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Algebraic logic

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Leibniz had no influence on the rise of algebraic logic because his logical writings were little studied before the Parkinson and Loemker translations. Our present understanding of Leibniz as a logician stems mainly from the work of Wolfgang Lenzen, summarized in
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structure, based in set theory, was transcended by Tarski with axioms describing it. Then he asked if every algebra satisfying the axioms could be represented by a set relation. The negative answer opened the frontier of
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but without much background in order theory and/or universal algebra; the book covers these prerequisites at length. This book however has been criticized for poor and sometimes incorrect presentation of AAL results.
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relation. Riguet also extended ordering to the heterogeneous context by his note that a staircase logical matrix has a complement that is also a staircase, and that the theorem of
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The description of the key binary relation properties has been formulated with the calculus of relations. The univalence property of functions describes a relation
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used the algebraic logic to advance useful concepts: he extended the concept of an equivalence relation (on a set) to the heterogeneous case with the notion of a
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or mathematical systems, and the algebraic structure which are its models are shown on the right in the same row. Some of these structures are either
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Bjarni JĂłnsson (1984). "Maximal Algebras of Binary Relations". In Kenneth I. Appel; John G. Ratcliffe; Paul E. Schupp (eds.).
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Discrete Mathematics for Computer Scientists, page 54, EATCS Monographs on Theoretical Computer Science, Springer Verlag,
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Czelakowski, Janusz (2003). "Review: Algebraic Methods in Philosophical Logic by J. Michael Dunn and Gary M. Hardegree".
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of information, so relations are studied with Boolean arithmetic. Elements of the power set are partially ordered by
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method. Since logical matrices are certain abstract algebras, this led to the use of an algebraic method in logic."
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matrix. A relation obtained as the composition of two others is then represented by the logical matrix obtained by
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Algebraic logic is, perhaps, the oldest approach to formal logic, arguably beginning with a number of memoranda
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What is now usually called classical algebraic logic focuses on the identification and algebraic description of
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in 1918. But nearly all of Leibniz's known work on algebraic logic was published only in 1903 after
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wrote in the 1680s, some of which were published in the 19th century and translated into English by
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appropriate for the study of various logics (in the form of classes of algebras that constitute the
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The Mathematical Analysis of Logic, Being an Essay towards a Calculus of Deductive Reasoning
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Modern mathematical logic began in 1847, with two pamphlets whose respective authors were
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that always exists, contrary to function theory. A given relation may be represented by a
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Handbook of the History of Logic, Vol. 3: The Rise of Modern Logic from Leibniz to Frege
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Philosophiegeschichte und logische Analyse / Logical Analysis and History of Philosophy
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The rules of proof are the substitution of equals for equals, and uniform replacement.
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Schmidt uses this principle as "slipping below negation from the left". For a mapping
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as his version of pure mathematics based on the operations of the calculus as
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Algebra der Logik (Exakte Logik) Dritter Band, Algebra und Logik der Relative
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are typically modeled by what are called "Boolean algebras with operators."
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model theory as a major branch of contemporary mathematical logic, also:
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discusses the rich historical connections between algebraic logic and
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can draw inspiration from, and shed light on, Leibniz's thought, see
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From Peirce to Skolem: A Neglected Chapter in the History of Logic
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in 1918. He treated the logic of relations as derived from the
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on algebraic logic appeared after the 1910–13 publication of
770: 1176:, though De Morgan had anticipated them with his Theorem K. 142:. Whether a given relation holds for two individuals is one 1085:
translated selections from Couturat's volume into English.
1515:(May 1950). "The representation of Relational Algebras". 1403:. Contemporary Mathematics. Vol. 33. Providence/RI: 1191:. The "Boole–Schröder algebra of logic" was developed at 896: 887:, arguably the paradigmatic algebraic logic, can express 843:
In the table below, the left column contains one or more
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is the reasoning obtained by manipulating equations with
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are built up from variables using primitive and defined
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Propositional Consequence Relations and Algebraic Logic
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fall under the umbrella of classical algebraic logic (
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Good introduction for readers with prior exposure to
690: 634: 587: 540: 507: 438: 376: 349: 302: 176:; then the converse relation is represented by the 729: 670: 620: 573: 522: 463: 401: 362: 327: 3799: 1511: 756: 621:{\displaystyle {\bar {R}}\subseteq R{\bar {I}}} 574:{\displaystyle R{\bar {I}}\subseteq {\bar {R}}} 1398: 1307:In the practice of the calculus of relations, 192:An example of calculus of relations arises in 2055: 730:{\displaystyle f{\bar {A}}={\overline {fA}}.} 27:Reasoning about equations with free variables 1331:of logical vectors; these contribute to the 1100:published the first of several works on the 628:). Therefore, mappings satisfy the formula 1901:J. Michael Dunn; Gary M. Hardegree (2001). 1820: 1347:. To see how present-day work in logic and 1168:the calculus of relations was described by 85: 70: 63:representation theorem for Boolean algebras 2247: 2062: 2048: 1871: 1865:Leibniz: Philosophical Papers and Letters 1678:, London: Taylor & Walton, link from 1642:, second edition 1932, Dover edition 1960 1078: 769:, as models (interpretations) of certain 339:is the identity relation on the range of 61:and duality. Well known results like the 1903:Algebraic Methods in Philosophical Logic 1627: 1625: 1606:(1941), "On the Calculus of Relations", 1563:The Origins of the Calculus of Relations 1287:Initiated abstract algebraic logic with 1225:all shared Leibniz's dream of combining 1183:developed the calculus of relations and 91: 1965:". Stanford Encyclopedia of Philosophy. 1862: 1082: 671:{\displaystyle {\bar {R}}=R{\bar {I}}.} 14: 3800: 2069: 1934:Handbook of Philosophical Logic, vol 2 1854:" in Gabbay, D., and Woods, J., eds., 1849: 1344: 839:remains valid, but is seldom employed. 2043: 1880: 1798: 1622: 1599: 1597: 1595: 1593: 1444:G. Schmidt & T. Ströhlein (1993) 1352: 1268: 276:α is a homogeneous relation on 1777:Mathematical Association of America 1319:follows from interpretation of the 870:in at least some respects include: 420:But a univalent relation is only a 24: 1894: 1696:Principles of the Algebra of Logic 1590: 1193:University of California, Berkeley 1148:is represented as a member of the 1110:Principles of the Algebra of Logic 866:Algebraic formalisms going beyond 794:existentially quantified variables 464:{\displaystyle I\subseteq RR^{T}.} 402:{\displaystyle RR^{T}\subseteq I,} 328:{\displaystyle R^{T}R\subseteq I,} 25: 3824: 2024: 2008:JĂĄnos Bolyai Mathematical Society 1994:The Search for Mathematical Roots 1883:A (Leibnizian) Theory of Concepts 1487:G. Schmidt & M. Winter(2018) 1323:of a staircase. Riguet generated 877:, having the expressive power of 482:for a total, univalent relation. 413:is the identity on the domain of 3781: 1429:The Categories of Charles Peirce 1775:, edited by Aubert Daigneault, 1762: 1748: 1723: 1702: 1684: 1663: 1645: 530:for the complement of relation 234:is a direct answer to question 1963:The Algebra of Logic Tradition 1823:The Bulletin of Symbolic Logic 1640:University of California Press 1571: 1553: 1505: 1481: 1458: 1438: 1421: 1392: 1172:. In particular he formulated 739: 700: 659: 641: 612: 594: 565: 550: 514: 432:. The formula for totality is 57:) and connected problems like 13: 1: 3742:History of mathematical logic 1996:. Princeton University Press. 1757:The Principles of Mathematics 1433:Open Court Publishing Company 1405:American Mathematical Society 1401:Contributions to Group Theory 1385: 1160:with properties described by 122:is found in the power set of 3667:Primitive recursive function 1924:Review by Janusz Czelakowski 1495:vol. 2208, Springer Verlag, 1493:Lecture Notes in Mathematics 757:Algebras as models of logics 719: 287: 7: 1905:. Oxford University Press. 1358: 1073:discovered it in Leibniz's 773:, making logic a branch of 296:that satisfies the formula 10: 3829: 2731:Schröder–Bernstein theorem 2458:Monadic predicate calculus 2117:Foundations of mathematics 1936:(2nd ed.). Springer. 1876:. Oxford University Press. 1792: 1773:Studies in Algebraic Logic 1636:A Survey of Symbolic Logic 1470:Cambridge University Press 1333:non-enlargeable rectangles 1207:of two or more variables. 1054: 1050: 895:, including the canonical 828:, equate a formula with a 523:{\displaystyle {\bar {R}}} 210:. There are two relations 187: 184:using Boolean arithmetic. 3777: 3764:Philosophy of mathematics 3713:Automated theorem proving 3695: 3590: 3422: 3315: 3167: 2884: 2860: 2838:Von Neumann–Bernays–Gödel 2783: 2677: 2581: 2479: 2470: 2397: 2332: 2238: 2160: 2077: 1872:Parkinson, G.H.R (1966). 1850:Lenzen, Wolfgang, 2004, " 1799:Brady, Geraldine (2000). 1609:Journal of Symbolic Logic 1301:Lindenbaum–Tarski algebra 1116:, a student of Peirce at 910:Lindenbaum–Tarski algebra 76:Works in the more recent 1977:Harvard University Press 1961:Stanley Burris (2015), " 1863:Loemker, Leroy (1969) , 1126:composition of relations 1118:Johns Hopkins University 1006:Complete Boolean algebra 751:abstract algebraic logic 581:), and total relations ( 272:so that the composition 260:. The converse relation 156:composition of relations 78:abstract algebraic logic 3414:Self-verifying theories 3235:Tarski's axiomatization 2186:Tarski's undefinability 2181:incompleteness theorems 1954:Ramon Jansana (2011), " 1874:Leibniz: Logical Papers 1867:(2nd ed.), Reidel. 1714:On the Algebra of Logic 1337:formal concept analysis 1205:propositional functions 1020:First-order logic with 1014:predicate functor logic 994:Monadic Boolean algebra 989:monadic predicate logic 761:Algebraic logic treats 487:complementary relations 152:relative multiplication 3788:Mathematics portal 3399:Proof of impossibility 3047:propositional variable 2357:Propositional calculus 1984:Historical perspective 1858:. North-Holland: 1-84. 1699:, via Internet Archive 1466:Relational Mathematics 1427:Eugene Freeman (1934) 1112:in 1879, and in 1883, 1098:Charles Sanders Peirce 893:axiomatic set theories 786:universally quantified 784:Variables are tacitly 731: 672: 622: 575: 524: 465: 403: 364: 329: 238:. The other relation, 120:heterogeneous relation 3657:Kolmogorov complexity 3610:Computably enumerable 3510:Model complete theory 3302:Principia Mathematica 2362:Propositional formula 2191:Banach–Tarski paradox 1990:Ivor Grattan-Guinness 1881:Zalta, E. N., 2000, " 1518:Annals of Mathematics 1325:rectangular relations 1251:Principia Mathematica 790:universe of discourse 732: 673: 623: 576: 525: 466: 404: 365: 363:{\displaystyle R^{T}} 330: 182:matrix multiplication 92:Calculus of relations 18:Calculus of relations 3605:Church–Turing thesis 3592:Computability theory 2801:continuum hypothesis 2319:Square of opposition 2177:Gödel's completeness 1919:non-classical logics 1691:Alexander Macfarlane 1446:Relations and Graphs 1407:. pp. 299–307. 1166:Hochschule Karlsruhe 1106:Alexander Macfarlane 932:propositional logic 822:logically equivalent 780:In algebraic logic: 763:algebraic structures 688: 632: 585: 538: 505: 436: 424:, while a univalent 374: 347: 300: 3759:Mathematical object 3650:P versus NP problem 3615:Computable function 3409:Reverse mathematics 3335:Logical consequence 3212:primitive recursive 3207:elementary function 2980:Free/bound variable 2833:Tarski–Grothendieck 2352:Logical connectives 2282:Logical equivalence 2132:Logical consequence 1973:The Ways of Paradox 1567:Stanford University 1489:Relational Topology 1124:were combined with 861:nonclassical logics 51:algebraic semantics 3557:Transfer principle 3520:Semantics of logic 3505:Categorical theory 3481:Non-standard model 2995:Logical connective 2122:Information theory 2071:Mathematical logic 1754:B. Russell (1903) 1670:Augustus De Morgan 1464:G. Schmidt (2011) 1102:logic of relatives 1094:Augustus De Morgan 1057:Symbolical algebra 727: 668: 618: 571: 520: 491:Augustus De Morgan 461: 399: 360: 325: 32:mathematical logic 3795: 3794: 3727:Abstract category 3530:Theories of truth 3340:Rule of inference 3330:Natural deduction 3311: 3310: 2856: 2855: 2561:Cartesian product 2466: 2465: 2372:Many-valued logic 2347:Boolean functions 2230:Russell's paradox 2205:diagonal argument 2102:First-order logic 1943:978-0-7923-7126-7 1912:978-0-19-853192-0 1501:978-3-319-74451-3 1477:978-0-521-76268-7 1414:978-0-8218-5035-0 1380:Universal algebra 1295:cylindric algebra 1289:relation algebras 1279:, the founder of 1242:Leopold Löwenheim 1240:Some writings by 1189:primitive notions 1048: 1047: 1039:Combinatory logic 1027:Cylindric algebra 1001:First-order logic 943:Ɓukasiewicz logic 875:Combinatory logic 868:first-order logic 853:proper extensions 722: 703: 662: 644: 615: 597: 568: 553: 517: 370:, or the formula 170:converse relation 55:deductive systems 16:(Redirected from 3820: 3813:History of logic 3786: 3785: 3737:History of logic 3732:Category of sets 3625:Decision problem 3404:Ordinal analysis 3345:Sequent calculus 3243:Boolean algebras 3183: 3182: 3157: 3128:logical/constant 2882: 2881: 2868: 2791:Zermelo–Fraenkel 2542:Set operations: 2477: 2476: 2414: 2245: 2244: 2225:Löwenheim–Skolem 2112:Formal semantics 2064: 2057: 2050: 2041: 2040: 1947: 1916: 1890: 1877: 1868: 1859: 1846: 1817: 1815: 1814: 1786: 1766: 1760: 1752: 1746: 1744:Internet Archive 1727: 1721: 1706: 1700: 1688: 1682: 1667: 1661: 1649: 1643: 1629: 1620: 1601: 1588: 1575: 1569: 1557: 1551: 1550: 1509: 1503: 1485: 1479: 1462: 1456: 1442: 1436: 1425: 1419: 1418: 1396: 1375:Computer algebra 1181:Bertrand Russell 1122:binary relations 1079:Parkinson (1966) 1043:relation algebra 1010:polyadic algebra 977:Interior algebra 918:sentential logic 903: 902: 889:Peano arithmetic 885:Relation algebra 849:Boolean algebras 767:bounded lattices 746:relation algebra 736: 734: 733: 728: 723: 718: 710: 705: 704: 696: 684: 682: 677: 675: 674: 669: 664: 663: 655: 646: 645: 637: 627: 625: 624: 619: 617: 616: 608: 599: 598: 590: 580: 578: 577: 572: 570: 569: 561: 555: 554: 546: 533: 529: 527: 526: 521: 519: 518: 510: 485:The facility of 470: 468: 467: 462: 457: 456: 422:partial function 416: 412: 409:where this time 408: 406: 405: 400: 389: 388: 369: 367: 366: 361: 359: 358: 342: 338: 334: 332: 331: 326: 312: 311: 295: 275: 263: 244: 214:and α from 213: 141: 131: 113: 100:is found in the 86:Czelakowski 2003 82:Leibniz operator 71:Czelakowski 2003 21: 3828: 3827: 3823: 3822: 3821: 3819: 3818: 3817: 3808:Algebraic logic 3798: 3797: 3796: 3791: 3780: 3773: 3718:Category theory 3708:Algebraic logic 3691: 3662:Lambda calculus 3600:Church encoding 3586: 3562:Truth predicate 3418: 3384:Complete theory 3307: 3176: 3172: 3168: 3163: 3155: 2875: and  2871: 2866: 2852: 2828:New Foundations 2796:axiom of choice 2779: 2741:Gödel numbering 2681: and  2673: 2577: 2462: 2412: 2393: 2342:Boolean algebra 2328: 2292:Equiconsistency 2257:Classical logic 2234: 2215:Halting problem 2203: and  2179: and  2167: and  2166: 2161:Theorems ( 2156: 2073: 2068: 2031:Algebraic logic 2027: 2004:Algebraic Logic 1944: 1913: 1897: 1895:Further reading 1852:Leibniz’s Logic 1812: 1810: 1795: 1790: 1789: 1767: 1763: 1753: 1749: 1728: 1724: 1707: 1703: 1689: 1685: 1668: 1664: 1650: 1646: 1630: 1623: 1618:10.2307/2268577 1602: 1591: 1576: 1572: 1558: 1554: 1531:10.2307/1969375 1513:Roger C. Lyndon 1510: 1506: 1486: 1482: 1463: 1459: 1443: 1439: 1426: 1422: 1415: 1397: 1393: 1388: 1365:Boolean algebra 1361: 1223:A. N. Whitehead 1162:Boolean algebra 1059: 1053: 936:Heyting algebra 923:Boolean algebra 906:Logical system 824:. To express a 810:. There are no 792:. There are no 759: 742: 711: 709: 695: 694: 689: 686: 685: 680: 679: 654: 653: 636: 635: 633: 630: 629: 607: 606: 589: 588: 586: 583: 582: 560: 559: 545: 544: 539: 536: 535: 531: 509: 508: 506: 503: 502: 476:Gunther Schmidt 472:Charles Loewner 452: 448: 437: 434: 433: 414: 410: 384: 380: 375: 372: 371: 354: 350: 348: 345: 344: 340: 336: 307: 303: 301: 298: 297: 293: 290: 282:Socratic method 273: 261: 242: 211: 190: 133: 123: 105: 98:binary relation 94: 36:algebraic logic 28: 23: 22: 15: 12: 11: 5: 3826: 3816: 3815: 3810: 3793: 3792: 3778: 3775: 3774: 3772: 3771: 3766: 3761: 3756: 3751: 3750: 3749: 3739: 3734: 3729: 3720: 3715: 3710: 3705: 3703:Abstract logic 3699: 3697: 3693: 3692: 3690: 3689: 3684: 3682:Turing machine 3679: 3674: 3669: 3664: 3659: 3654: 3653: 3652: 3647: 3642: 3637: 3632: 3622: 3620:Computable set 3617: 3612: 3607: 3602: 3596: 3594: 3588: 3587: 3585: 3584: 3579: 3574: 3569: 3564: 3559: 3554: 3549: 3548: 3547: 3542: 3537: 3527: 3522: 3517: 3515:Satisfiability 3512: 3507: 3502: 3501: 3500: 3490: 3489: 3488: 3478: 3477: 3476: 3471: 3466: 3461: 3456: 3446: 3445: 3444: 3439: 3432:Interpretation 3428: 3426: 3420: 3419: 3417: 3416: 3411: 3406: 3401: 3396: 3386: 3381: 3380: 3379: 3378: 3377: 3367: 3362: 3352: 3347: 3342: 3337: 3332: 3327: 3321: 3319: 3313: 3312: 3309: 3308: 3306: 3305: 3297: 3296: 3295: 3294: 3289: 3288: 3287: 3282: 3277: 3257: 3256: 3255: 3253:minimal axioms 3250: 3239: 3238: 3237: 3226: 3225: 3224: 3219: 3214: 3209: 3204: 3199: 3186: 3184: 3165: 3164: 3162: 3161: 3160: 3159: 3147: 3142: 3141: 3140: 3135: 3130: 3125: 3115: 3110: 3105: 3100: 3099: 3098: 3093: 3083: 3082: 3081: 3076: 3071: 3066: 3056: 3051: 3050: 3049: 3044: 3039: 3029: 3028: 3027: 3022: 3017: 3012: 3007: 3002: 2992: 2987: 2982: 2977: 2976: 2975: 2970: 2965: 2960: 2950: 2945: 2943:Formation rule 2940: 2935: 2934: 2933: 2928: 2918: 2917: 2916: 2906: 2901: 2896: 2891: 2885: 2879: 2862:Formal systems 2858: 2857: 2854: 2853: 2851: 2850: 2845: 2840: 2835: 2830: 2825: 2820: 2815: 2810: 2805: 2804: 2803: 2798: 2787: 2785: 2781: 2780: 2778: 2777: 2776: 2775: 2765: 2760: 2759: 2758: 2751:Large cardinal 2748: 2743: 2738: 2733: 2728: 2714: 2713: 2712: 2707: 2702: 2687: 2685: 2675: 2674: 2672: 2671: 2670: 2669: 2664: 2659: 2649: 2644: 2639: 2634: 2629: 2624: 2619: 2614: 2609: 2604: 2599: 2594: 2588: 2586: 2579: 2578: 2576: 2575: 2574: 2573: 2568: 2563: 2558: 2553: 2548: 2540: 2539: 2538: 2533: 2523: 2518: 2516:Extensionality 2513: 2511:Ordinal number 2508: 2498: 2493: 2492: 2491: 2480: 2474: 2468: 2467: 2464: 2463: 2461: 2460: 2455: 2450: 2445: 2440: 2435: 2430: 2429: 2428: 2418: 2417: 2416: 2403: 2401: 2395: 2394: 2392: 2391: 2390: 2389: 2384: 2379: 2369: 2364: 2359: 2354: 2349: 2344: 2338: 2336: 2330: 2329: 2327: 2326: 2321: 2316: 2311: 2306: 2301: 2296: 2295: 2294: 2284: 2279: 2274: 2269: 2264: 2259: 2253: 2251: 2242: 2236: 2235: 2233: 2232: 2227: 2222: 2217: 2212: 2207: 2195:Cantor's  2193: 2188: 2183: 2173: 2171: 2158: 2157: 2155: 2154: 2149: 2144: 2139: 2134: 2129: 2124: 2119: 2114: 2109: 2104: 2099: 2094: 2093: 2092: 2081: 2079: 2075: 2074: 2067: 2066: 2059: 2052: 2044: 2038: 2037: 2026: 2025:External links 2023: 2022: 2021: 2000:Irving Anellis 1997: 1981: 1980: 1966: 1959: 1952: 1942: 1930:Hajnal AndrĂ©ka 1926: 1911: 1896: 1893: 1892: 1891: 1878: 1869: 1860: 1847: 1818: 1794: 1791: 1788: 1787: 1769:Helena Rasiowa 1761: 1747: 1730:Ernst Schröder 1722: 1709:Christine Ladd 1701: 1683: 1662: 1644: 1632:Clarence Lewis 1621: 1589: 1570: 1552: 1525:(3): 707–729. 1504: 1480: 1457: 1437: 1420: 1413: 1390: 1389: 1387: 1384: 1383: 1382: 1377: 1372: 1370:Codd's theorem 1367: 1360: 1357: 1327:by taking the 1309:Jacques Riguet 1305: 1304: 1299:Co-discovered 1297: 1291: 1263:logical matrix 1259:Helena Rasiowa 1246:Thoralf Skolem 1227:symbolic logic 1219:Giuseppe Peano 1201:Clarence Lewis 1174:Schröder rules 1170:Ernst Schröder 1114:Christine Ladd 1108:published his 1083:Loemker (1969) 1071:Louis Couturat 1067:Clarence Lewis 1052: 1049: 1046: 1045: 1036: 1030: 1029: 1024: 1017: 1016: 1003: 997: 996: 991: 980: 979: 974: 964: 963: 958: 951: 950: 945: 939: 938: 933: 930:Intuitionistic 926: 925: 920: 913: 912: 907: 901: 900: 882: 841: 840: 833: 815: 801: 758: 755: 741: 738: 726: 721: 717: 714: 708: 702: 699: 693: 667: 661: 658: 652: 649: 643: 640: 614: 611: 605: 602: 596: 593: 567: 564: 558: 552: 549: 543: 516: 513: 497:to introduce 495:Ernst Schröder 460: 455: 451: 447: 444: 441: 426:total relation 398: 395: 392: 387: 383: 379: 357: 353: 324: 321: 318: 315: 310: 306: 289: 286: 254:presupposition 189: 186: 174:logical matrix 168:refers to the 96:A homogeneous 93: 90: 59:representation 40:free variables 26: 9: 6: 4: 3: 2: 3825: 3814: 3811: 3809: 3806: 3805: 3803: 3790: 3789: 3784: 3776: 3770: 3767: 3765: 3762: 3760: 3757: 3755: 3752: 3748: 3745: 3744: 3743: 3740: 3738: 3735: 3733: 3730: 3728: 3724: 3721: 3719: 3716: 3714: 3711: 3709: 3706: 3704: 3701: 3700: 3698: 3694: 3688: 3685: 3683: 3680: 3678: 3677:Recursive set 3675: 3673: 3670: 3668: 3665: 3663: 3660: 3658: 3655: 3651: 3648: 3646: 3643: 3641: 3638: 3636: 3633: 3631: 3628: 3627: 3626: 3623: 3621: 3618: 3616: 3613: 3611: 3608: 3606: 3603: 3601: 3598: 3597: 3595: 3593: 3589: 3583: 3580: 3578: 3575: 3573: 3570: 3568: 3565: 3563: 3560: 3558: 3555: 3553: 3550: 3546: 3543: 3541: 3538: 3536: 3533: 3532: 3531: 3528: 3526: 3523: 3521: 3518: 3516: 3513: 3511: 3508: 3506: 3503: 3499: 3496: 3495: 3494: 3491: 3487: 3486:of arithmetic 3484: 3483: 3482: 3479: 3475: 3472: 3470: 3467: 3465: 3462: 3460: 3457: 3455: 3452: 3451: 3450: 3447: 3443: 3440: 3438: 3435: 3434: 3433: 3430: 3429: 3427: 3425: 3421: 3415: 3412: 3410: 3407: 3405: 3402: 3400: 3397: 3394: 3393:from ZFC 3390: 3387: 3385: 3382: 3376: 3373: 3372: 3371: 3368: 3366: 3363: 3361: 3358: 3357: 3356: 3353: 3351: 3348: 3346: 3343: 3341: 3338: 3336: 3333: 3331: 3328: 3326: 3323: 3322: 3320: 3318: 3314: 3304: 3303: 3299: 3298: 3293: 3292:non-Euclidean 3290: 3286: 3283: 3281: 3278: 3276: 3275: 3271: 3270: 3268: 3265: 3264: 3262: 3258: 3254: 3251: 3249: 3246: 3245: 3244: 3240: 3236: 3233: 3232: 3231: 3227: 3223: 3220: 3218: 3215: 3213: 3210: 3208: 3205: 3203: 3200: 3198: 3195: 3194: 3192: 3188: 3187: 3185: 3180: 3174: 3169:Example  3166: 3158: 3153: 3152: 3151: 3148: 3146: 3143: 3139: 3136: 3134: 3131: 3129: 3126: 3124: 3121: 3120: 3119: 3116: 3114: 3111: 3109: 3106: 3104: 3101: 3097: 3094: 3092: 3089: 3088: 3087: 3084: 3080: 3077: 3075: 3072: 3070: 3067: 3065: 3062: 3061: 3060: 3057: 3055: 3052: 3048: 3045: 3043: 3040: 3038: 3035: 3034: 3033: 3030: 3026: 3023: 3021: 3018: 3016: 3013: 3011: 3008: 3006: 3003: 3001: 2998: 2997: 2996: 2993: 2991: 2988: 2986: 2983: 2981: 2978: 2974: 2971: 2969: 2966: 2964: 2961: 2959: 2956: 2955: 2954: 2951: 2949: 2946: 2944: 2941: 2939: 2936: 2932: 2929: 2927: 2926:by definition 2924: 2923: 2922: 2919: 2915: 2912: 2911: 2910: 2907: 2905: 2902: 2900: 2897: 2895: 2892: 2890: 2887: 2886: 2883: 2880: 2878: 2874: 2869: 2863: 2859: 2849: 2846: 2844: 2841: 2839: 2836: 2834: 2831: 2829: 2826: 2824: 2821: 2819: 2816: 2814: 2813:Kripke–Platek 2811: 2809: 2806: 2802: 2799: 2797: 2794: 2793: 2792: 2789: 2788: 2786: 2782: 2774: 2771: 2770: 2769: 2766: 2764: 2761: 2757: 2754: 2753: 2752: 2749: 2747: 2744: 2742: 2739: 2737: 2734: 2732: 2729: 2726: 2722: 2718: 2715: 2711: 2708: 2706: 2703: 2701: 2698: 2697: 2696: 2692: 2689: 2688: 2686: 2684: 2680: 2676: 2668: 2665: 2663: 2660: 2658: 2657:constructible 2655: 2654: 2653: 2650: 2648: 2645: 2643: 2640: 2638: 2635: 2633: 2630: 2628: 2625: 2623: 2620: 2618: 2615: 2613: 2610: 2608: 2605: 2603: 2600: 2598: 2595: 2593: 2590: 2589: 2587: 2585: 2580: 2572: 2569: 2567: 2564: 2562: 2559: 2557: 2554: 2552: 2549: 2547: 2544: 2543: 2541: 2537: 2534: 2532: 2529: 2528: 2527: 2524: 2522: 2519: 2517: 2514: 2512: 2509: 2507: 2503: 2499: 2497: 2494: 2490: 2487: 2486: 2485: 2482: 2481: 2478: 2475: 2473: 2469: 2459: 2456: 2454: 2451: 2449: 2446: 2444: 2441: 2439: 2436: 2434: 2431: 2427: 2424: 2423: 2422: 2419: 2415: 2410: 2409: 2408: 2405: 2404: 2402: 2400: 2396: 2388: 2385: 2383: 2380: 2378: 2375: 2374: 2373: 2370: 2368: 2365: 2363: 2360: 2358: 2355: 2353: 2350: 2348: 2345: 2343: 2340: 2339: 2337: 2335: 2334:Propositional 2331: 2325: 2322: 2320: 2317: 2315: 2312: 2310: 2307: 2305: 2302: 2300: 2297: 2293: 2290: 2289: 2288: 2285: 2283: 2280: 2278: 2275: 2273: 2270: 2268: 2265: 2263: 2262:Logical truth 2260: 2258: 2255: 2254: 2252: 2250: 2246: 2243: 2241: 2237: 2231: 2228: 2226: 2223: 2221: 2218: 2216: 2213: 2211: 2208: 2206: 2202: 2198: 2194: 2192: 2189: 2187: 2184: 2182: 2178: 2175: 2174: 2172: 2170: 2164: 2159: 2153: 2150: 2148: 2145: 2143: 2140: 2138: 2135: 2133: 2130: 2128: 2125: 2123: 2120: 2118: 2115: 2113: 2110: 2108: 2105: 2103: 2100: 2098: 2095: 2091: 2088: 2087: 2086: 2083: 2082: 2080: 2076: 2072: 2065: 2060: 2058: 2053: 2051: 2046: 2045: 2042: 2036: 2032: 2029: 2028: 2020: 2016: 2013: 2009: 2005: 2001: 1998: 1995: 1991: 1988: 1987: 1986: 1985: 1978: 1974: 1970: 1969:Willard Quine 1967: 1964: 1960: 1957: 1953: 1950: 1945: 1939: 1935: 1931: 1927: 1925: 1920: 1914: 1908: 1904: 1899: 1898: 1888: 1884: 1879: 1875: 1870: 1866: 1861: 1857: 1853: 1848: 1844: 1840: 1836: 1832: 1828: 1824: 1819: 1809:on 2009-04-02 1808: 1804: 1803: 1797: 1796: 1785: 1784:0-88385-109-1 1781: 1778: 1774: 1770: 1765: 1759: 1758: 1751: 1745: 1741: 1740:B. G. Teubner 1737: 1736: 1731: 1726: 1720: 1716: 1715: 1710: 1705: 1698: 1697: 1692: 1687: 1681: 1677: 1676: 1671: 1666: 1659: 1658: 1653: 1648: 1641: 1637: 1633: 1628: 1626: 1619: 1615: 1611: 1610: 1605: 1604:Alfred Tarski 1600: 1598: 1596: 1594: 1587: 1583: 1582:Studia Logica 1579: 1574: 1568: 1564: 1561: 1556: 1548: 1544: 1540: 1536: 1532: 1528: 1524: 1520: 1519: 1514: 1508: 1502: 1498: 1494: 1490: 1484: 1478: 1474: 1471: 1467: 1461: 1455: 1454:3-540-56254-0 1451: 1447: 1441: 1434: 1430: 1424: 1416: 1410: 1406: 1402: 1395: 1391: 1381: 1378: 1376: 1373: 1371: 1368: 1366: 1363: 1362: 1356: 1354: 1350: 1346: 1345:Lenzen (2004) 1340: 1338: 1334: 1330: 1329:outer product 1326: 1322: 1318: 1317:N. M. Ferrers 1314: 1310: 1302: 1298: 1296: 1292: 1290: 1286: 1285: 1284: 1282: 1281:set theoretic 1278: 1277:Alfred Tarski 1274: 1270: 1266: 1264: 1260: 1257:According to 1255: 1253: 1252: 1247: 1243: 1238: 1236: 1232: 1228: 1224: 1220: 1216: 1215:Gottlob Frege 1212: 1208: 1206: 1202: 1198: 1194: 1190: 1186: 1182: 1177: 1175: 1171: 1167: 1163: 1159: 1155: 1151: 1147: 1143: 1139: 1135: 1131: 1127: 1123: 1119: 1115: 1111: 1107: 1103: 1099: 1095: 1091: 1086: 1084: 1080: 1076: 1072: 1068: 1064: 1058: 1044: 1040: 1037: 1035: 1032: 1031: 1028: 1025: 1023: 1019: 1018: 1015: 1011: 1007: 1004: 1002: 999: 998: 995: 992: 990: 986: 982: 981: 978: 975: 973: 969: 966: 965: 962: 961:Modal algebra 959: 957: 953: 952: 949: 946: 944: 941: 940: 937: 934: 931: 928: 927: 924: 921: 919: 915: 914: 911: 908: 905: 904: 898: 894: 890: 886: 883: 880: 876: 873: 872: 871: 869: 864: 862: 858: 854: 850: 846: 838: 834: 831: 827: 823: 819: 816: 813: 809: 805: 802: 799: 798:open formulas 795: 791: 787: 783: 782: 781: 778: 776: 772: 768: 764: 754: 752: 747: 737: 724: 715: 712: 706: 697: 691: 665: 656: 650: 647: 638: 609: 603: 600: 591: 562: 556: 547: 541: 511: 500: 496: 492: 488: 483: 481: 478:use the term 477: 473: 458: 453: 449: 445: 442: 439: 431: 427: 423: 418: 396: 393: 390: 385: 381: 377: 355: 351: 322: 319: 316: 313: 308: 304: 285: 283: 279: 271: 267: 259: 255: 251: 247: 241: 237: 233: 229: 225: 221: 217: 209: 206: 202: 199: 195: 185: 183: 179: 175: 171: 167: 162: 159: 157: 153: 149: 145: 140: 136: 130: 126: 121: 117: 114:for some set 112: 108: 103: 99: 89: 87: 83: 79: 74: 72: 68: 67:Stone duality 64: 60: 56: 52: 48: 43: 41: 37: 33: 19: 3779: 3707: 3577:Ultraproduct 3424:Model theory 3389:Independence 3325:Formal proof 3317:Proof theory 3300: 3273: 3230:real numbers 3202:second-order 3113:Substitution 2990:Metalanguage 2931:conservative 2904:Axiom schema 2848:Constructive 2818:Morse–Kelley 2784:Set theories 2763:Aleph number 2756:inaccessible 2662:Grothendieck 2546:intersection 2433:Higher-order 2421:Second-order 2367:Truth tables 2324:Venn diagram 2107:Formal proof 2003: 1993: 1983: 1982: 1972: 1933: 1902: 1886: 1873: 1864: 1855: 1826: 1822: 1811:. Retrieved 1807:the original 1801: 1772: 1764: 1755: 1750: 1733: 1725: 1719:Google Books 1712: 1704: 1694: 1686: 1675:Formal Logic 1673: 1665: 1656: 1652:George Boole 1647: 1635: 1607: 1585: 1578:Roger Maddux 1573: 1560:Vaughn Pratt 1555: 1522: 1516: 1507: 1488: 1483: 1465: 1460: 1445: 1440: 1428: 1423: 1400: 1394: 1353:Zalta (2000) 1341: 1332: 1324: 1313:difunctional 1306: 1273:model theory 1269:Brady (2000) 1267: 1256: 1249: 1239: 1211:Hugh MacColl 1209: 1178: 1157: 1153: 1145: 1141: 1133: 1129: 1109: 1090:George Boole 1087: 1060: 954:Modal logic 865: 842: 837:Modus ponens 779: 775:order theory 760: 745: 743: 499:equivalences 484: 479: 419: 291: 277: 269: 265: 257: 256:of question 249: 245: 239: 235: 231: 227: 223: 219: 215: 207: 200: 191: 165: 163: 160: 151: 138: 134: 128: 124: 115: 110: 106: 95: 75: 44: 35: 29: 3687:Type theory 3635:undecidable 3567:Truth value 3454:equivalence 3133:non-logical 2746:Enumeration 2736:Isomorphism 2683:cardinality 2667:Von Neumann 2632:Ultrafilter 2597:Uncountable 2531:equivalence 2448:Quantifiers 2438:Fixed-point 2407:First-order 2287:Consistency 2272:Proposition 2249:Traditional 2220:Lindström's 2210:Compactness 2152:Type theory 2097:Cardinality 1889:3: 137-183. 1738:, Leibzig: 1680:Hathi Trust 1431:, page 10, 1349:metaphysics 1231:mathematics 1128:. For sets 830:truth value 812:connectives 740:Abstraction 248:holds when 230:holds when 3802:Categories 3498:elementary 3191:arithmetic 3059:Quantifier 3037:functional 2909:Expression 2627:Transitive 2571:identities 2556:complement 2489:hereditary 2472:Set theory 2035:PhilPapers 2019:0444885439 1813:2009-05-15 1732:, (1895), 1491:, page 8, 1386:References 1235:philosophy 1096:. In 1870 1055:See also: 1034:Set theory 948:MV-algebra 916:Classical 879:set theory 859:and other 808:operations 788:over some 284:dialogue. 264:runs from 198:statements 166:conversion 118:, while a 53:for these 3769:Supertask 3672:Recursion 3630:decidable 3464:saturated 3442:of models 3365:deductive 3360:axiomatic 3280:Hilbert's 3267:Euclidean 3248:canonical 3171:axiomatic 3103:Signature 3032:Predicate 2921:Extension 2843:Ackermann 2768:Operation 2647:Universal 2637:Recursive 2612:Singleton 2607:Inhabited 2592:Countable 2582:Types of 2566:power set 2536:partition 2453:Predicate 2399:Predicate 2314:Syllogism 2304:Soundness 2277:Inference 2267:Tautology 2169:paradoxes 1835:1079-8986 1612:6: 73–89 1321:transpose 1293:Invented 1150:power set 891:and most 855:thereof. 826:tautology 720:¯ 701:¯ 660:¯ 642:¯ 613:¯ 601:⊆ 595:¯ 566:¯ 557:⊆ 551:¯ 515:¯ 489:inspired 443:⊆ 391:⊆ 317:⊆ 288:Functions 205:questions 194:erotetics 178:transpose 148:inclusion 102:power set 3754:Logicism 3747:timeline 3723:Concrete 3582:Validity 3552:T-schema 3545:Kripke's 3540:Tarski's 3535:semantic 3525:Strength 3474:submodel 3469:spectrum 3437:function 3285:Tarski's 3274:Elements 3261:geometry 3217:Robinson 3138:variable 3123:function 3096:spectrum 3086:Sentence 3042:variable 2985:Language 2938:Relation 2899:Automata 2889:Alphabet 2873:language 2727:-jection 2705:codomain 2691:Function 2652:Universe 2622:Infinite 2526:Relation 2309:Validity 2299:Argument 2197:theorem, 2012:Elsevier 1992:, 2000. 1711:(1883), 1693:(1879), 1672:(1847), 1586:: 421-55 1359:See also 1197:textbook 1185:logicism 1179:In 1903 1138:relation 1075:Nachlass 1022:equality 983:Lewis's 818:Formulas 765:, often 430:function 132:, where 3696:Related 3493:Diagram 3391: ( 3370:Hilbert 3355:Systems 3350:Theorem 3228:of the 3173:systems 2953:Formula 2948:Grammar 2864: ( 2808:General 2521:Forcing 2506:Element 2426:Monadic 2201:paradox 2142:Theorem 2078:General 1843:3094793 1793:Sources 1634:(1918) 1565:, from 1547:0037278 1539:1969375 1063:Leibniz 1051:History 845:logical 683:,  480:mapping 226:α 188:Example 3459:finite 3222:Skolem 3175:  3150:Theory 3118:Symbol 3108:String 3091:atomic 2968:ground 2963:closed 2958:atomic 2914:ground 2877:syntax 2773:binary 2700:domain 2617:Finite 2382:finite 2240:Logics 2199:  2147:Theory 2017:  2010:& 1940:  1909:  1841:  1833:  1782:  1545:  1537:  1499:  1475:  1452:  1411:  1233:, and 1221:, and 771:logics 501:using 335:where 47:models 3449:Model 3197:Peano 3054:Proof 2894:Arity 2823:Naive 2710:image 2642:Fuzzy 2602:Empty 2551:union 2496:Class 2137:Model 2127:Lemma 2085:Axiom 1949:Draft 1839:JSTOR 1535:JSTOR 1195:in a 1140:over 968:Lewis 857:Modal 804:Terms 428:is a 252:is a 3572:Type 3375:list 3179:list 3156:list 3145:Term 3079:rank 2973:open 2867:list 2679:Maps 2584:sets 2443:Free 2413:list 2163:list 2090:list 2015:ISBN 1938:ISBN 1907:ISBN 1831:ISSN 1780:ISBN 1742:via 1717:via 1497:ISBN 1473:ISBN 1450:ISBN 1409:ISBN 1244:and 1144:and 1136:, a 1132:and 1092:and 1081:and 744:The 493:and 474:and 203:and 164:The 65:and 3259:of 3241:of 3189:of 2721:Sur 2695:Map 2502:Ur- 2484:Set 2033:at 1885:," 1614:doi 1527:doi 1335:of 1199:by 1152:of 970:'s 897:ZFC 851:or 796:or 268:to 218:to 154:or 144:bit 104:of 88:). 73:). 30:In 3804:: 3645:NP 3269:: 3263:: 3193:: 2870:), 2725:Bi 2717:In 1975:, 1837:. 1825:. 1654:, 1638:, 1624:^ 1592:^ 1584:50 1543:MR 1541:. 1533:. 1523:51 1521:. 1355:. 1339:. 1237:. 1229:, 1217:, 1213:, 1104:. 1077:. 1041:, 1012:, 1008:, 987:, 985:S5 972:S4 777:. 753:. 417:. 222:: 158:. 137:≠ 127:× 109:× 42:. 34:, 3725:/ 3640:P 3395:) 3181:) 3177:( 3074:∀ 3069:! 3064:∃ 3025:= 3020:↔ 3015:→ 3010:∧ 3005:√ 3000:ÂŹ 2723:/ 2719:/ 2693:/ 2504:) 2500:( 2387:∞ 2377:3 2165:) 2063:e 2056:t 2049:v 1979:. 1951:. 1946:. 1915:. 1845:. 1827:9 1816:. 1616:: 1549:. 1529:: 1417:. 1303:. 1158:B 1156:× 1154:A 1146:B 1142:A 1134:B 1130:A 956:K 899:. 881:; 832:; 814:; 800:; 725:. 716:A 713:f 707:= 698:A 692:f 681:f 666:. 657:I 651:R 648:= 639:R 610:I 604:R 592:R 563:R 548:I 542:R 532:R 512:R 459:. 454:T 450:R 446:R 440:I 415:R 411:I 397:, 394:I 386:T 382:R 378:R 356:T 352:R 341:R 337:I 323:, 320:I 314:R 309:T 305:R 294:R 278:S 274:π 270:Q 266:S 262:π 258:q 250:p 246:p 243:π 240:q 236:q 232:a 228:a 224:q 220:S 216:Q 212:π 208:Q 201:S 139:Y 135:X 129:Y 125:X 116:X 111:X 107:X 84:( 20:)

Index

Calculus of relations
mathematical logic
free variables
models
algebraic semantics
deductive systems
representation
representation theorem for Boolean algebras
Stone duality
Czelakowski 2003
abstract algebraic logic
Leibniz operator
Czelakowski 2003
binary relation
power set
heterogeneous relation
bit
inclusion
composition of relations
converse relation
logical matrix
transpose
matrix multiplication
erotetics
statements
questions
presupposition
Socratic method
partial function
total relation

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