Mainly devoted to Cantor's accomplishment. 5720:"Wittgenstein's Philosophy of Mathematics" 3280:For more details on Cantor's article, see 2870:, pp. 248–250. For Cantor's reaction, see 2833:, pp. 376–377. Letter dated June 21, 1884. 2810: 2808: 2678: 2506: 2504: 2471: 2469: 1918:, as well as theologians such as Cardinal 42: 5654:American Catholic Philosophical Quarterly 5548: 5004: 4865: 4838: 4325: 4309:American Catholic Philosophical Quarterly 4282:American Catholic Philosophical Quarterly 4189: 3684:, pp. 587–588; English translation: 3288:"Georg Cantor and Transcendental Numbers" 3186:For example, geometric problems posed by 3081: 2016:Cantor's paternal grandparents were from 1021:, his thesis topic. At the suggestion of 977:, introduced by Cantor, was presented by 537: 502:; his exceptional skills in mathematics, 344:between the members of two sets, defined 5143:"Ein Beitrag zur Mannigfaltigkeitslehre" 4306: 4275: 4226: 3256:The real algebraic numbers are the real 2913:The Two-Year College Mathematics Journal 2528: 2399: 2385: 2383: 2370: 2368: 2003: 1850:stance against Cantor's work. Finally, 1516: 1429: 1248: 987:International Congress of Mathematicians 968:). This notation is still in use today. 900:. Cantor developed an entire theory and 698:International Congress of Mathematicians 675: 670:International Congress of Mathematicians 638:, thinking there might be evidence that 469: 8160:Technische UniversitĂ€t Darmstadt alumni 6956:List of fractals by Hausdorff dimension 5866:Georg Cantor and Transcendental Numbers 5812:MacTutor History of Mathematics Archive 5790:MacTutor History of Mathematics Archive 5724:The Stanford Encyclopedia of Philosophy 5671: 5586: 5492: 4513:Memoires Scientifique 13 Correspondance 4458: 4456: 4454: 4372:from the original on 21 September 2020. 4257: 4140: 4122: 4110: 3922: 3765:. This implies that the cardinality of 3620: 3570: 3282:Georg Cantor's first set theory article 2910: 2889: 2848: 2805: 2793: 2781: 2726: 2720:"Georg Ferdinand Ludwig Philipp Cantor" 2522: 2501: 2485: 2466: 2279:List of things named after Georg Cantor 1637: 833:Cantor developed important concepts in 14: 8067: 5717: 5696: 5566: 5519: 5465: 5432: 5395: 5297: 5165: 5140: 5095: 4413: 4247: 4050: 3999: 3968: 3681: 3604: 3600: 3588: 3564: 3170: 2979: 2945: 2866:For a discussion of König's paper see 2738: 2460: 2342: 2033:born in Saint Petersburg and baptized 8175:Mathematicians from the German Empire 7664: 7004: 6383: 5882: 5662:https://doi.org/10.5840/acpq200983444 5498: 4787:. New York: Oxford University Press. 4722:. New York: Oxford University Press. 4704:from the original on 23 January 2018. 4539:Modern Jews and their musical agendas 4487: 4434:The Autobiography of Bertrand Russell 4410:, see Hill and Rosado Haddock (2000). 3195: 3026:Archive for History of Exact Sciences 3023: 2674: 2672: 2670: 2668: 2666: 2664: 2662: 2660: 2634: 2632: 2630: 2628: 2626: 2544:. New York: Springer-Verlag. p.  2380: 2365: 580:constructive viewpoint in mathematics 530:. He spent the summer of 1866 at the 323: 280:Georg Ferdinand Ludwig Philipp Cantor 64:Georg Ferdinand Ludwig Philipp Cantor 7733:Hilbert's paradox of the Grand Hotel 5391:from the original on 1 January 2018. 5136:from the original on 7 October 2017. 4673:. Boston: Harvard University Press. 4451: 3955:, p. 13. Compare to the writings of 3871:, pp. 263–264; English translation: 3749:, starts by assuming there is a set 3285: 2537: 1999: 1559:Je le vois, mais je ne le crois pas! 1421:Gödel's first incompleteness theorem 888:is strictly larger than the size of 762: 465: 5908: 5842:The Early Development of Set Theory 5830:Stanford Encyclopedia of Philosophy 5735:. Editrice Pitagora, Bologna, 2008. 3014:Mathematical Association of America 1787:The concept of the existence of an 1029:. Heine proposed that Cantor solve 876:, which is the set of all possible 802:is "more numerous" than the set of 102:, Province of Saxony, German Empire 24: 8110:20th-century German mathematicians 8105:19th-century German mathematicians 5574:. New York & Berlin: Springer. 5542:10.1038/scientificamerican0683-122 5474:. Berlin: Springer. Archived from 5021:van Heijenoort, Jean (1967). 5016:from the original on 28 June 2004. 4515:, Gauthier-Villars, Paris, p. 306. 3243:Liouville, Joseph (May 13, 1844). 3218:10.1038/scientificamerican0495-112 2722:. MacTutor History of Mathematics. 2657: 2623: 1017:Cantor's first ten papers were on 919: 841:. For example, he showed that the 585:In 1881, Cantor's Halle colleague 25: 8186: 8170:Emigrants from the Russian Empire 7928:Differential geometry of surfaces 6938:How Long Is the Coast of Britain? 5862:Cantor's first set theory article 5739: 5553:. Basel, Switzerland: BirkhĂ€user. 4760: 4736: 4712:a familiar passage from the Bible 4588: 4576: 4479: 2830: 2775: 2685:. Detroit, Mich.: U X L. p.  2314: 2297: 2233:Deutsche Mathematiker-Vereinigung 1996:who knew so little mathematics." 1683:(the combination referred to as " 1545:result: for any positive integer 1501:Cantor–Bernstein–Schröder theorem 1358:The fifth paper in this series, " 826:(or countably infinite) sets and 724:Deutsche Mathematiker-Vereinigung 648:Shakespearean authorship question 8120:20th-century German philosophers 8115:19th-century German philosophers 8095:19th-century German male writers 8052: 8040: 8028: 8016: 8004: 7723:Controversy over Cantor's theory 7690: 7054: 6002: 5757: 5745: 5073:. New York: Dover Publications. 5048: 4981: 4948: 4874: 4823:"The Roots of Russell's Paradox" 4609: 4598: 4582: 4570: 4557: 4542:, Oxford University Press, p. 9. 3912: 3868: 3827: 2644:www-history.mcs.st-andrews.ac.uk 2198: 2184: 2170: 1943:, whom Cantor had met in Halle. 1743:. Russell named paradoxes after 508:Technische UniversitĂ€t Darmstadt 455:paradise that Cantor has created 405:Controversy over Cantor's theory 284: 269: 27:German mathematician (1845–1918) 7784:Synthetic differential geometry 5062: 5040: 5020: 4718:Ewald, William B., ed. (1996). 4687: 4664: 4638:Journal of the History of Ideas 4632: 4604: 4592: 4591:(quotation from p. 350, note), 4545: 4530: 4524: 4518: 4505: 4493: 4475: 4468: 4439: 4426: 4420: 4400: 4394: 4388: 4382: 4376: 4319: 4300: 4269: 4263: 4251: 4241: 4235: 4183: 4134: 4128: 4116: 4044: 3993: 3962: 3946: 3940: 3934: 3928: 3906: 3894: 3878: 3872: 3858: 3845: 3833: 3817: 3801: 3739: 3727: 3715: 3703: 3691: 3675: 3661: 3651: 3645: 3614: 3608: 3594: 3582: 3576: 3339: 3274: 3250: 3237: 3224: 3180: 3164: 3155: 3106: 3017: 2998: 2984: 2973: 2939: 2895: 2883: 2877: 2871: 2867: 2860: 2854: 2842: 2836: 2826: 2820: 2814: 2799: 2787: 2771: 2765: 2756: 2750: 2744: 2732: 2711: 2599: 2574: 2562: 2516: 2510: 2491: 2475: 2441: 2437: 2425: 2408: 2393: 2389: 2374: 2330: 2310: 1752:his axiom system for set theory 1603:, as does a countably infinite 779:has come to play the role of a 488:Saint Petersburg stock exchange 375:Originally, Cantor's theory of 170: 7030: 6962:The Fractal Geometry of Nature 6369:Tractatus Logico-Philosophicus 5974:Problem of multiple generality 5770:Works by or about Georg Cantor 4847: 4820: 4801: 4768:. Princeton University Press. 4706:Internet version published in 4536:Mendelsohn, Ezra (ed.) (1993) 4250:, p. 404. Translation in 4162:10.1080/0025570X.1979.11976784 4051:Dauben, Joseph Warren (1978). 4006:. Princeton University Press. 4000:Dauben, Joseph Warren (1979). 3864: 3852: 3839: 3823: 3811: 3807: 3721: 3709: 3621:Wallace, David Foster (2003). 2431: 2343:Dauben, Joseph Warren (1979). 2336: 2324: 2321:are useful additional sources. 2303: 2291: 2100: 1623:and the unit square was not a 1112:is the set of limit points of 1035:Peter Gustav Lejeune Dirichlet 822:, subdividing the latter into 642:wrote the plays attributed to 478:Georg Cantor, born in 1845 in 364:of infinities. He defined the 13: 1: 6359:The Principles of Mathematics 5704:. Princeton University Press. 5641:Meschkowski, Herbert (1983). 5057:Primary literature in English 4626: 3607:. The English translation is 3296:American Mathematical Monthly 2498:as "cyclic manic-depression". 2259:Epsilon numbers (mathematics) 2131:'s biography. Writes Dauben: 1281:. His proof differs from the 1244: 830:(uncountably infinite sets). 510:. In 1862 Cantor entered the 49: 8140:People with bipolar disorder 7830:Cardinality of the continuum 6409: 6055:Commutativity of conjunction 5722:. In Edward N. Zalta (ed.). 5159:10.1515/crelle-1878-18788413 5090:Primary literature in German 5025:. Harvard University Press. 4903: 4867:10.1016/0315-0860(81)90070-7 4782: 4483: 4462: 3952: 3900: 3888: 3884: 3795: 3733: 3697: 3005:The Cantor Set Before Cantor 2318: 2224:Cardinality of the continuum 1735:(which was just mentioned), 1656:aleph-one, rather than just 460: 7: 8100:20th-century German writers 6978:Chaos: Making a New Science 4926: 4885:. Academic Press. pp.  4474:For more information, see: 3745:Cantor's proof, which is a 3231: 2586:www-groups.dcs.st-and.ac.uk 2163: 1750:In 1908, Zermelo published 1677:Zermelo–Fraenkel set theory 1173:, and then he noticed that 1088:as its set of zeros, where 985:in his address at the 1900 902:arithmetic of infinite sets 666:German Mathematical Society 356:are more numerous than the 10: 8191: 7793:Formalizations of infinity 7521:von Neumann–Bernays–Gödel 6075:Monotonicity of entailment 4877:Foundations of Mathematics 4840:10.15173/russell.v8i1.1732 4821:Moore, Gregory H. (1988). 4802:Moore, Gregory H. (1982). 4717: 4665:Dauben, Joseph W. (1979). 3916: 3824:Moore and Garciadiego 1981 3812:Moore and Garciadiego 1981 3685: 3497:is given by the function: 3174: 2582:"Georg Cantor (1845-1918)" 1840:L. E. J. Brouwer 1641: 1596:has the same power as the 1510: 1479:equivalent to a subset of 1399:of the power set of a set 1255:Cantor's diagonal argument 983:twenty-three open problems 812:one-to-one correspondences 393:L. E. J. Brouwer 8080:Scientists from Darmstadt 7969:Gottfried Wilhelm Leibniz 7951: 7920: 7792: 7756: 7705: 7585: 7548: 7460: 7350: 7322:One-to-one correspondence 7238: 7179: 7063: 7052: 7038: 6929: 6853: 6802: 6773: 6689: 6659: 6641: 6482: 6417: 6341: 6245: 6200: 6154: 6088: 6047: 6011: 6000: 5964:Idempotency of entailment 5916: 5807:"A history of set theory" 5328:Published separately as: 4927:Suppes, Patrick (1972) . 4783:Hallett, Michael (1986). 4754:10.1080/00033797100203837 4482:, pp. 350–352 and notes; 4347:10.1017/S0269889704000055 3134:10.1007/s00407-005-0102-4 3092:10.1007/s10699-011-9223-1 2254:Derived set (mathematics) 1814:philosophy of mathematics 1537:and the points of a unit 1507:One-to-one correspondence 736:University of St. Andrews 512:Swiss Federal Polytechnic 342:one-to-one correspondence 268: 263: 259: 236: 218: 208: 198: 191: 180: 157: 147: 129:Swiss Federal Polytechnic 121: 107: 88: 59: 41: 34: 5817:University of St Andrews 5795:University of St Andrews 5549:FerreirĂłs, JosĂ© (2007). 5119:10.1515/crll.1874.77.258 4688:Dauben, Joseph (2004) . 4484:Purkert and Ilgauds 1985 4463:Purkert and Ilgauds 1985 4406:On Cantor, Husserl, and 4326:Ferreiros, Jose (2004). 3349:and removes a countable 2538:Reid, Constance (1996). 2480:Arthur Moritz Schönflies 2377:, pp. 8, 11, 12–13. 2319:Purkert and Ilgauds 1985 2284: 2235:in honor of Georg Cantor 2107:Arthur Moritz Schönflies 2052:According to biographer 1920:Johann Baptist Franzelin 847:Henry John Stephen Smith 742:, whose newly published 518:, attending lectures by 425:Johann Baptist Franzelin 401:philosophical objections 7974:August Ferdinand Möbius 7757:Branches of mathematics 7748:Paradoxes of set theory 6323:Willard Van Orman Quine 5871:21 January 2022 at the 5718:Rodych, Victor (2007). 5645:. Vieweg, Braunschweig. 5063:Cantor, Georg (1955) . 4992:Fundamenta Mathematicae 4982:Zermelo, Ernst (1930). 4949:Zermelo, Ernst (1908). 4906:Georg Cantor: 1845–1918 4276:Newstead, Anne (2009). 4141:Snapper, Ernst (1979). 3915:; English translation: 3478:are the union of three 3173:. English translation: 2264:Factorial number system 2063:In a letter written to 1821:and its two offshoots, 1705:well-ordering principle 1573:" (a term he took from 953:{\displaystyle \omega } 925:{\displaystyle \aleph } 532:University of Göttingen 139:University of Göttingen 7280:Constructible universe 7100:Constructibility (V=L) 6970:The Beauty of Fractals 6298:Charles Sanders Peirce 6141:Hypothetical syllogism 5750:Quotations related to 5627:. Chicago: Open Court. 5484:(p. 443–451) and 5466:Cantor, Georg (1932). 5433:Cantor, Georg (1897). 5396:Cantor, Georg (1895). 5141:Cantor, Georg (1878). 5096:Cantor, Georg (1874). 4762:Grattan-Guinness, Ivor 4738:Grattan-Guinness, Ivor 3969:Hedman, Bruce (1993). 3747:proof by contradiction 3069:Foundations of Science 3010:29 August 2022 at the 2607:Georg Cantor 1845-1918 2161: 2121:history of mathematics 2098: 2089: 2047: 2013: 1831:nonconstructive proofs 1558: 1522: 1435: 1423:. Cantor wrote on the 1287:transcendental numbers 1262: 1222:of his contemporaries 991:Charles Sanders Peirce 954: 926: 837:and their relation to 721:) to a meeting of the 702:transfinite set theory 636:Elizabethan literature 632: 538:Teacher and researcher 475: 352:, and proved that the 7938:Möbius transformation 7835:Dedekind-infinite set 7743:Paradoxes of infinity 7738:Infinity (philosophy) 7503:Principia Mathematica 7337:Transfinite induction 7196:(i.e. set difference) 6364:Principia Mathematica 6136:Disjunctive syllogism 6121:modus ponendo tollens 5702:Infinity and the Mind 5691:theoretical physicist 5596:Mathematische Annalen 5592:"Über das Unendliche" 5439:Mathematische Annalen 5402:Mathematische Annalen 5369:Georg Cantor (1891). 5342:Mathematische Annalen 5336:Georg Cantor (1884). 5304:Mathematische Annalen 5298:Georg Cantor (1883). 5271:Mathematische Annalen 5265:Georg Cantor (1883). 5238:Mathematische Annalen 5232:Georg Cantor (1882). 5205:Mathematische Annalen 5199:Georg Cantor (1880). 5172:Mathematische Annalen 5166:Georg Cantor (1879). 5006:10.4064/fm-16-1-29-47 4955:Mathematische Annalen 4589:Grattan-Guinness 1971 4577:Grattan-Guinness 1971 4511:Tannery, Paul (1934) 4486:; the letter is from 4480:Grattan-Guinness 1971 4294:10.5840/acpq200983444 3794:arbitrary choices." ( 3286:Gray, Robert (1994). 3151:on February 15, 2013. 3122:Arch. Hist. Exact Sci 2831:Grattan-Guinness 1971 2776:Grattan-Guinness 1971 2315:Grattan-Guinness 1971 2298:Grattan-Guinness 2000 2231: â€“ award by the 2133: 2093: 2081: 2043: 2007: 1756:well-ordering theorem 1615:, stressing that his 1531:1-to-1 correspondence 1520: 1441:Mathematische Annalen 1433: 1339:Mathematische Annalen 1257:for the existence of 1252: 955: 927: 745:Principia Mathematica 676:Later years and death 628: 542:Cantor submitted his 473: 413:Christian theologians 336:, which has become a 7774:Nonstandard analysis 7577:Burali-Forti paradox 7332:Set-builder notation 7285:Continuum hypothesis 7225:Symmetric difference 6916:Lewis Fry Richardson 6911:Hamid Naderi Yeganeh 6701:Burning Ship fractal 6633:Weierstrass function 6354:Function and Concept 6126:Constructive dilemma 6101:Material implication 5803:Robertson, Edmund F. 5781:Robertson, Edmund F. 5766:at Wikimedia Commons 5733:L'infinito di Cantor 5493:Secondary literature 5478:on February 3, 2014. 4930:Axiomatic Set Theory 4854:Historia Mathematica 4150:Mathematics Magazine 4012:10.2307/j.ctv10crfh1 3688:, pp. 916–917. 3427:}. The set of reals 3204:(4): 112–116 (114). 3113:Ehrlich, P. (2006). 2955:. Dover. p. 1. 2952:Axiomatic Set Theory 2609:. Birkhauser. 1985. 2396:, pp. 120, 143. 2244:Continuum hypothesis 2085:regular just Germain 1903:Habilitationsschrift 1733:Burali-Forti paradox 1650:continuum hypothesis 1644:Continuum hypothesis 1638:Continuum hypothesis 1521:A bijective function 1355:during this period. 1228:Paul du Bois-Reymond 1208:convergent sequences 1199: + 2, ... 1051:trigonometric series 981:as the first of his 974:Continuum hypothesis 944: 916: 711:Burali-Forti paradox 603:Gösta Mittag-Leffler 516:University of Berlin 328:; 3 March [ 134:University of Berlin 7943:Riemannian manifold 7912:Transfinite numbers 7769:Internal set theory 7538:Tarski–Grothendieck 6674:Space-filling curve 6651:Multifractal system 6534:Space-filling curve 6519:Sierpinski triangle 6328:Ludwig Wittgenstein 6131:Destructive dilemma 5959:Well-formed formula 5801:O'Connor, John J.; 5779:O'Connor, John J.; 5677:The Road to Reality 5534:1983SciAm.248f.122D 5522:Scientific American 4933:. New York: Dover. 4708:Journal of the ACMS 4563:Russell, Bertrand. 3873:van Heijenoort 1967 3210:1995SciAm.272d.112M 3198:Scientific American 3062:Katz, Karin Usadi; 2037:; she converted to 2012:, Saint-Petersburg. 1894:F. A. Trendelenburg 1835:constructive proofs 1745:Cesare Burali-Forti 1425:Goldbach conjecture 1374:transfinite numbers 1267:Cantor's 1874 paper 1253:An illustration of 1130:. Because the sets 828:nondenumerable sets 781:foundational theory 690:William Shakespeare 644:William Shakespeare 552:University of Halle 474:Cantor, around 1870 445:awarded Cantor its 407:. Cantor, a devout 397:Ludwig Wittgenstein 377:transfinite numbers 213:University of Halle 8047:History of science 7896:Sphere at infinity 7847:(Complex infinity) 7127:Limitation of size 6901:Aleksandr Lyapunov 6881:Desmond Paul Henry 6845:Self-avoiding walk 6840:Percolation theory 6484:Iterated function 6425:Fractal dimensions 6273:Augustus De Morgan 5844:by JosĂ© FerreirĂłs. 5679:. Alfred A. Knopf. 5608:10.1007/BF01206605 5451:10.1007/bf01444205 5414:10.1007/bf02124929 5354:10.1007/BF01446598 5316:10.1007/bf01446819 5283:10.1007/bf01442612 5250:10.1007/bf01443330 5217:10.1007/bf01446232 5184:10.1007/bf01444101 4967:10.1007/bf01449999 4502:, 1937, E. T. Bell 4478:, p. 1 and notes; 4432:Russell, Bertrand 4335:Science in Context 4171:on August 15, 2012 3326:on 21 January 2022 3038:10.1007/BF01886630 2640:"Cantor biography" 2274:Transfinite number 2206:Mathematics portal 2116:Men of Mathematics 2014: 2010:Vasilievsky Island 1671:and a 1963 one by 1554:-dimensional space 1523: 1436: 1413:ordinal arithmetic 1263: 1204:irrational numbers 1005:on the history of 950: 922: 476: 409:Lutheran Christian 338:fundamental theory 8130:ETH Zurich alumni 7992: 7991: 7886:Point at infinity 7866:Hyperreal numbers 7840:Directed infinity 7805:Absolute infinite 7728:Galileo's paradox 7713:Ananta (infinite) 7658: 7657: 7567:Russell's paradox 7516:Zermelo–Fraenkel 7417:Dedekind-infinite 7290:Diagonal argument 7189:Cartesian product 7046:Set (mathematics) 6998: 6997: 6944:Coastline paradox 6921:WacƂaw SierpiƄski 6906:Benoit Mandelbrot 6830:Fractal landscape 6738:Misiurewicz point 6643:Strange attractor 6524:Apollonian gasket 6514:Sierpinski carpet 6377: 6376: 6241: 6240: 5855: 5762:Media related to 5731:Leonida Lazzari, 5666:Pantheismusstreit 5428:on 23 April 2014. 5080:978-0-486-60045-1 5032:978-0-674-32449-7 4940:978-0-486-61630-8 4919:978-0-8176-1770-7 4896:978-0-12-599662-4 4813:978-1-4613-9480-8 4794:978-0-19-853283-5 4775:978-0-691-05858-0 4742:Annals of Science 4729:978-0-19-853271-2 4680:978-0-691-02447-9 4634:Dauben, Joseph W. 3777:. The function's 3638:978-0-393-00338-3 3480:pairwise disjoint 3374:). Call this set 2555:978-0-387-04999-1 2214:Absolute infinite 2192:Philosophy portal 2058:Annals of Science 2000:Cantor's ancestry 1982:Gottfried Leibniz 1957:of mathematics". 1802:absolute infinite 1741:Russell's paradox 1454:well-ordered sets 1419:and the proof of 1298:algebraic numbers 1283:diagonal argument 763:Mathematical work 719:Russell's paradox 655:diagonal argument 591:Heinrich M. Weber 520:Leopold Kronecker 466:Youth and studies 432:Leopold Kronecker 381:Leopold Kronecker 350:well-ordered sets 277: 276: 193:Scientific career 16:(Redirected from 8182: 8135:German Lutherans 8085:German logicians 8057: 8056: 8055: 8045: 8044: 8043: 8033: 8032: 8031: 8021: 8020: 8019: 8009: 8008: 8000: 7984:Abraham Robinson 7979:Bernhard Riemann 7898:(Kleinian group) 7891:Regular cardinal 7845:Division by zero 7825:Cardinal numbers 7764:Complex analysis 7699: 7685: 7678: 7671: 7662: 7661: 7640:Bertrand Russell 7630:John von Neumann 7615:Abraham Fraenkel 7610:Richard Dedekind 7572:Suslin's problem 7483:Cantor's theorem 7200:De Morgan's laws 7058: 7025: 7018: 7011: 7002: 7001: 6861:Michael Barnsley 6728:Lyapunov fractal 6586:SierpiƄski curve 6539:Blancmange curve 6404: 6397: 6390: 6381: 6380: 6313:Henry M. Sheffer 6303:Bertrand Russell 6268:Richard Dedekind 6152: 6151: 6096:De Morgan's laws 6070:Noncontradiction 6012:Classical logics 6006: 5903: 5896: 5889: 5880: 5879: 5858:non-constructive 5853: 5826:, britannica.com 5819: 5797: 5774:Internet Archive 5761: 5749: 5727: 5705: 5680: 5646: 5628: 5619: 5575: 5572:Naive Set Theory 5554: 5545: 5507: 5479: 5462: 5429: 5424:. Archived from 5392: 5390: 5375: 5365: 5327: 5294: 5261: 5228: 5195: 5162: 5137: 5135: 5102: 5084: 5036: 5017: 5015: 5008: 4988: 4978: 4944: 4923: 4900: 4871: 4869: 4844: 4842: 4817: 4798: 4779: 4757: 4733: 4705: 4703: 4696: 4684: 4672: 4661: 4620: 4617:Grattan-Guinness 4613: 4607: 4602: 4596: 4586: 4580: 4574: 4568: 4561: 4555: 4549: 4543: 4534: 4528: 4522: 4516: 4509: 4503: 4497: 4491: 4472: 4466: 4460: 4449: 4443: 4437: 4430: 4424: 4417: 4411: 4404: 4398: 4392: 4386: 4380: 4374: 4373: 4371: 4332: 4323: 4317: 4316: 4304: 4298: 4297: 4273: 4267: 4261: 4255: 4245: 4239: 4233: 4224: 4223: 4187: 4181: 4180: 4178: 4176: 4170: 4164:. 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Archived from 3119: 3110: 3104: 3103: 3085: 3064:Katz, Mikhail G. 3059: 3050: 3049: 3021: 3015: 3002: 2996: 2988: 2982: 2977: 2971: 2970: 2943: 2937: 2936: 2908: 2899: 2893: 2887: 2881: 2875: 2864: 2858: 2852: 2846: 2840: 2834: 2824: 2818: 2812: 2803: 2797: 2791: 2785: 2779: 2769: 2763: 2754: 2748: 2742: 2736: 2730: 2724: 2723: 2715: 2709: 2708: 2676: 2655: 2654: 2652: 2650: 2636: 2621: 2620: 2603: 2597: 2596: 2594: 2592: 2578: 2572: 2566: 2560: 2559: 2535: 2526: 2520: 2514: 2508: 2499: 2489: 2483: 2473: 2464: 2458: 2449: 2435: 2429: 2423: 2412: 2406: 2397: 2387: 2378: 2372: 2363: 2362: 2350: 2340: 2334: 2328: 2322: 2307: 2301: 2295: 2269:Pairing function 2208: 2203: 2202: 2194: 2189: 2188: 2187: 2180: 2178:Biography portal 2175: 2174: 2173: 2111:Eric Temple Bell 2077:Bertrand Russell 2054:Eric Temple Bell 2031:Austro-Hungarian 1767:John von Neumann 1737:Cantor's paradox 1725:Bertrand Russell 1632:Karl Weierstrass 1561: 1491:are equivalent. 1393:Cantor's theorem 1326:nested intervals 1291:Joseph Liouville 1259:uncountable sets 1212:rational numbers 1195: + 1, 1043:Bernhard Riemann 1039:Rudolf Lipschitz 1033:that had eluded 999:Jacques Hadamard 963: 959: 957: 956: 951: 931: 929: 928: 923: 898:Cantor's theorem 863:rational numbers 845:, discovered by 740:Bertrand Russell 715:Cantor's paradox 620:Acta Mathematica 607:Acta Mathematica 568:Richard Dedekind 524:Karl Weierstrass 480:Saint Petersburg 436:bipolar disorder 327: 322: 315: 310: 309: 306: 305: 302: 299: 296: 293: 290: 273: 251:Karl Weierstrass 238:Doctoral advisor 232: 174: 172: 95: 78:Saint Petersburg 73: 71: 54: 51: 46: 32: 31: 21: 8190: 8189: 8185: 8184: 8183: 8181: 8180: 8179: 8065: 8064: 8063: 8053: 8051: 8041: 8039: 8029: 8027: 8017: 8015: 8003: 7995: 7993: 7988: 7947: 7916: 7907:Surreal numbers 7881:Ordinal numbers 7810:Actual infinity 7788: 7752: 7701: 7695: 7689: 7659: 7654: 7581: 7560: 7544: 7509:New Foundations 7456: 7346: 7265:Cardinal number 7248: 7234: 7175: 7059: 7050: 7034: 7029: 6999: 6994: 6925: 6876:Felix Hausdorff 6849: 6813:Brownian motion 6798: 6769: 6692: 6685: 6655: 6637: 6628:Pythagoras tree 6485: 6478: 6474:Self-similarity 6418:Characteristics 6413: 6408: 6378: 6373: 6349:Begriffsschrift 6337: 6333:Jan Ɓukasiewicz 6253:Bernard Bolzano 6237: 6208:Double negation 6196: 6167:Double negation 6150: 6084: 6060:Excluded middle 6043: 6007: 5998: 5912: 5910:Classical logic 5907: 5873:Wayback Machine 5742: 5495: 5388: 5373: 5153:(84): 242–258. 5133: 5113:(77): 258–262. 5100: 5092: 5081: 5065:Philip Jourdain 5059: 5043: 5033: 5013: 4986: 4941: 4920: 4897: 4814: 4795: 4776: 4730: 4701: 4694: 4681: 4650:10.2307/2708842 4629: 4624: 4623: 4614: 4610: 4603: 4599: 4587: 4583: 4575: 4571: 4562: 4558: 4550: 4546: 4535: 4531: 4523: 4519: 4510: 4506: 4498: 4494: 4473: 4469: 4461: 4452: 4444: 4440: 4431: 4427: 4418: 4414: 4405: 4401: 4393: 4389: 4381: 4377: 4369: 4330: 4324: 4320: 4305: 4301: 4274: 4270: 4262: 4258: 4246: 4242: 4234: 4227: 4188: 4184: 4174: 4172: 4168: 4145: 4139: 4135: 4127: 4123: 4115: 4111: 4097: 4095: 4049: 4045: 4022: 3998: 3994: 3984: 3982: 3967: 3963: 3951: 3947: 3939: 3935: 3927: 3923: 3911: 3907: 3899: 3895: 3883: 3879: 3867:, pp. 158–160. 3863: 3859: 3850: 3846: 3838: 3834: 3822: 3818: 3806: 3802: 3798:, pp. 169–170.) 3744: 3740: 3732: 3728: 3720: 3716: 3708: 3704: 3696: 3692: 3680: 3676: 3666: 3662: 3650: 3646: 3639: 3619: 3615: 3599: 3595: 3587: 3583: 3575: 3571: 3561: 3555: 3540: 3534: 3519: 3488: 3468: 3461: 3456:} âˆȘ { 3454: 3448: 3440: 3426: 3417:} âˆȘ { 3416: 3405: 3397: 3391: 3380: 3365: 3358: 3344: 3340: 3329: 3327: 3323: 3309:10.2307/2975129 3290: 3279: 3275: 3264:equations with 3255: 3251: 3242: 3238: 3229: 3225: 3185: 3181: 3169: 3165: 3160: 3156: 3148: 3117: 3111: 3107: 3060: 3053: 3022: 3018: 3012:Wayback Machine 3003: 2999: 2989: 2985: 2978: 2974: 2963: 2947:Suppes, Patrick 2944: 2940: 2925:10.2307/3026799 2909: 2902: 2894: 2890: 2882: 2878: 2874:, pp. 248, 283. 2865: 2861: 2853: 2849: 2841: 2837: 2825: 2821: 2813: 2806: 2798: 2794: 2786: 2782: 2770: 2766: 2755: 2751: 2743: 2739: 2731: 2727: 2716: 2712: 2697: 2677: 2658: 2648: 2646: 2638: 2637: 2624: 2617: 2605: 2604: 2600: 2590: 2588: 2580: 2579: 2575: 2567: 2563: 2556: 2536: 2529: 2521: 2517: 2509: 2502: 2490: 2486: 2474: 2467: 2459: 2452: 2436: 2432: 2424: 2415: 2407: 2400: 2388: 2381: 2373: 2366: 2359: 2341: 2337: 2329: 2325: 2308: 2304: 2296: 2292: 2287: 2239:Cardinal number 2204: 2197: 2190: 2185: 2183: 2176: 2171: 2169: 2166: 2149:du Bois Reymond 2103: 2075:In a letter to 2022:Napoleonic Wars 2002: 1986:Bernard Bolzano 1978:George Berkeley 1916:Joseph Hontheim 1842:and especially 1789:actual infinity 1785: 1760:axiom of choice 1718:Cantor avoided 1693: 1681:axiom of choice 1646: 1640: 1591:Euclidean space 1583:natural numbers 1515: 1509: 1497:Felix Bernstein 1471:to a subset of 1417:Halting problem 1382:Ordinal numbers 1349:actual infinity 1323: 1316: 1309: 1247: 1186: 1179: 1172: 1163: 1156: 1149: 1138: 1129: 1120: 1111: 1094: 1087: 1072: 1031:an open problem 1015: 1003:Philip Jourdain 961: 945: 942: 941: 917: 914: 913: 804:natural numbers 765: 686:Baconian theory 678: 540: 468: 463: 447:Sylvester Medal 417:neo-Scholastics 387:and later from 358:natural numbers 320: 313: 287: 283: 255: 230: 185:Sylvester Medal 176: 173: 1874) 168: 164: 143: 122:Alma mater 103: 97: 93: 84: 75: 69: 67: 66: 65: 55: 52: 37: 28: 23: 22: 15: 12: 11: 5: 8188: 8178: 8177: 8172: 8167: 8162: 8157: 8152: 8147: 8142: 8137: 8132: 8127: 8122: 8117: 8112: 8107: 8102: 8097: 8092: 8087: 8082: 8077: 8062: 8061: 8049: 8037: 8025: 8013: 7990: 7989: 7987: 7986: 7981: 7976: 7971: 7966: 7961: 7955: 7953: 7952:Mathematicians 7949: 7948: 7946: 7945: 7940: 7935: 7930: 7924: 7922: 7918: 7917: 7915: 7914: 7909: 7904: 7899: 7893: 7888: 7883: 7878: 7873: 7868: 7863: 7858: 7856:Gimel function 7853: 7851:Epsilon number 7848: 7842: 7837: 7832: 7827: 7822: 7817: 7812: 7807: 7802: 7796: 7794: 7790: 7789: 7787: 7786: 7781: 7776: 7771: 7766: 7760: 7758: 7754: 7753: 7751: 7750: 7745: 7740: 7735: 7730: 7725: 7720: 7715: 7709: 7707: 7703: 7702: 7688: 7687: 7680: 7673: 7665: 7656: 7655: 7653: 7652: 7647: 7645:Thoralf Skolem 7642: 7637: 7632: 7627: 7622: 7617: 7612: 7607: 7602: 7597: 7591: 7589: 7583: 7582: 7580: 7579: 7574: 7569: 7563: 7561: 7559: 7558: 7555: 7549: 7546: 7545: 7543: 7542: 7541: 7540: 7535: 7530: 7529: 7528: 7513: 7512: 7511: 7499: 7498: 7497: 7486: 7485: 7480: 7475: 7470: 7464: 7462: 7458: 7457: 7455: 7454: 7449: 7444: 7439: 7430: 7425: 7420: 7410: 7405: 7404: 7403: 7398: 7393: 7383: 7373: 7368: 7363: 7357: 7355: 7348: 7347: 7345: 7344: 7339: 7334: 7329: 7327:Ordinal number 7324: 7319: 7314: 7309: 7308: 7307: 7302: 7292: 7287: 7282: 7277: 7272: 7262: 7257: 7251: 7249: 7247: 7246: 7243: 7239: 7236: 7235: 7233: 7232: 7227: 7222: 7217: 7212: 7207: 7205:Disjoint union 7202: 7197: 7191: 7185: 7183: 7177: 7176: 7174: 7173: 7172: 7171: 7166: 7155: 7154: 7152:Martin's axiom 7149: 7144: 7139: 7134: 7129: 7124: 7119: 7117:Extensionality 7114: 7113: 7112: 7102: 7097: 7096: 7095: 7090: 7085: 7075: 7069: 7067: 7061: 7060: 7053: 7051: 7049: 7048: 7042: 7040: 7036: 7035: 7028: 7027: 7020: 7013: 7005: 6996: 6995: 6993: 6992: 6987: 6982: 6974: 6966: 6958: 6953: 6948: 6947: 6946: 6933: 6931: 6927: 6926: 6924: 6923: 6918: 6913: 6908: 6903: 6898: 6893: 6891:Helge von Koch 6888: 6883: 6878: 6873: 6868: 6863: 6857: 6855: 6851: 6850: 6848: 6847: 6842: 6837: 6832: 6827: 6826: 6825: 6823:Brownian motor 6820: 6809: 6807: 6800: 6799: 6797: 6796: 6794:Pickover stalk 6791: 6786: 6780: 6778: 6771: 6770: 6768: 6767: 6762: 6757: 6752: 6750:Newton fractal 6747: 6742: 6741: 6740: 6733:Mandelbrot set 6730: 6725: 6724: 6723: 6718: 6716:Newton fractal 6713: 6703: 6697: 6695: 6687: 6686: 6684: 6683: 6682: 6681: 6671: 6669:Fractal canopy 6665: 6663: 6657: 6656: 6654: 6653: 6647: 6645: 6639: 6638: 6636: 6635: 6630: 6625: 6620: 6615: 6613:Vicsek fractal 6610: 6605: 6600: 6595: 6594: 6593: 6588: 6583: 6578: 6573: 6568: 6563: 6558: 6553: 6552: 6551: 6541: 6531: 6529:Fibonacci word 6526: 6521: 6516: 6511: 6506: 6504:Koch snowflake 6501: 6496: 6490: 6488: 6480: 6479: 6477: 6476: 6471: 6466: 6465: 6464: 6459: 6454: 6449: 6444: 6443: 6442: 6432: 6421: 6419: 6415: 6414: 6407: 6406: 6399: 6392: 6384: 6375: 6374: 6372: 6371: 6366: 6361: 6356: 6351: 6345: 6343: 6339: 6338: 6336: 6335: 6330: 6325: 6320: 6315: 6310: 6308:Ernst Schröder 6305: 6300: 6295: 6293:Giuseppe Peano 6290: 6285: 6280: 6275: 6270: 6265: 6260: 6255: 6249: 6247: 6243: 6242: 6239: 6238: 6236: 6235: 6230: 6225: 6220: 6215: 6210: 6204: 6202: 6198: 6197: 6195: 6194: 6189: 6184: 6179: 6174: 6169: 6164: 6158: 6156: 6149: 6148: 6143: 6138: 6133: 6128: 6123: 6118: 6113: 6108: 6103: 6098: 6092: 6090: 6086: 6085: 6083: 6082: 6077: 6072: 6067: 6062: 6057: 6051: 6049: 6045: 6044: 6042: 6041: 6036: 6031: 6026: 6021: 6015: 6013: 6009: 6008: 6001: 5999: 5997: 5996: 5991: 5986: 5981: 5976: 5971: 5966: 5961: 5956: 5951: 5949:Truth function 5946: 5941: 5936: 5931: 5926: 5920: 5918: 5914: 5913: 5906: 5905: 5898: 5891: 5883: 5877: 5876: 5845: 5827: 5821: 5798: 5785:"Georg Cantor" 5776: 5767: 5755: 5741: 5740:External links 5738: 5737: 5736: 5729: 5715: 5694: 5673:Penrose, Roger 5669: 5660:(4): 532–553, 5647: 5638: 5620: 5588:Hilbert, David 5584: 5564: 5546: 5528:(6): 122–131. 5517: 5500:Aczel, Amir D. 5494: 5491: 5490: 5489: 5463: 5445:(2): 207–246. 5430: 5408:(4): 481–512. 5393: 5366: 5348:(4): 453–488. 5333: 5310:(4): 545–591. 5295: 5262: 5244:(1): 113–121. 5229: 5211:(3): 355–358. 5196: 5163: 5138: 5091: 5088: 5087: 5086: 5079: 5058: 5055: 5054: 5053: 5042: 5039: 5038: 5037: 5031: 5018: 4979: 4961:(2): 261–281. 4946: 4939: 4924: 4918: 4901: 4895: 4872: 4860:(3): 319–350. 4845: 4818: 4812: 4799: 4793: 4780: 4774: 4758: 4748:(4): 345–391. 4734: 4728: 4715: 4685: 4679: 4662: 4628: 4625: 4622: 4621: 4608: 4597: 4581: 4569: 4556: 4544: 4529: 4517: 4504: 4492: 4467: 4450: 4438: 4425: 4412: 4399: 4387: 4375: 4341:(1–2): 49–83. 4318: 4299: 4288:(4): 533–553. 4268: 4256: 4240: 4225: 4204:10.1086/383692 4198:(2): 263–295. 4182: 4156:(4): 207–216. 4133: 4121: 4109: 4069:10.1086/352113 4043: 4020: 3992: 3961: 3957:Thomas Aquinas 3945: 3933: 3921: 3905: 3903:, pp. 291–292. 3893: 3877: 3857: 3844: 3832: 3816: 3814:, pp. 330–331. 3800: 3738: 3736:, pp. 166–169. 3726: 3714: 3702: 3690: 3674: 3670:W. Hugh Woodin 3660: 3654:, pp. 69, 324 3644: 3637: 3613: 3593: 3581: 3569: 3559: 3556:) =  3550: 3538: 3535:) =  3528: 3517: 3505:) =  3486: 3466: 3459: 3452: 3449: âˆȘ { 3446: 3438: 3435: âˆȘ { 3421: 3410: 3406: âˆȘ { 3403: 3395: 3392: âˆȘ { 3389: 3378: 3372: / n 3363: 3356: 3338: 3303:(9): 819–832. 3273: 3249: 3236: 3223: 3179: 3177:, pp. 840–843. 3163: 3154: 3105: 3051: 3016: 2997: 2983: 2972: 2961: 2938: 2900: 2888: 2886:, pp. 283–284. 2876: 2859: 2847: 2845:, pp. 281–283. 2835: 2819: 2804: 2792: 2780: 2778:, pp. 354–355. 2764: 2749: 2737: 2725: 2710: 2696:978-0787638139 2695: 2656: 2622: 2616:978-3764317706 2615: 2598: 2573: 2561: 2554: 2527: 2515: 2500: 2496:mental illness 2484: 2465: 2450: 2430: 2413: 2398: 2379: 2364: 2357: 2335: 2323: 2302: 2289: 2288: 2286: 2283: 2282: 2281: 2276: 2271: 2266: 2261: 2256: 2251: 2246: 2241: 2236: 2226: 2221: 2216: 2210: 2209: 2195: 2181: 2165: 2162: 2102: 2099: 2035:Roman Catholic 2001: 1998: 1974:RenĂ© Descartes 1948:infinitesimals 1941:Edmund Husserl 1844:Henri PoincarĂ© 1819:constructivism 1784: 1781: 1692: 1689: 1642:Main article: 1639: 1636: 1579:countable sets 1525:Cantor's 1874 1511:Main article: 1508: 1505: 1493:Ernst Schröder 1464:are sets with 1321: 1314: 1307: 1246: 1243: 1239:infinitesimals 1220:infinitesimals 1184: 1177: 1168: 1161: 1154: 1147: 1134: 1125: 1116: 1107: 1095:is the set of 1092: 1085: 1068: 1014: 1011: 949: 921: 764: 761: 753:malnourishment 677: 674: 564:Harz mountains 539: 536: 467: 464: 462: 459: 415:(particularly 385:Henri PoincarĂ© 275: 274: 266: 265: 261: 260: 257: 256: 254: 253: 248: 242: 240: 234: 233: 222: 216: 215: 210: 206: 205: 200: 196: 195: 189: 188: 182: 178: 177: 166: 163:Vally Guttmann 162: 161: 159: 155: 154: 149: 148:Known for 145: 144: 142: 141: 136: 131: 125: 123: 119: 118: 109: 105: 104: 98: 96:(aged 72) 92:6 January 1918 90: 86: 85: 82:Russian Empire 76: 63: 61: 57: 56: 47: 39: 38: 35: 26: 9: 6: 4: 3: 2: 8187: 8176: 8173: 8171: 8168: 8166: 8163: 8161: 8158: 8156: 8153: 8151: 8148: 8146: 8143: 8141: 8138: 8136: 8133: 8131: 8128: 8126: 8123: 8121: 8118: 8116: 8113: 8111: 8108: 8106: 8103: 8101: 8098: 8096: 8093: 8091: 8090:Set theorists 8088: 8086: 8083: 8081: 8078: 8076: 8073: 8072: 8070: 8060: 8050: 8048: 8038: 8036: 8026: 8024: 8014: 8012: 8007: 8002: 8001: 7998: 7985: 7982: 7980: 7977: 7975: 7972: 7970: 7967: 7965: 7964:David Hilbert 7962: 7960: 7957: 7956: 7954: 7950: 7944: 7941: 7939: 7936: 7934: 7931: 7929: 7926: 7925: 7923: 7919: 7913: 7910: 7908: 7905: 7903: 7900: 7897: 7894: 7892: 7889: 7887: 7884: 7882: 7879: 7877: 7876:Infinitesimal 7874: 7872: 7869: 7867: 7864: 7862: 7861:Hilbert space 7859: 7857: 7854: 7852: 7849: 7846: 7843: 7841: 7838: 7836: 7833: 7831: 7828: 7826: 7823: 7821: 7818: 7816: 7813: 7811: 7808: 7806: 7803: 7801: 7798: 7797: 7795: 7791: 7785: 7782: 7780: 7777: 7775: 7772: 7770: 7767: 7765: 7762: 7761: 7759: 7755: 7749: 7746: 7744: 7741: 7739: 7736: 7734: 7731: 7729: 7726: 7724: 7721: 7719: 7716: 7714: 7711: 7710: 7708: 7704: 7698: 7693: 7686: 7681: 7679: 7674: 7672: 7667: 7666: 7663: 7651: 7650:Ernst Zermelo 7648: 7646: 7643: 7641: 7638: 7636: 7635:Willard Quine 7633: 7631: 7628: 7626: 7623: 7621: 7618: 7616: 7613: 7611: 7608: 7606: 7603: 7601: 7598: 7596: 7593: 7592: 7590: 7588: 7587:Set theorists 7584: 7578: 7575: 7573: 7570: 7568: 7565: 7564: 7562: 7556: 7554: 7551: 7550: 7547: 7539: 7536: 7534: 7533:Kripke–Platek 7531: 7527: 7524: 7523: 7522: 7519: 7518: 7517: 7514: 7510: 7507: 7506: 7505: 7504: 7500: 7496: 7493: 7492: 7491: 7488: 7487: 7484: 7481: 7479: 7476: 7474: 7471: 7469: 7466: 7465: 7463: 7459: 7453: 7450: 7448: 7445: 7443: 7440: 7438: 7436: 7431: 7429: 7426: 7424: 7421: 7418: 7414: 7411: 7409: 7406: 7402: 7399: 7397: 7394: 7392: 7389: 7388: 7387: 7384: 7381: 7377: 7374: 7372: 7369: 7367: 7364: 7362: 7359: 7358: 7356: 7353: 7349: 7343: 7340: 7338: 7335: 7333: 7330: 7328: 7325: 7323: 7320: 7318: 7315: 7313: 7310: 7306: 7303: 7301: 7298: 7297: 7296: 7293: 7291: 7288: 7286: 7283: 7281: 7278: 7276: 7273: 7270: 7266: 7263: 7261: 7258: 7256: 7253: 7252: 7250: 7244: 7241: 7240: 7237: 7231: 7228: 7226: 7223: 7221: 7218: 7216: 7213: 7211: 7208: 7206: 7203: 7201: 7198: 7195: 7192: 7190: 7187: 7186: 7184: 7182: 7178: 7170: 7169:specification 7167: 7165: 7162: 7161: 7160: 7157: 7156: 7153: 7150: 7148: 7145: 7143: 7140: 7138: 7135: 7133: 7130: 7128: 7125: 7123: 7120: 7118: 7115: 7111: 7108: 7107: 7106: 7103: 7101: 7098: 7094: 7091: 7089: 7086: 7084: 7081: 7080: 7079: 7076: 7074: 7071: 7070: 7068: 7066: 7062: 7057: 7047: 7044: 7043: 7041: 7037: 7033: 7026: 7021: 7019: 7014: 7012: 7007: 7006: 7003: 6991: 6988: 6986: 6983: 6980: 6979: 6975: 6972: 6971: 6967: 6964: 6963: 6959: 6957: 6954: 6952: 6949: 6945: 6942: 6941: 6939: 6935: 6934: 6932: 6928: 6922: 6919: 6917: 6914: 6912: 6909: 6907: 6904: 6902: 6899: 6897: 6894: 6892: 6889: 6887: 6884: 6882: 6879: 6877: 6874: 6872: 6869: 6867: 6864: 6862: 6859: 6858: 6856: 6852: 6846: 6843: 6841: 6838: 6836: 6833: 6831: 6828: 6824: 6821: 6819: 6818:Brownian tree 6816: 6815: 6814: 6811: 6810: 6808: 6805: 6801: 6795: 6792: 6790: 6787: 6785: 6782: 6781: 6779: 6776: 6772: 6766: 6763: 6761: 6758: 6756: 6753: 6751: 6748: 6746: 6745:Multibrot set 6743: 6739: 6736: 6735: 6734: 6731: 6729: 6726: 6722: 6721:Douady rabbit 6719: 6717: 6714: 6712: 6709: 6708: 6707: 6704: 6702: 6699: 6698: 6696: 6694: 6688: 6680: 6677: 6676: 6675: 6672: 6670: 6667: 6666: 6664: 6662: 6658: 6652: 6649: 6648: 6646: 6644: 6640: 6634: 6631: 6629: 6626: 6624: 6621: 6619: 6616: 6614: 6611: 6609: 6606: 6604: 6601: 6599: 6596: 6592: 6591:Z-order curve 6589: 6587: 6584: 6582: 6579: 6577: 6574: 6572: 6569: 6567: 6564: 6562: 6561:Hilbert curve 6559: 6557: 6554: 6550: 6547: 6546: 6545: 6544:De Rham curve 6542: 6540: 6537: 6536: 6535: 6532: 6530: 6527: 6525: 6522: 6520: 6517: 6515: 6512: 6510: 6509:Menger sponge 6507: 6505: 6502: 6500: 6497: 6495: 6494:Barnsley fern 6492: 6491: 6489: 6487: 6481: 6475: 6472: 6470: 6467: 6463: 6460: 6458: 6455: 6453: 6450: 6448: 6445: 6441: 6438: 6437: 6436: 6433: 6431: 6428: 6427: 6426: 6423: 6422: 6420: 6416: 6412: 6405: 6400: 6398: 6393: 6391: 6386: 6385: 6382: 6370: 6367: 6365: 6362: 6360: 6357: 6355: 6352: 6350: 6347: 6346: 6344: 6340: 6334: 6331: 6329: 6326: 6324: 6321: 6319: 6318:Alfred Tarski 6316: 6314: 6311: 6309: 6306: 6304: 6301: 6299: 6296: 6294: 6291: 6289: 6286: 6284: 6281: 6279: 6278:Gottlob Frege 6276: 6274: 6271: 6269: 6266: 6264: 6261: 6259: 6256: 6254: 6251: 6250: 6248: 6244: 6234: 6231: 6229: 6226: 6224: 6223:Biconditional 6221: 6219: 6216: 6214: 6211: 6209: 6206: 6205: 6203: 6199: 6193: 6190: 6188: 6185: 6183: 6182:Biconditional 6180: 6178: 6175: 6173: 6170: 6168: 6165: 6163: 6160: 6159: 6157: 6153: 6147: 6144: 6142: 6139: 6137: 6134: 6132: 6129: 6127: 6124: 6122: 6119: 6117: 6116:modus tollens 6114: 6112: 6109: 6107: 6106:Transposition 6104: 6102: 6099: 6097: 6094: 6093: 6091: 6087: 6081: 6078: 6076: 6073: 6071: 6068: 6066: 6063: 6061: 6058: 6056: 6053: 6052: 6050: 6046: 6040: 6037: 6035: 6032: 6030: 6027: 6025: 6024:Propositional 6022: 6020: 6017: 6016: 6014: 6010: 6005: 5995: 5992: 5990: 5987: 5985: 5982: 5980: 5979:Associativity 5977: 5975: 5972: 5970: 5967: 5965: 5962: 5960: 5957: 5955: 5952: 5950: 5947: 5945: 5942: 5940: 5937: 5935: 5932: 5930: 5927: 5925: 5922: 5921: 5919: 5915: 5911: 5904: 5899: 5897: 5892: 5890: 5885: 5884: 5881: 5874: 5870: 5867: 5863: 5859: 5852: 5851: 5846: 5843: 5839: 5835: 5831: 5828: 5825: 5822: 5818: 5814: 5813: 5808: 5804: 5799: 5796: 5792: 5791: 5786: 5782: 5777: 5775: 5771: 5768: 5765: 5760: 5756: 5753: 5748: 5744: 5743: 5734: 5730: 5725: 5721: 5716: 5713: 5712:0-553-25531-2 5709: 5703: 5699: 5695: 5692: 5688: 5687:0-679-77631-1 5684: 5678: 5674: 5670: 5667: 5663: 5659: 5655: 5651: 5648: 5644: 5639: 5636: 5635:0-8126-9538-0 5632: 5626: 5621: 5617: 5613: 5609: 5605: 5601: 5597: 5593: 5589: 5585: 5583: 5582:3-540-90092-6 5579: 5573: 5569: 5565: 5562: 5561:3-7643-8349-6 5558: 5552: 5547: 5543: 5539: 5535: 5531: 5527: 5523: 5518: 5515: 5514:0-7607-7778-0 5511: 5505: 5501: 5497: 5496: 5487: 5483: 5477: 5473: 5469: 5468:Ernst Zermelo 5464: 5460: 5456: 5452: 5448: 5444: 5440: 5436: 5431: 5427: 5423: 5419: 5415: 5411: 5407: 5403: 5399: 5394: 5387: 5383: 5379: 5372: 5367: 5363: 5359: 5355: 5351: 5347: 5343: 5339: 5334: 5331: 5325: 5321: 5317: 5313: 5309: 5305: 5301: 5296: 5292: 5288: 5284: 5280: 5276: 5272: 5268: 5263: 5259: 5255: 5251: 5247: 5243: 5239: 5235: 5230: 5226: 5222: 5218: 5214: 5210: 5206: 5202: 5197: 5193: 5189: 5185: 5181: 5177: 5173: 5169: 5164: 5160: 5156: 5152: 5148: 5144: 5139: 5132: 5128: 5124: 5120: 5116: 5112: 5108: 5107: 5099: 5094: 5093: 5082: 5076: 5072: 5071: 5066: 5061: 5060: 5052: 5050: 5049:§ Biographies 5045: 5044: 5034: 5028: 5024: 5019: 5012: 5007: 5002: 4998: 4994: 4993: 4985: 4980: 4976: 4972: 4968: 4964: 4960: 4956: 4952: 4947: 4942: 4936: 4932: 4931: 4925: 4921: 4915: 4911: 4907: 4902: 4898: 4892: 4888: 4884: 4883: 4878: 4873: 4868: 4863: 4859: 4855: 4851: 4846: 4841: 4836: 4832: 4828: 4824: 4819: 4815: 4809: 4805: 4800: 4796: 4790: 4786: 4781: 4777: 4771: 4767: 4763: 4759: 4755: 4751: 4747: 4743: 4739: 4735: 4731: 4725: 4721: 4716: 4713: 4709: 4700: 4693: 4692: 4686: 4682: 4676: 4671: 4670: 4663: 4659: 4655: 4651: 4647: 4644:(1): 85–108. 4643: 4639: 4635: 4631: 4630: 4618: 4612: 4606: 4601: 4594: 4590: 4585: 4578: 4573: 4566: 4565:Autobiography 4560: 4553: 4548: 4541: 4540: 4533: 4526: 4521: 4514: 4508: 4501: 4496: 4489: 4485: 4481: 4477: 4471: 4464: 4459: 4457: 4455: 4447: 4442: 4435: 4429: 4422: 4416: 4409: 4408:Gottlob Frege 4403: 4396: 4391: 4384: 4379: 4368: 4364: 4360: 4356: 4352: 4348: 4344: 4340: 4336: 4329: 4322: 4314: 4310: 4303: 4295: 4291: 4287: 4283: 4279: 4272: 4265: 4260: 4253: 4249: 4244: 4237: 4232: 4230: 4221: 4217: 4213: 4209: 4205: 4201: 4197: 4193: 4186: 4167: 4163: 4159: 4155: 4151: 4144: 4137: 4130: 4125: 4118: 4113: 4106: 4094: 4090: 4086: 4082: 4078: 4074: 4070: 4066: 4062: 4058: 4054: 4047: 4039: 4035: 4031: 4027: 4023: 4021:9780691024479 4017: 4013: 4009: 4005: 4004: 3996: 3980: 3976: 3972: 3965: 3958: 3954: 3949: 3942: 3937: 3930: 3925: 3918: 3914: 3909: 3902: 3897: 3890: 3886: 3881: 3874: 3870: 3866: 3861: 3855:, pp. 85–141. 3854: 3848: 3841: 3836: 3829: 3825: 3820: 3813: 3810:, pp. 52–53; 3809: 3804: 3797: 3793: 3788: 3785:, so the set 3784: 3780: 3776: 3772: 3768: 3764: 3760: 3756: 3752: 3748: 3742: 3735: 3730: 3723: 3718: 3711: 3706: 3699: 3694: 3687: 3683: 3678: 3671: 3664: 3657: 3653: 3648: 3640: 3634: 3630: 3626: 3625: 3617: 3610: 3606: 3605:Cantor (1897) 3602: 3601:Cantor (1895) 3597: 3590: 3585: 3578: 3573: 3567:, p. 4). 3566: 3562: 3554: 3549: 3545: 3541: 3532: 3527: 3523: 3516: 3513: âˆˆ  3512: 3508: 3504: 3500: 3496: 3492: 3485: 3481: 3477: 3473: 3469: 3462: 3455: 3445: 3441: 3434: 3430: 3425: 3420: 3414: 3409: 3402: 3398: 3388: 3384: 3377: 3373: 3371: 3367: =  3366: 3359: 3352: 3348: 3342: 3322: 3318: 3314: 3310: 3306: 3302: 3298: 3297: 3289: 3283: 3277: 3270: 3267: 3263: 3259: 3253: 3246: 3240: 3233: 3227: 3219: 3215: 3211: 3207: 3203: 3199: 3193: 3189: 3183: 3176: 3172: 3167: 3158: 3147: 3143: 3139: 3135: 3131: 3127: 3123: 3116: 3109: 3101: 3097: 3093: 3089: 3084: 3079: 3075: 3071: 3070: 3065: 3058: 3056: 3047: 3043: 3039: 3035: 3031: 3027: 3020: 3013: 3009: 3006: 3001: 2993: 2992:countable set 2987: 2981: 2976: 2969: 2964: 2962:9780486616308 2958: 2954: 2953: 2948: 2942: 2934: 2930: 2926: 2922: 2918: 2914: 2907: 2905: 2897: 2892: 2885: 2880: 2873: 2869: 2863: 2856: 2851: 2844: 2839: 2832: 2828: 2823: 2816: 2811: 2809: 2801: 2796: 2789: 2784: 2777: 2773: 2768: 2762: 2758: 2753: 2746: 2741: 2734: 2729: 2721: 2714: 2706: 2702: 2698: 2692: 2688: 2684: 2683: 2675: 2673: 2671: 2669: 2667: 2665: 2663: 2661: 2645: 2641: 2635: 2633: 2631: 2629: 2627: 2618: 2612: 2608: 2602: 2587: 2583: 2577: 2570: 2565: 2557: 2551: 2547: 2543: 2542: 2534: 2532: 2524: 2523:Hilbert (1926 2519: 2512: 2507: 2505: 2497: 2493: 2488: 2481: 2477: 2472: 2470: 2462: 2457: 2455: 2447: 2443: 2439: 2434: 2427: 2422: 2420: 2418: 2410: 2405: 2403: 2395: 2391: 2386: 2384: 2376: 2371: 2369: 2360: 2358:9780691024479 2354: 2349: 2348: 2339: 2332: 2327: 2320: 2316: 2312: 2306: 2299: 2294: 2290: 2280: 2277: 2275: 2272: 2270: 2267: 2265: 2262: 2260: 2257: 2255: 2252: 2250: 2249:Countable set 2247: 2245: 2242: 2240: 2237: 2234: 2230: 2227: 2225: 2222: 2220: 2217: 2215: 2212: 2211: 2207: 2201: 2196: 2193: 2182: 2179: 2168: 2160: 2158: 2154: 2150: 2146: 2142: 2141:infinitesimal 2138: 2132: 2130: 2129:Joseph Dauben 2126: 2122: 2118: 2117: 2112: 2108: 2097: 2092: 2088: 2086: 2080: 2078: 2073: 2071: 2066: 2061: 2059: 2055: 2050: 2046: 2042: 2040: 2039:Protestantism 2036: 2032: 2027: 2023: 2019: 2011: 2006: 1997: 1995: 1991: 1990:Immanuel Kant 1987: 1983: 1979: 1975: 1971: 1970:contradiction 1966: 1963: 1958: 1956: 1953: 1949: 1944: 1942: 1937: 1931: 1929: 1928:Pope Leo XIII 1925: 1921: 1917: 1913: 1907: 1905: 1904: 1899: 1895: 1891: 1886: 1884: 1880: 1876: 1871: 1868: 1863: 1861: 1857: 1853: 1849: 1845: 1841: 1836: 1832: 1828: 1824: 1820: 1815: 1810: 1808: 1807:Joseph Dauben 1803: 1799: 1794: 1790: 1780: 1778: 1773: 1768: 1763: 1761: 1757: 1753: 1748: 1746: 1742: 1738: 1734: 1730: 1726: 1721: 1716: 1714: 1708: 1706: 1700: 1698: 1688: 1686: 1682: 1678: 1674: 1670: 1665: 1663: 1659: 1655: 1651: 1645: 1635: 1633: 1628: 1626: 1622: 1621:unit interval 1618: 1614: 1610: 1607:of copies of 1606: 1602: 1599: 1595: 1592: 1589:-dimensional 1588: 1584: 1580: 1576: 1575:Jakob Steiner 1572: 1567: 1565: 1560: 1555: 1553: 1548: 1544: 1540: 1536: 1532: 1528: 1519: 1514: 1504: 1502: 1498: 1494: 1490: 1486: 1482: 1478: 1474: 1470: 1467: 1463: 1459: 1455: 1451: 1447: 1443: 1442: 1432: 1428: 1426: 1422: 1418: 1414: 1410: 1406: 1402: 1398: 1394: 1389: 1387: 1383: 1379: 1375: 1371: 1367: 1363: 1362: 1356: 1354: 1350: 1346: 1341: 1340: 1334: 1331: 1327: 1320: 1313: 1306: 1303: 1299: 1294: 1292: 1288: 1284: 1280: 1276: 1272: 1268: 1260: 1256: 1251: 1242: 1240: 1236: 1233: 1229: 1225: 1221: 1217: 1216:Dedekind cuts 1213: 1209: 1205: 1200: 1198: 1194: 1190: 1183: 1176: 1171: 1167: 1160: 1153: 1146: 1142: 1137: 1133: 1128: 1124: 1119: 1115: 1110: 1106: 1102: 1098: 1091: 1084: 1080: 1076: 1071: 1067: 1064: 1060: 1056: 1052: 1048: 1044: 1040: 1036: 1032: 1028: 1024: 1020: 1019:number theory 1010: 1008: 1004: 1000: 996: 995:Adolf Hurwitz 992: 988: 984: 980: 979:David Hilbert 976: 975: 969: 967: 947: 939: 935: 911: 907: 903: 899: 895: 891: 887: 883: 879: 875: 871: 866: 864: 860: 859:linear orders 856: 852: 851:nowhere dense 848: 844: 840: 836: 831: 829: 825: 821: 820:infinite sets 817: 813: 809: 805: 801: 796: 794: 790: 786: 782: 778: 774: 770: 760: 758: 754: 749: 747: 746: 741: 737: 732: 730: 726: 725: 720: 716: 712: 707: 706:Ernst Zermelo 703: 699: 696:at the Third 695: 691: 687: 683: 673: 671: 667: 662: 660: 656: 651: 649: 645: 641: 640:Francis Bacon 637: 631: 627: 623: 621: 616: 612: 608: 604: 598: 596: 595:Franz Mertens 592: 588: 583: 581: 576: 571: 569: 565: 559: 557: 553: 549: 548:number theory 545: 535: 533: 529: 525: 521: 517: 513: 509: 505: 501: 497: 493: 489: 485: 481: 472: 458: 456: 452: 451:David Hilbert 448: 444: 443:Royal Society 439: 437: 433: 428: 426: 422: 418: 414: 410: 406: 402: 398: 394: 390: 386: 382: 378: 373: 371: 367: 363: 359: 355: 351: 347: 343: 339: 335: 331: 326: 318: 317: 308: 281: 272: 267: 262: 258: 252: 249: 247: 244: 243: 241: 239: 235: 228: 227: 223: 221: 217: 214: 211: 207: 204: 201: 197: 194: 190: 186: 183: 179: 160: 156: 153: 150: 146: 140: 137: 135: 132: 130: 127: 126: 124: 120: 117: 113: 110: 106: 101: 91: 87: 83: 79: 62: 58: 45: 40: 33: 30: 19: 8075:Georg Cantor 7959:Georg Cantor 7958: 7933:Möbius plane 7871:Infinite set 7815:Aleph number 7600:Georg Cantor 7599: 7595:Paul Bernays 7526:Morse–Kelley 7501: 7434: 7433:Subset  7380:hereditarily 7342:Venn diagram 7300:ordered pair 7215:Intersection 7159:Axiom schema 6990:Chaos theory 6985:Kaleidoscope 6976: 6968: 6960: 6886:Gaston Julia 6866:Georg Cantor 6865: 6691:Escape-time 6623:Gosper curve 6571:LĂ©vy C curve 6556:Dragon curve 6435:Box-counting 6288:Hugh MacColl 6263:Georg Cantor 6262: 6258:George Boole 6155:Introduction 6111:modus ponens 6039:Higher-order 6034:Second-order 5984:Distribution 5944:Truth tables 5848: 5829: 5824:Georg Cantor 5810: 5788: 5764:Georg Cantor 5754:at Wikiquote 5752:Georg Cantor 5732: 5723: 5701: 5698:Rucker, Rudy 5676: 5665: 5657: 5653: 5642: 5624: 5599: 5595: 5571: 5568:Halmos, Paul 5550: 5525: 5521: 5503: 5476:the original 5442: 5438: 5426:the original 5405: 5401: 5381: 5377: 5345: 5341: 5329: 5307: 5303: 5277:(1): 51–58. 5274: 5270: 5241: 5237: 5208: 5204: 5175: 5171: 5150: 5146: 5110: 5104: 5069: 5046: 5041:Bibliography 5022: 4996: 4990: 4958: 4954: 4929: 4905: 4881: 4857: 4853: 4830: 4826: 4806:. Springer. 4803: 4784: 4765: 4745: 4741: 4719: 4711: 4707: 4690: 4668: 4641: 4637: 4611: 4600: 4584: 4572: 4564: 4559: 4551: 4547: 4538: 4532: 4520: 4512: 4507: 4495: 4470: 4445: 4441: 4433: 4428: 4415: 4402: 4397:, pp. 91–93. 4390: 4378: 4338: 4334: 4321: 4312: 4308: 4302: 4285: 4281: 4271: 4259: 4243: 4195: 4191: 4185: 4173:. Retrieved 4166:the original 4153: 4149: 4136: 4124: 4112: 4103: 4096:. Retrieved 4060: 4056: 4046: 4030:j.ctv10crfh1 4002: 3995: 3983:. Retrieved 3978: 3974: 3964: 3953:Hallett 1986 3948: 3936: 3924: 3913:Zermelo 1930 3908: 3901:Hallett 1986 3896: 3889:Hallett 1986 3885:Hallett 1986 3880: 3869:Zermelo 1908 3860: 3847: 3835: 3828:Purkert 1989 3819: 3803: 3796:Hallett 1986 3791: 3786: 3782: 3774: 3770: 3766: 3762: 3758: 3754: 3750: 3741: 3734:Hallett 1986 3729: 3717: 3705: 3700:, pp. 41–42. 3698:Hallett 1986 3693: 3677: 3663: 3655: 3647: 3623: 3616: 3596: 3584: 3572: 3557: 3552: 3547: 3543: 3536: 3530: 3525: 3521: 3514: 3510: 3506: 3502: 3498: 3494: 3490: 3483: 3475: 3471: 3464: 3457: 3450: 3443: 3436: 3432: 3428: 3423: 3418: 3412: 3407: 3400: 3393: 3386: 3382: 3375: 3368: 3361: 3354: 3346: 3341: 3328:. Retrieved 3321:the original 3300: 3294: 3276: 3269:coefficients 3252: 3239: 3226: 3201: 3197: 3182: 3166: 3157: 3146:the original 3128:(1): 1–121. 3125: 3121: 3108: 3076:(1): 51–89. 3073: 3067: 3029: 3025: 3019: 3000: 2995:"countable". 2986: 2975: 2966: 2951: 2941: 2919:(1): 55–62. 2916: 2912: 2891: 2879: 2862: 2850: 2838: 2822: 2795: 2783: 2767: 2760: 2752: 2740: 2728: 2713: 2681: 2647:. Retrieved 2643: 2606: 2601: 2591:14 September 2589:. Retrieved 2585: 2576: 2564: 2540: 2518: 2487: 2445: 2433: 2346: 2338: 2326: 2305: 2293: 2229:Cantor medal 2219:Aleph number 2136: 2134: 2114: 2104: 2094: 2090: 2084: 2082: 2074: 2065:Paul Tannery 2062: 2051: 2048: 2044: 2015: 1967: 1959: 1945: 1936:metaphysical 1932: 1912:Tilman Pesch 1908: 1901: 1897: 1889: 1887: 1882: 1872: 1864: 1852:Wittgenstein 1848:intuitionist 1823:intuitionism 1811: 1797: 1786: 1764: 1749: 1729:inconsistent 1717: 1709: 1701: 1694: 1666: 1657: 1653: 1647: 1629: 1619:between the 1608: 1600: 1598:real numbers 1593: 1586: 1568: 1551: 1546: 1539:line segment 1524: 1488: 1484: 1480: 1476: 1472: 1465: 1461: 1457: 1439: 1437: 1404: 1400: 1390: 1378:well-ordered 1365: 1360: 1359: 1357: 1337: 1335: 1330:intersection 1318: 1311: 1304: 1295: 1271:equinumerous 1264: 1201: 1196: 1192: 1188: 1181: 1174: 1169: 1165: 1158: 1151: 1144: 1140: 1135: 1131: 1126: 1122: 1117: 1113: 1108: 1104: 1100: 1097:limit points 1089: 1082: 1078: 1074: 1069: 1065: 1058: 1054: 1023:Eduard Heine 1016: 972: 970: 893: 892:, even when 889: 885: 881: 873: 867: 849:in 1875, is 832: 800:real numbers 797: 766: 750: 743: 733: 723: 694:Julius König 679: 663: 652: 633: 629: 624: 619: 614: 610: 606: 599: 587:Eduard Heine 584: 572: 560: 556:habilitation 544:dissertation 541: 528:Ernst Kummer 504:trigonometry 477: 440: 429: 389:Hermann Weyl 374: 354:real numbers 279: 278: 246:Ernst Kummer 224: 209:Institutions 192: 94:(1918-01-06) 74:3 March 1845 36:Georg Cantor 29: 8155:1918 deaths 8150:1845 births 8011:Mathematics 7820:Beth number 7625:Thomas Jech 7468:Alternative 7447:Uncountable 7401:Ultrafilter 7260:Cardinality 7164:replacement 7105:Determinacy 6981:(1987 book) 6973:(1986 book) 6965:(1982 book) 6951:Fractal art 6871:Bill Gosper 6835:LĂ©vy flight 6581:Peano curve 6576:Moore curve 6462:Topological 6447:Correlation 6233:Disjunction 6228:Conjunction 6213:Existential 6201:Elimination 6192:Disjunction 6187:Conjunction 6172:Existential 6029:First-order 5954:Truth value 5924:Quantifiers 5838:Thomas Jech 5602:: 161–190. 4605:Dauben 1979 4593:Dauben 1979 4525:Dauben 1979 4476:Dauben 1979 4421:Dauben 1979 4395:Dauben 1977 4383:Dauben 1979 4264:Dauben 1979 4252:Dauben 1977 4248:Cantor 1932 4236:Dauben 1977 4129:Dauben 1979 4117:Dauben 1979 3941:Dauben 1979 3929:Dauben 1979 3682:Cantor 1883 3652:Dauben 1979 3609:Cantor 1955 3589:Cantor 1883 3577:Dauben 1977 3565:Cantor 1879 3232:Suppes 1972 3171:Cantor 1874 2980:Cantor 1874 2896:Dauben 1979 2884:Dauben 1979 2872:Dauben 1979 2868:Dauben 1979 2855:Dauben 1979 2843:Dauben 1979 2827:Dauben 1979 2815:Dauben 1979 2800:Dauben 1979 2788:Dauben 1979 2774:, pp. 2–3; 2772:Dauben 1979 2757:Dauben 1977 2745:Dauben 1979 2733:Dauben 1979 2511:Dauben 1979 2492:Dauben 2004 2476:Dauben 1979 2461:Rodych 2007 2442:Dauben 1977 2438:Dauben 2004 2426:Dauben 1979 2409:Dauben 1977 2394:Dauben 1979 2390:Dauben 1977 2375:Dauben 2004 2331:Dauben 2004 2311:Dauben 1979 2101:Biographies 1879:determinism 1875:materialism 1867:neo-Thomist 1846:adopted an 1535:unit square 1446:Felix Klein 1397:cardinality 1063:derived set 839:cardinality 824:denumerable 757:World War I 484:Joseph Böhm 203:Mathematics 108:Nationality 53: 1910 8069:Categories 8059:Philosophy 7921:Geometries 7779:Set theory 7620:Kurt Gödel 7605:Paul Cohen 7442:Transitive 7210:Identities 7194:Complement 7181:Operations 7142:Regularity 7110:projective 7073:Adjunction 7032:Set theory 6789:Orbit trap 6784:Buddhabrot 6777:techniques 6765:Mandelbulb 6566:Koch curve 6499:Cantor set 6283:Kurt Gödel 6146:Absorption 6048:Principles 5934:Connective 5834:Set theory 5486:Fraenkel's 5178:(1): 1–7. 4910:BirkhĂ€user 4627:References 4488:Aczel 2000 4063:(4): 548. 3917:Ewald 1996 3891:, p. 286.) 3865:Moore 1982 3853:Moore 1982 3840:Moore 1982 3808:Moore 1988 3792:successive 3722:Moore 1982 3710:Moore 1982 3686:Ewald 1996 3330:6 December 3262:polynomial 3175:Ewald 1996 3032:(4): 281. 2829:, p. 136; 2428:, chpt. 6. 2070:Josef Böhm 2018:Copenhagen 1994:Philistine 1962:opposition 1890:Grundlagen 1673:Paul Cohen 1669:Kurt Gödel 1625:continuous 1469:equivalent 1353:Cantor set 1245:Set theory 1224:Otto Stolz 1007:set theory 843:Cantor set 777:Set theory 769:set theory 729:Heidelberg 682:sanatorium 494:, then to 334:set theory 152:Set theory 70:1845-03-03 7902:Supertask 7553:Paradoxes 7473:Axiomatic 7452:Universal 7428:Singleton 7423:Recursive 7366:Countable 7361:Amorphous 7220:Power set 7137:Power set 7088:dependent 7083:countable 6896:Paul LĂ©vy 6775:Rendering 6760:Mandelbox 6706:Julia set 6618:Hexaflake 6549:Minkowski 6469:Recursion 6452:Hausdorff 6218:Universal 6177:Universal 6080:Explosion 6065:Bivalence 5994:Soundness 5939:Tautology 5929:Predicate 5700:(2005) . 5616:121888793 5570:(1998) . 5459:121665994 5422:177801164 5384:: 75–78. 5362:179178052 5324:121930608 5291:179177480 5258:177809016 5225:179177438 5192:179177510 5127:199545885 4999:: 29–47. 4975:120085563 4833:: 46–56. 4579:, p. 350. 4527:, p. 274. 4385:, p. 144. 4315:(3): 535. 4266:, p. 296. 4220:154486558 4131:, p. 266. 4038:241372960 3981:(1): 8–16 3943:, p. 120. 3931:, p. 295. 3875:, p. 202. 3442:} = 3399:} = 3142:123157068 3100:119250310 3083:1104.0375 3046:122744778 2898:, p. 284. 2857:, p. 283. 2817:, p. 282. 2802:, p. 139. 2790:, p. 138. 2735:, p. 163. 2649:6 October 2513:, p. 248. 2411:, p. 102. 2392:, p. 86; 2300:, p. 351. 1924:pantheism 1860:extension 1856:intension 1793:orthodoxy 1765:In 1923, 1720:paradoxes 1679:plus the 1613:dimension 1564:dimension 1513:Bijection 1427:in 1894. 1370:monograph 1293:in 1844. 1279:countable 1073:of a set 948:ω 920:ℵ 906:cardinals 904:, called 872:of a set 870:power set 855:rationals 773:Aristotle 731:in 1904. 500:Darmstadt 496:Frankfurt 492:Wiesbaden 461:Biography 421:pantheism 264:Signature 18:Cantorian 7800:0.999... 7692:Infinity 7557:Problems 7461:Theories 7437:Superset 7413:Infinite 7242:Concepts 7122:Infinity 7039:Overview 6806:fractals 6693:fractals 6661:L-system 6603:T-square 6411:Fractals 6162:Negation 5989:Validity 5969:Logicism 5869:Archived 5675:(2004). 5590:(1926). 5502:(2000). 5482:Dedekind 5386:Archived 5131:Archived 5011:Archived 4764:(2000). 4699:Archived 4465:, p. 15. 4423:, p. 96. 4367:Archived 4363:19040786 4355:15359485 4254:, p. 95. 4238:, p. 85. 4175:April 2, 4119:, p. 225 4093:26155985 3830:, p. 56. 3712:, p. 42. 3579:, p. 89. 3463:} where 3431: = 3385: = 3008:Archived 2949:(1972). 2759:, p. 89 2747:, p. 34. 2705:41497065 2444:, p. 89 2440:, p. 1; 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Index

Cantorian

Saint Petersburg
Russian Empire
Halle
German
Russian
Swiss Federal Polytechnic
University of Berlin
University of Göttingen
Set theory
Sylvester Medal
Mathematics
University of Halle
Thesis
De aequationibus secundi gradus indeterminatis
Doctoral advisor
Ernst Kummer
Karl Weierstrass

/ˈkéntɔːr/
KAN-tor
[ˈɥeːɔʁkˈfɛʁdinantˈluːtvÉȘçˈfiːlÉȘpˈkantoËÉÌŻ]
O.S.
set theory
fundamental theory
one-to-one correspondence
infinite
well-ordered sets
real numbers

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