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Lebesgue measure

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2029: 915: 536: 3715: 742: 366: 3612: 1081: 910:{\displaystyle \lambda ^{\!*\!}(E)=\inf \left\{\sum _{k=1}^{\infty }\operatorname {vol} (C_{k}):{(C_{k})_{k\in \mathbb {N} }}{\text{ is a sequence of products of open intervals with }}E\subset \bigcup _{k=1}^{\infty }C_{k}\right\}.} 699: 3829: 2330:
of Lebesgue-measurable sets are Lebesgue-measurable. (Not a consequence of 2 and 3, because a family of sets that is closed under complements and disjoint countable unions does not need to be closed under countable unions:
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agrees with the Lebesgue measure on those sets for which it is defined; however, there are many more Lebesgue-measurable sets than there are Borel measurable sets. The Borel measure is translation-invariant, but not
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A Lebesgue-measurable set can be "squeezed" between a containing open set and a contained closed set. This property has been used as an alternative definition of Lebesgue measurability. More precisely,
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is used as a "mask" to "clip" that set, hinting at the existence of sets for which the Lebesgue outer measure does not give the Lebesgue measure. (Such sets are, in fact, not Lebesgue-measurable.)
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That characterizes the Lebesgue outer measure. Whether this outer measure translates to the Lebesgue measure proper depends on an additional condition. This condition is tested by taking subsets
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All the above may be succinctly summarized as follows (although the last two assertions are non-trivially linked to the following):
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of the real numbers is reduced to its outer measure by coverage by sets of open intervals. Each of these sets of intervals
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is a Lebesgue-measurable set, then it is "approximately open" and "approximately closed" in the sense of Lebesgue measure.
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of the lengths from among all possible such sets. Intuitively, it is the total length of those interval sets which fit
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Henri Lebesgue described this measure in the year 1901 which, a year after, was followed up by his description of the
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showed that the existence of sets that are not Lebesgue-measurable is not provable within the framework of
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are said to be Lebesgue-measurable, with its Lebesgue measure being defined as its Lebesgue outer measure:
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Solovay, Robert M. (1970). "A model of set-theory in which every set of reals is Lebesgue-measurable".
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holds then all sets of reals are Lebesgue-measurable. Determinacy is however not compatible with the
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must not have some curious properties which causes a discrepancy in the measure of another set when
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is a subset of the union of the intervals, and so the intervals may include points which are not in
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The existence of sets that are not Lebesgue-measurable is a consequence of the set-theoretical
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set of real numbers has Lebesgue measure 0. In particular, the Lebesgue measure of the set of
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is Lebesgue-measurable. However, there are Lebesgue-measurable sets which are not Borel sets.
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is a generalization of the Lebesgue measure that is useful for measuring the subsets of
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can be generated using countable unions and intersections from open or closed sets.
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which has topological dimension 0 yet has positive 1-dimensional Lebesgue measure.
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The above definition can be generalised to higher dimensions as follows. For any
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with many surprising properties have been demonstrated, such as those of the
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gives its Lebesgue measure. Intuitively, this condition means that the set
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if, for every Δ > 0, it can be covered with countably many products of
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of intervals and is Lebesgue-measurable, and its Lebesgue measure is
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sets. The Hausdorff measure is not to be confused with the notion of
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The modern construction of the Lebesgue measure is an application of
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with respect to the Lebesgue measure. Their existence relies on the
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are subject to the outer measure. If for all possible such subsets
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A Lebesgue-measurable set can be "squeezed" between a containing
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that are not Lebesgue-measurable. Assuming the axiom of choice,
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is Lebesgue-measurable, one usually tries to find a "nicer" set
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Lebesgue measure (it can be obtained by small variation of the
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is Lebesgue-measurable, and its Lebesgue measure is the length
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there is no infinite-dimensional analogue of Lebesgue measure
1927: 5213: 859: is a sequence of products of open intervals with  2862:}, is also Lebesgue-measurable and has the same measure as 138:. Both were published as part of his dissertation in 1902. 78: 3313:-dimensional Lebesgue measure. An example of this is the 701:(a real number product) denote its volume. For any subset 115:. Sets that can be assigned a Lebesgue measure are called 3223:{\displaystyle \lambda (\times \times \cdots \times )=1.} 1218: 2000:, has a zero Lebesgue measure. In general, every proper 1297:
in a sense, since the union of these intervals contains
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The first part of the definition states that the subset
73:= 1, 2, or 3, it coincides with the standard measure of 3359: 2661:{\displaystyle \lambda (G\setminus F)<\varepsilon } 1667:
have outer measures whose sum is the outer measure of
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equivalent to it). On the other hand, a set may have
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can be calculated in terms of Euler's gamma function.
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between the two sets consists only of the end points
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The Lebesgue measure also has the property of being
5422: 4249:. Cambridge: Cambridge University Press. pp.  3823: 3709: 3572: 3461: 3222: 3104: 3061:) is also Lebesgue-measurable and has the measure 3027: 2984: 2933: 2913: 2891: 2660: 2619: 2587: 2567: 2547: 2521: 2451: 2259:) of the measures of the involved measurable sets. 2221: 2070: 2044: 1992: 1966: 1872: 1739: 1719: 1699: 1679: 1659: 1639: 1619: 1599: 1579: 1559: 1539: 1519: 1499: 1479: 1459: 1439: 1419: 1396: 1372: 1352: 1332: 1309: 1289: 1269: 1249: 1205: 1175: 1155: 1098: 1075: 964: 932: 909: 728: 693: 611: 556: 530: 349: 308: 280: 239: 217: 179: 4200:Transactions of the American Mathematical Society 4102:(3rd ed.). New York: Macmillan. p. 56. 3934:and is a generalization of the Lebesgue measure ( 1141: 1137: 1045: 1041: 1015: 1011: 991: 987: 755: 751: 612:{\displaystyle C=I_{1}\times \cdots \times I_{n}} 379: 375: 335: 331: 5732: 4001:Lebesgue measure of the set of Liouville numbers 3638: 3073: 2529:is Lebesgue-measurable if and only if for every 2032:Translation invariance: The Lebesgue measure of 770: 480: is a sequence of open intervals with  394: 3266:intervals whose total volume is at most Δ. All 3105:{\displaystyle \left|\det(T)\right|\lambda (A)} 1156:{\displaystyle \lambda (E)=\lambda ^{\!*\!}(E)} 3724:to be Lebesgue-measurable if for every subset 5229: 4323: 4206:(1). American Mathematical Society: 107–112. 3909: 119:; the measure of the Lebesgue-measurable set 5068:Riesz–Markov–Kakutani representation theorem 2992:is also Lebesgue-measurable and has measure 2985:{\displaystyle \delta A=\{\delta x:x\in A\}} 2979: 2958: 2446: 2443: 2431: 2425: 2413: 2407: 2395: 2389: 2377: 2371: 2347: 2338: 1380:. The Lebesgue outer measure emerges as the 3938:with addition is a locally compact group). 3902:in the absence of the axiom of choice (see 729:{\displaystyle E\subseteq \mathbb {R^{n}} } 5653:Vitale's random Brunn–Minkowski inequality 5236: 5222: 5163:Vitale's random Brunn–Minkowski inequality 4330: 4316: 3332:only by a null set (in the sense that the 3127:containing all products of intervals, and 2694:is Lebesgue-measurable then there exist a 4242: 4211: 4167: 4144: 3841:, and the Lebesgue measure is defined by 3817: 3566: 3455: 3028:{\displaystyle \delta ^{n}\lambda \,(A).} 3012: 2515: 1954: 1866: 958: 850: 720: 716: 471: 302: 233: 4055: 2280:) ≄ 0 for every Lebesgue-measurable set 2243:disjoint Lebesgue-measurable sets, then 2027: 4273: 2266:is Lebesgue-measurable, then so is its 1627:of the real numbers, the partitions of 965:{\displaystyle A\subseteq \mathbb {R} } 309:{\displaystyle E\subseteq \mathbb {R} } 14: 5733: 4190: 4094: 4062:Annali di Matematica Pura ed Applicata 3834:These Lebesgue-measurable sets form a 3285:then it is a null set with respect to 5217: 4311: 3957:, for example, surfaces or curves in 3462:{\displaystyle B=\prod _{i=1}^{n}\,,} 2522:{\displaystyle E\subset \mathbb {R} } 1687:, then the outer Lebesgue measure of 50:, is the standard way of assigning a 5666:Applications & related 5176:Applications & related 4147:"What sets are Lebesgue-measurable?" 3360:Construction of the Lebesgue measure 3352:) is a null set) and then show that 3120:The Lebesgue-measurable sets form a 5585:Marcinkiewicz interpolation theorem 2777:on non-empty open sets, and so its 2620:{\displaystyle F\subset E\subset G} 2004:has a zero Lebesgue measure in its 350:{\displaystyle \lambda ^{\!*\!}(E)} 24: 5511:Symmetric decreasing rearrangement 5415: 4337: 4042:is also used, more strictly, as a 3686: 3659: 3320:In order to show that a given set 2792:is a Lebesgue-measurable set with 2341: 2247:is itself Lebesgue-measurable and 884: 794: 505: 418: 288:denote its length. For any subset 25: 5752: 4196:"A Jordan Curve of Positive Area" 3808: 2643: 2548:{\displaystyle \varepsilon >0} 1467:into two partitions: the part of 1404:most tightly and do not overlap. 5105:Lebesgue differentiation theorem 4986:CarathĂ©odory's extension theorem 3860:for any Lebesgue-measurable set 3366:CarathĂ©odory's extension theorem 1967:{\displaystyle \mathbb {R} ^{n}} 1832:, the area of the corresponding 1789:has the same measure, since the 944:, which requires that for every 85:. In general, it is also called 27:Concept of area in any dimension 4267: 4236: 4184: 4161: 4138: 4116: 4088: 4049: 4030: 3814: 3802: 3786: 3774: 3758: 3752: 3678: 3672: 3632: 3626: 3563: 3537: 3510: 3504: 3452: 3426: 3211: 3208: 3196: 3184: 3172: 3166: 3154: 3151: 3099: 3093: 3082: 3076: 3019: 3013: 2649: 2637: 2212: 2197: 2189: 2174: 2166: 2151: 2144: 2138: 2086:has the following properties: 1912:are examples of sets that are 1382:greatest lower bound (infimum) 1150: 1144: 1126: 1120: 1067: 1048: 1030: 1018: 1000: 994: 839: 825: 818: 805: 764: 758: 688: 675: 660: 647: 638: 632: 460: 446: 439: 426: 388: 382: 344: 338: 263: 257: 212: 200: 174: 162: 13: 1: 5481:Convergence almost everywhere 5243: 4023: 2023: 1895:that have Lebesgue measure 0. 1854:is 0, even though the set is 141: 3243: 3141:on that σ-algebra with 2892:{\displaystyle \delta >0} 2295:are Lebesgue-measurable and 1873:{\displaystyle \mathbb {R} } 1232: 1225:do exist; an example is the 1217:is not Lebesgue-measurable. 281:{\displaystyle \ell (I)=b-a} 240:{\displaystyle \mathbb {R} } 7: 5648:PrĂ©kopa–Leindler inequality 5501:Locally integrable function 5423:{\displaystyle L^{\infty }} 5158:PrĂ©kopa–Leindler inequality 4058:"IntĂ©grale, Longueur, Aire" 3979: 3900:Zermelo–Fraenkel set theory 2873:is Lebesgue-measurable and 2822:is Lebesgue-measurable and 2128:is Lebesgue-measurable and 1942:is another unusual example. 1750: 10: 5757: 5394:Square-integrable function 5100:Lebesgue's density theorem 3996:Lebesgue's density theorem 3910:Relation to other measures 3368:. It proceeds as follows. 3247: 3049:is a measurable subset of 2255:) is equal to the sum (or 1507:and the remaining part of 1447:as an instrument to split 1427:of the real numbers using 1213:that does not satisfy the 111:, in particular to define 5741:Measures (measure theory) 5665: 5643:Minkowski–Steiner formula 5613: 5575: 5519: 5468: 5402: 5346: 5315: 5251: 5175: 5153:Minkowski–Steiner formula 5123: 5083: 5076: 4976: 4968:Projection-valued measure 4869: 4762: 4531: 4404: 4345: 4243:Carothers, N. L. (2000). 3949:of lower dimensions than 3315:Smith–Volterra–Cantor set 2758:Lebesgue measure is both 5626:Isoperimetric inequality 5136:Isoperimetric inequality 5115:Vitali–Hahn–Saks theorem 4444:CarathĂ©odory's criterion 2802:), then every subset of 2555:there exist an open set 2319:). (A consequence of 2.) 2082:The Lebesgue measure on 1547:: the set difference of 107:. It is used throughout 5631:Brunn–Minkowski theorem 5141:Brunn–Minkowski theorem 5010:Decomposition theorems 4046:of 3-dimensional volume 3720:We then define the set 2934:{\displaystyle \delta } 2490:is Lebesgue-measurable. 1993:{\displaystyle n\geq 2} 1587:. These partitions of 619:of open intervals, let 218:{\displaystyle I=(a,b)} 69:. For lower dimensions 5486:Convergence in measure 5424: 5188:Descriptive set theory 5088:Disintegration theorem 4523:Universally measurable 4134:– via Knowledge. 3930:can be defined on any 3825: 3711: 3574: 3536: 3463: 3425: 3224: 3106: 3029: 2986: 2935: 2915: 2893: 2662: 2621: 2589: 2569: 2549: 2523: 2453: 2223: 2079: 2072: 2046: 1994: 1968: 1874: 1741: 1721: 1701: 1681: 1661: 1641: 1621: 1601: 1581: 1561: 1541: 1521: 1501: 1487:which intersects with 1481: 1461: 1441: 1421: 1398: 1374: 1354: 1334: 1311: 1291: 1271: 1251: 1215:CarathĂ©odory criterion 1207: 1177: 1163:. The set of all such 1157: 1108:CarathĂ©odory criterion 1100: 1077: 966: 942:CarathĂ©odory criterion 934: 911: 888: 798: 730: 695: 613: 558: 532: 509: 422: 351: 310: 282: 241: 219: 181: 5600:Riesz–Fischer theorem 5425: 5384:Polarization identity 4990:Convergence theorems 4449:Cylindrical σ-algebra 4277:Annals of Mathematics 4172:. math stack exchange 4149:. math stack exchange 4056:Lebesgue, H. (1902). 3972:It can be shown that 3932:locally compact group 3889:Banach–Tarski paradox 3826: 3712: 3575: 3516: 3464: 3405: 3389:is a set of the form 3303:topological dimension 3225: 3136:translation-invariant 3107: 3043:linear transformation 3030: 2987: 2936: 2916: 2894: 2663: 2622: 2590: 2570: 2550: 2524: 2454: 2224: 2073: 2047: 2031: 1995: 1969: 1875: 1742: 1722: 1702: 1682: 1662: 1642: 1622: 1602: 1582: 1562: 1542: 1522: 1502: 1482: 1462: 1442: 1422: 1399: 1375: 1355: 1335: 1312: 1292: 1272: 1252: 1208: 1178: 1158: 1101: 1078: 967: 935: 912: 868: 778: 731: 696: 614: 559: 533: 489: 402: 352: 311: 283: 247:of real numbers, let 242: 220: 182: 5605:Riesz–Thorin theorem 5448:Infimum and supremum 5407: 5333:Lebesgue integration 5058:Minkowski inequality 4932:Cylinder set measure 4817:Infinite-dimensional 4432:equivalence relation 4362:Lebesgue integration 4018:Peano–Jordan measure 3739: 3613: 3595:, we can define its 3495: 3396: 3334:symmetric difference 3270:sets are null sets. 3145: 3065: 2996: 2946: 2925: 2905: 2877: 2806:is also a null set. 2773:Lebesgue measure is 2631: 2599: 2579: 2559: 2533: 2505: 2335: 2132: 2056: 2036: 1978: 1949: 1900:axiom of determinacy 1862: 1731: 1711: 1691: 1671: 1651: 1631: 1611: 1591: 1571: 1551: 1531: 1511: 1491: 1471: 1451: 1431: 1411: 1388: 1364: 1344: 1321: 1301: 1281: 1261: 1241: 1197: 1167: 1114: 1090: 979: 948: 924: 743: 705: 623: 571: 548: 367: 323: 292: 251: 229: 191: 153: 113:Lebesgue integration 5567:Young's convolution 5506:Measurable function 5389:Pythagorean theorem 5379:Parseval's identity 5328:Integrable function 5053:Hölder's inequality 4915:of random variables 4877:Measurable function 4764:Particular measures 4353:Absolute continuity 3967:Hausdorff dimension 3885:non-measurable sets 3328:which differs from 3279:Hausdorff dimension 3037:More generally, if 2071:{\displaystyle A+t} 1938:construction). The 1223:non-measurable sets 123:is here denoted by 117:Lebesgue-measurable 90:-dimensional volume 18:Lebesgue measurable 5688:Probability theory 5590:Plancherel theorem 5496:Integral transform 5443:Chebyshev distance 5420: 5369:Euclidean distance 5302:Minkowski distance 5193:Probability theory 4518:Transverse measure 4496:Non-measurable set 4478:Locally measurable 4192:Osgood, William F. 4074:10.1007/BF02420592 4006:Non-measurable set 3821: 3707: 3665: 3570: 3459: 3309:and have positive 3220: 3102: 3025: 2982: 2931: 2911: 2889: 2810:, every subset of 2658: 2617: 2585: 2565: 2545: 2519: 2449: 2219: 2080: 2068: 2042: 1990: 1964: 1870: 1801:, which each have 1737: 1717: 1697: 1677: 1657: 1637: 1617: 1597: 1577: 1557: 1537: 1517: 1497: 1477: 1457: 1437: 1417: 1394: 1370: 1350: 1333:{\displaystyle E,} 1330: 1307: 1287: 1267: 1247: 1203: 1173: 1153: 1096: 1073: 962: 930: 907: 726: 691: 609: 554: 543:rectangular cuboid 528: 347: 306: 278: 237: 215: 180:{\displaystyle I=} 177: 60:higher dimensional 5728: 5727: 5661: 5660: 5476:Almost everywhere 5261: &  5211: 5210: 5171: 5170: 4900:almost everywhere 4846:Spherical measure 4744:Strictly positive 4672:Projection-valued 4412:Almost everywhere 4385:Probability space 4280:. Second Series. 3943:Hausdorff measure 3896:Robert M. Solovay 3694: 3646: 2914:{\displaystyle A} 2826:is an element of 2775:strictly positive 2766:, and so it is a 2588:{\displaystyle F} 2575:and a closed set 2568:{\displaystyle G} 2096:cartesian product 2045:{\displaystyle A} 1926:are simple plane 1889:Liouville numbers 1852:algebraic numbers 1810:Cartesian product 1740:{\displaystyle E} 1720:{\displaystyle E} 1700:{\displaystyle E} 1680:{\displaystyle A} 1660:{\displaystyle E} 1640:{\displaystyle A} 1620:{\displaystyle A} 1600:{\displaystyle A} 1580:{\displaystyle E} 1560:{\displaystyle A} 1540:{\displaystyle E} 1520:{\displaystyle A} 1500:{\displaystyle E} 1480:{\displaystyle A} 1460:{\displaystyle A} 1440:{\displaystyle E} 1420:{\displaystyle A} 1397:{\displaystyle E} 1373:{\displaystyle E} 1353:{\displaystyle E} 1310:{\displaystyle E} 1290:{\displaystyle E} 1270:{\displaystyle I} 1250:{\displaystyle E} 1206:{\displaystyle E} 1176:{\displaystyle E} 1106:that satisfy the 1099:{\displaystyle E} 933:{\displaystyle E} 860: 566:Cartesian product 557:{\displaystyle C} 481: 357:is defined as an 136:Lebesgue integral 16:(Redirected from 5748: 5678:Fourier analysis 5636:Milman's reverse 5619: 5617:Lebesgue measure 5611: 5610: 5595:Riemann–Lebesgue 5438:Bounded function 5429: 5427: 5426: 5421: 5419: 5418: 5338:Taxicab geometry 5293:Measurable space 5238: 5231: 5224: 5215: 5214: 5146:Milman's reverse 5129: 5127:Lebesgue measure 5081: 5080: 4485: 4471:infimum/supremum 4392:Measurable space 4332: 4325: 4318: 4309: 4308: 4302: 4301: 4271: 4265: 4264: 4240: 4234: 4233: 4215: 4194:(January 1903). 4188: 4182: 4181: 4179: 4177: 4165: 4159: 4158: 4156: 4154: 4142: 4136: 4135: 4133: 4131: 4126:. 29 August 2022 4120: 4114: 4113: 4092: 4086: 4085: 4053: 4047: 4034: 3859: 3830: 3828: 3827: 3822: 3801: 3800: 3773: 3772: 3751: 3750: 3716: 3714: 3713: 3708: 3703: 3699: 3695: 3692: 3690: 3689: 3664: 3663: 3662: 3625: 3624: 3579: 3577: 3576: 3571: 3562: 3561: 3549: 3548: 3535: 3530: 3487: 3468: 3466: 3465: 3460: 3451: 3450: 3438: 3437: 3424: 3419: 3380: 3291:Euclidean metric 3229: 3227: 3226: 3221: 3111: 3109: 3108: 3103: 3089: 3085: 3034: 3032: 3031: 3026: 3008: 3007: 2991: 2989: 2988: 2983: 2940: 2938: 2937: 2932: 2920: 2918: 2917: 2912: 2898: 2896: 2895: 2890: 2781:is the whole of 2755:) = 0. 2681:and a contained 2667: 2665: 2664: 2659: 2626: 2624: 2623: 2618: 2594: 2592: 2591: 2586: 2574: 2572: 2571: 2566: 2554: 2552: 2551: 2546: 2528: 2526: 2525: 2520: 2518: 2458: 2456: 2455: 2450: 2228: 2226: 2225: 2220: 2215: 2210: 2209: 2200: 2192: 2187: 2186: 2177: 2169: 2164: 2163: 2154: 2077: 2075: 2074: 2069: 2051: 2049: 2048: 2043: 1999: 1997: 1996: 1991: 1973: 1971: 1970: 1965: 1963: 1962: 1957: 1893:uncountable sets 1891:are examples of 1879: 1877: 1876: 1871: 1869: 1839:Moreover, every 1831: 1788: 1773: 1746: 1744: 1743: 1738: 1726: 1724: 1723: 1718: 1706: 1704: 1703: 1698: 1686: 1684: 1683: 1678: 1666: 1664: 1663: 1658: 1646: 1644: 1643: 1638: 1626: 1624: 1623: 1618: 1606: 1604: 1603: 1598: 1586: 1584: 1583: 1578: 1566: 1564: 1563: 1558: 1546: 1544: 1543: 1538: 1527:which is not in 1526: 1524: 1523: 1518: 1506: 1504: 1503: 1498: 1486: 1484: 1483: 1478: 1466: 1464: 1463: 1458: 1446: 1444: 1443: 1438: 1426: 1424: 1423: 1418: 1403: 1401: 1400: 1395: 1379: 1377: 1376: 1371: 1359: 1357: 1356: 1351: 1339: 1337: 1336: 1331: 1316: 1314: 1313: 1308: 1296: 1294: 1293: 1288: 1276: 1274: 1273: 1268: 1256: 1254: 1253: 1248: 1212: 1210: 1209: 1204: 1182: 1180: 1179: 1174: 1162: 1160: 1159: 1154: 1143: 1142: 1105: 1103: 1102: 1097: 1082: 1080: 1079: 1074: 1066: 1065: 1047: 1046: 1017: 1016: 993: 992: 971: 969: 968: 963: 961: 939: 937: 936: 931: 916: 914: 913: 908: 903: 899: 898: 897: 887: 882: 861: 858: 856: 855: 854: 853: 837: 836: 817: 816: 797: 792: 757: 756: 735: 733: 732: 727: 725: 724: 723: 700: 698: 697: 692: 687: 686: 659: 658: 618: 616: 615: 610: 608: 607: 589: 588: 563: 561: 560: 555: 537: 535: 534: 529: 524: 520: 519: 518: 508: 503: 482: 479: 477: 476: 475: 474: 458: 457: 438: 437: 421: 416: 381: 380: 356: 354: 353: 348: 337: 336: 315: 313: 312: 307: 305: 287: 285: 284: 279: 246: 244: 243: 238: 236: 224: 222: 221: 216: 186: 184: 183: 178: 40:Lebesgue measure 21: 5756: 5755: 5751: 5750: 5749: 5747: 5746: 5745: 5731: 5730: 5729: 5724: 5657: 5614: 5609: 5571: 5547:Hausdorff–Young 5527:Babenko–Beckner 5515: 5464: 5414: 5410: 5408: 5405: 5404: 5398: 5342: 5311: 5307:Sequence spaces 5247: 5242: 5212: 5207: 5203:Spectral theory 5183:Convex analysis 5167: 5124: 5119: 5072: 4972: 4920:in distribution 4865: 4758: 4588:Logarithmically 4527: 4483: 4466:Essential range 4400: 4341: 4336: 4306: 4305: 4290:10.2307/1970696 4272: 4268: 4261: 4241: 4237: 4213:10.2307/1986455 4189: 4185: 4175: 4173: 4168:Asaf Karagila. 4166: 4162: 4152: 4150: 4145:Asaf Karagila. 4143: 4139: 4129: 4127: 4122: 4121: 4117: 4110: 4093: 4089: 4054: 4050: 4035: 4031: 4026: 3982: 3912: 3904:Solovay's model 3869:axiom of choice 3842: 3796: 3792: 3768: 3764: 3746: 3742: 3740: 3737: 3736: 3691: 3685: 3684: 3658: 3657: 3650: 3645: 3641: 3620: 3616: 3614: 3611: 3610: 3557: 3553: 3544: 3540: 3531: 3520: 3496: 3493: 3492: 3485: 3478: 3473: 3446: 3442: 3433: 3429: 3420: 3409: 3397: 3394: 3393: 3372: 3362: 3297:(or any metric 3273:If a subset of 3252: 3246: 3146: 3143: 3142: 3072: 3068: 3066: 3063: 3062: 3003: 2999: 2997: 2994: 2993: 2947: 2944: 2943: 2926: 2923: 2922: 2906: 2903: 2902: 2878: 2875: 2874: 2832:translation of 2714: 2701: 2688: 2678: 2632: 2629: 2628: 2600: 2597: 2596: 2580: 2577: 2576: 2560: 2557: 2556: 2534: 2531: 2530: 2514: 2506: 2503: 2502: 2336: 2333: 2332: 2299:is a subset of 2257:infinite series 2211: 2205: 2201: 2196: 2188: 2182: 2178: 2173: 2165: 2159: 2155: 2150: 2133: 2130: 2129: 2123: 2114: 2107: 2057: 2054: 2053: 2037: 2034: 2033: 2026: 1979: 1976: 1975: 1958: 1953: 1952: 1950: 1947: 1946: 1918:axiom of choice 1904:axiom of choice 1887:and the set of 1865: 1863: 1860: 1859: 1813: 1778: 1765: 1753: 1732: 1729: 1728: 1712: 1709: 1708: 1692: 1689: 1688: 1672: 1669: 1668: 1652: 1649: 1648: 1632: 1629: 1628: 1612: 1609: 1608: 1592: 1589: 1588: 1572: 1569: 1568: 1552: 1549: 1548: 1532: 1529: 1528: 1512: 1509: 1508: 1492: 1489: 1488: 1472: 1469: 1468: 1452: 1449: 1448: 1432: 1429: 1428: 1412: 1409: 1408: 1389: 1386: 1385: 1365: 1362: 1361: 1345: 1342: 1341: 1322: 1319: 1318: 1302: 1299: 1298: 1282: 1279: 1278: 1262: 1259: 1258: 1242: 1239: 1238: 1235: 1198: 1195: 1194: 1168: 1165: 1164: 1136: 1132: 1115: 1112: 1111: 1091: 1088: 1087: 1061: 1057: 1040: 1036: 1010: 1006: 986: 982: 980: 977: 976: 957: 949: 946: 945: 925: 922: 921: 893: 889: 883: 872: 857: 849: 842: 838: 832: 828: 824: 812: 808: 793: 782: 777: 773: 750: 746: 744: 741: 740: 719: 715: 714: 706: 703: 702: 682: 678: 654: 650: 624: 621: 620: 603: 599: 584: 580: 572: 569: 568: 549: 546: 545: 514: 510: 504: 493: 478: 470: 463: 459: 453: 449: 445: 433: 429: 417: 406: 401: 397: 374: 370: 368: 365: 364: 330: 326: 324: 321: 320: 316:, the Lebesgue 301: 293: 290: 289: 252: 249: 248: 232: 230: 227: 226: 192: 189: 188: 154: 151: 150: 144: 28: 23: 22: 15: 12: 11: 5: 5754: 5744: 5743: 5726: 5725: 5723: 5722: 5721: 5720: 5715: 5705: 5700: 5695: 5690: 5685: 5680: 5675: 5669: 5667: 5663: 5662: 5659: 5658: 5656: 5655: 5650: 5645: 5640: 5639: 5638: 5628: 5622: 5620: 5608: 5607: 5602: 5597: 5592: 5587: 5581: 5579: 5573: 5572: 5570: 5569: 5564: 5559: 5554: 5549: 5544: 5539: 5534: 5529: 5523: 5521: 5517: 5516: 5514: 5513: 5508: 5503: 5498: 5493: 5491:Function space 5488: 5483: 5478: 5472: 5470: 5466: 5465: 5463: 5462: 5457: 5456: 5455: 5445: 5440: 5434: 5432: 5417: 5413: 5400: 5399: 5397: 5396: 5391: 5386: 5381: 5376: 5371: 5366: 5364:Cauchy–Schwarz 5361: 5355: 5353: 5344: 5343: 5341: 5340: 5335: 5330: 5324: 5322: 5313: 5312: 5310: 5309: 5304: 5299: 5290: 5285: 5284: 5283: 5273: 5265: 5263:Hilbert spaces 5255: 5253: 5252:Basic concepts 5249: 5248: 5241: 5240: 5233: 5226: 5218: 5209: 5208: 5206: 5205: 5200: 5195: 5190: 5185: 5179: 5177: 5173: 5172: 5169: 5168: 5166: 5165: 5160: 5155: 5150: 5149: 5148: 5138: 5132: 5130: 5121: 5120: 5118: 5117: 5112: 5110:Sard's theorem 5107: 5102: 5097: 5096: 5095: 5093:Lifting theory 5084: 5078: 5074: 5073: 5071: 5070: 5065: 5060: 5055: 5050: 5049: 5048: 5046:Fubini–Tonelli 5038: 5033: 5028: 5027: 5026: 5021: 5016: 5008: 5007: 5006: 5001: 4996: 4988: 4982: 4980: 4974: 4973: 4971: 4970: 4965: 4960: 4955: 4950: 4945: 4940: 4934: 4929: 4928: 4927: 4925:in probability 4922: 4912: 4907: 4902: 4896: 4895: 4894: 4889: 4884: 4873: 4871: 4867: 4866: 4864: 4863: 4858: 4853: 4848: 4843: 4838: 4837: 4836: 4826: 4821: 4820: 4819: 4809: 4804: 4799: 4794: 4789: 4784: 4779: 4774: 4768: 4766: 4760: 4759: 4757: 4756: 4751: 4746: 4741: 4736: 4731: 4726: 4721: 4716: 4711: 4706: 4705: 4704: 4699: 4694: 4684: 4679: 4674: 4669: 4659: 4654: 4649: 4644: 4639: 4634: 4632:Locally finite 4629: 4619: 4614: 4609: 4604: 4599: 4594: 4584: 4579: 4574: 4569: 4564: 4559: 4554: 4549: 4544: 4538: 4536: 4529: 4528: 4526: 4525: 4520: 4515: 4510: 4505: 4504: 4503: 4493: 4488: 4480: 4475: 4474: 4473: 4463: 4458: 4457: 4456: 4446: 4441: 4436: 4435: 4434: 4424: 4419: 4414: 4408: 4406: 4402: 4401: 4399: 4398: 4389: 4388: 4387: 4377: 4372: 4364: 4359: 4349: 4347: 4346:Basic concepts 4343: 4342: 4339:Measure theory 4335: 4334: 4327: 4320: 4312: 4304: 4303: 4266: 4259: 4235: 4183: 4160: 4137: 4124:"Lebesgue-Maß" 4115: 4108: 4087: 4048: 4028: 4027: 4025: 4022: 4021: 4020: 4015: 4014: 4013: 4003: 3998: 3993: 3988: 3981: 3978: 3911: 3908: 3877:Vitali theorem 3832: 3831: 3820: 3816: 3813: 3810: 3807: 3804: 3799: 3795: 3791: 3788: 3785: 3782: 3779: 3776: 3771: 3767: 3763: 3760: 3757: 3754: 3749: 3745: 3718: 3717: 3706: 3702: 3698: 3688: 3683: 3680: 3677: 3674: 3671: 3668: 3661: 3656: 3653: 3649: 3644: 3640: 3637: 3634: 3631: 3628: 3623: 3619: 3581: 3580: 3569: 3565: 3560: 3556: 3552: 3547: 3543: 3539: 3534: 3529: 3526: 3523: 3519: 3515: 3512: 3509: 3506: 3503: 3500: 3483: 3476: 3470: 3469: 3458: 3454: 3449: 3445: 3441: 3436: 3432: 3428: 3423: 3418: 3415: 3412: 3408: 3404: 3401: 3361: 3358: 3248:Main article: 3245: 3242: 3231: 3230: 3219: 3216: 3213: 3210: 3207: 3204: 3201: 3198: 3195: 3192: 3189: 3186: 3183: 3180: 3177: 3174: 3171: 3168: 3165: 3162: 3159: 3156: 3153: 3150: 3131:is the unique 3114: 3113: 3101: 3098: 3095: 3092: 3088: 3084: 3081: 3078: 3075: 3071: 3035: 3024: 3021: 3018: 3015: 3011: 3006: 3002: 2981: 2978: 2975: 2972: 2969: 2966: 2963: 2960: 2957: 2954: 2951: 2930: 2910: 2888: 2885: 2882: 2867: 2816: 2814:is measurable. 2786: 2771: 2760:locally finite 2756: 2743:) =  2710: 2697: 2684: 2674: 2669: 2657: 2654: 2651: 2648: 2645: 2642: 2639: 2636: 2616: 2613: 2610: 2607: 2604: 2584: 2564: 2544: 2541: 2538: 2517: 2513: 2510: 2498: 2491: 2460: 2448: 2445: 2442: 2439: 2436: 2433: 2430: 2427: 2424: 2421: 2418: 2415: 2412: 2409: 2406: 2403: 2400: 2397: 2394: 2391: 2388: 2385: 2382: 2379: 2376: 2373: 2370: 2367: 2364: 2361: 2358: 2355: 2352: 2349: 2346: 2343: 2340: 2320: 2285: 2271: 2260: 2241:countably many 2237:disjoint union 2229: 2218: 2214: 2208: 2204: 2199: 2195: 2191: 2185: 2181: 2176: 2172: 2168: 2162: 2158: 2153: 2149: 2146: 2143: 2140: 2137: 2119: 2112: 2105: 2067: 2064: 2061: 2041: 2025: 2022: 2021: 2020: 2009: 1989: 1986: 1983: 1961: 1956: 1943: 1921: 1914:not measurable 1907: 1896: 1881: 1868: 1844: 1837: 1806: 1752: 1749: 1736: 1716: 1696: 1676: 1656: 1636: 1616: 1596: 1576: 1556: 1536: 1516: 1496: 1476: 1456: 1436: 1416: 1393: 1369: 1349: 1329: 1326: 1306: 1286: 1266: 1246: 1234: 1231: 1202: 1172: 1152: 1149: 1146: 1140: 1135: 1131: 1128: 1125: 1122: 1119: 1095: 1084: 1083: 1072: 1069: 1064: 1060: 1056: 1053: 1050: 1044: 1039: 1035: 1032: 1029: 1026: 1023: 1020: 1014: 1009: 1005: 1002: 999: 996: 990: 985: 960: 956: 953: 929: 918: 917: 906: 902: 896: 892: 886: 881: 878: 875: 871: 867: 864: 852: 848: 845: 841: 835: 831: 827: 823: 820: 815: 811: 807: 804: 801: 796: 791: 788: 785: 781: 776: 772: 769: 766: 763: 760: 754: 749: 722: 718: 713: 710: 690: 685: 681: 677: 674: 671: 668: 665: 662: 657: 653: 649: 646: 643: 640: 637: 634: 631: 628: 606: 602: 598: 595: 592: 587: 583: 579: 576: 553: 539: 538: 527: 523: 517: 513: 507: 502: 499: 496: 492: 488: 485: 473: 469: 466: 462: 456: 452: 448: 444: 441: 436: 432: 428: 425: 420: 415: 412: 409: 405: 400: 396: 393: 390: 387: 384: 378: 373: 346: 343: 340: 334: 329: 304: 300: 297: 277: 274: 271: 268: 265: 262: 259: 256: 235: 214: 211: 208: 205: 202: 199: 196: 176: 173: 170: 167: 164: 161: 158: 143: 140: 48:Henri Lebesgue 46:mathematician 42:, named after 34:, a branch of 32:measure theory 26: 9: 6: 4: 3: 2: 5753: 5742: 5739: 5738: 5736: 5719: 5716: 5714: 5711: 5710: 5709: 5706: 5704: 5703:Sobolev space 5701: 5699: 5698:Real analysis 5696: 5694: 5691: 5689: 5686: 5684: 5683:Lorentz space 5681: 5679: 5676: 5674: 5673:Bochner space 5671: 5670: 5668: 5664: 5654: 5651: 5649: 5646: 5644: 5641: 5637: 5634: 5633: 5632: 5629: 5627: 5624: 5623: 5621: 5618: 5612: 5606: 5603: 5601: 5598: 5596: 5593: 5591: 5588: 5586: 5583: 5582: 5580: 5578: 5574: 5568: 5565: 5563: 5560: 5558: 5555: 5553: 5550: 5548: 5545: 5543: 5540: 5538: 5535: 5533: 5530: 5528: 5525: 5524: 5522: 5518: 5512: 5509: 5507: 5504: 5502: 5499: 5497: 5494: 5492: 5489: 5487: 5484: 5482: 5479: 5477: 5474: 5473: 5471: 5467: 5461: 5458: 5454: 5451: 5450: 5449: 5446: 5444: 5441: 5439: 5436: 5435: 5433: 5431: 5411: 5401: 5395: 5392: 5390: 5387: 5385: 5382: 5380: 5377: 5375: 5374:Hilbert space 5372: 5370: 5367: 5365: 5362: 5360: 5357: 5356: 5354: 5352: 5350: 5345: 5339: 5336: 5334: 5331: 5329: 5326: 5325: 5323: 5321: 5319: 5314: 5308: 5305: 5303: 5300: 5298: 5294: 5291: 5289: 5288:Measure space 5286: 5282: 5279: 5278: 5277: 5274: 5272: 5270: 5266: 5264: 5260: 5257: 5256: 5254: 5250: 5246: 5239: 5234: 5232: 5227: 5225: 5220: 5219: 5216: 5204: 5201: 5199: 5198:Real analysis 5196: 5194: 5191: 5189: 5186: 5184: 5181: 5180: 5178: 5174: 5164: 5161: 5159: 5156: 5154: 5151: 5147: 5144: 5143: 5142: 5139: 5137: 5134: 5133: 5131: 5128: 5122: 5116: 5113: 5111: 5108: 5106: 5103: 5101: 5098: 5094: 5091: 5090: 5089: 5086: 5085: 5082: 5079: 5077:Other results 5075: 5069: 5066: 5064: 5063:Radon–Nikodym 5061: 5059: 5056: 5054: 5051: 5047: 5044: 5043: 5042: 5039: 5037: 5036:Fatou's lemma 5034: 5032: 5029: 5025: 5022: 5020: 5017: 5015: 5012: 5011: 5009: 5005: 5002: 5000: 4997: 4995: 4992: 4991: 4989: 4987: 4984: 4983: 4981: 4979: 4975: 4969: 4966: 4964: 4961: 4959: 4956: 4954: 4951: 4949: 4946: 4944: 4941: 4939: 4935: 4933: 4930: 4926: 4923: 4921: 4918: 4917: 4916: 4913: 4911: 4908: 4906: 4903: 4901: 4898:Convergence: 4897: 4893: 4890: 4888: 4885: 4883: 4880: 4879: 4878: 4875: 4874: 4872: 4868: 4862: 4859: 4857: 4854: 4852: 4849: 4847: 4844: 4842: 4839: 4835: 4832: 4831: 4830: 4827: 4825: 4822: 4818: 4815: 4814: 4813: 4810: 4808: 4805: 4803: 4800: 4798: 4795: 4793: 4790: 4788: 4785: 4783: 4780: 4778: 4775: 4773: 4770: 4769: 4767: 4765: 4761: 4755: 4752: 4750: 4747: 4745: 4742: 4740: 4737: 4735: 4732: 4730: 4727: 4725: 4722: 4720: 4717: 4715: 4712: 4710: 4707: 4703: 4702:Outer regular 4700: 4698: 4697:Inner regular 4695: 4693: 4692:Borel regular 4690: 4689: 4688: 4685: 4683: 4680: 4678: 4675: 4673: 4670: 4668: 4664: 4660: 4658: 4655: 4653: 4650: 4648: 4645: 4643: 4640: 4638: 4635: 4633: 4630: 4628: 4624: 4620: 4618: 4615: 4613: 4610: 4608: 4605: 4603: 4600: 4598: 4595: 4593: 4589: 4585: 4583: 4580: 4578: 4575: 4573: 4570: 4568: 4565: 4563: 4560: 4558: 4555: 4553: 4550: 4548: 4545: 4543: 4540: 4539: 4537: 4535: 4530: 4524: 4521: 4519: 4516: 4514: 4511: 4509: 4506: 4502: 4499: 4498: 4497: 4494: 4492: 4489: 4487: 4481: 4479: 4476: 4472: 4469: 4468: 4467: 4464: 4462: 4459: 4455: 4452: 4451: 4450: 4447: 4445: 4442: 4440: 4437: 4433: 4430: 4429: 4428: 4425: 4423: 4420: 4418: 4415: 4413: 4410: 4409: 4407: 4403: 4397: 4393: 4390: 4386: 4383: 4382: 4381: 4380:Measure space 4378: 4376: 4373: 4371: 4369: 4365: 4363: 4360: 4358: 4354: 4351: 4350: 4348: 4344: 4340: 4333: 4328: 4326: 4321: 4319: 4314: 4313: 4310: 4299: 4295: 4291: 4287: 4283: 4279: 4278: 4270: 4262: 4260:9780521497565 4256: 4252: 4248: 4247: 4246:Real Analysis 4239: 4231: 4227: 4223: 4219: 4214: 4209: 4205: 4201: 4197: 4193: 4187: 4171: 4164: 4148: 4141: 4125: 4119: 4111: 4109:0-02-404151-3 4105: 4101: 4100:Real Analysis 4097: 4096:Royden, H. L. 4091: 4083: 4079: 4075: 4071: 4067: 4063: 4059: 4052: 4045: 4041: 4040: 4033: 4029: 4019: 4016: 4012: 4009: 4008: 4007: 4004: 4002: 3999: 3997: 3994: 3992: 3989: 3987: 3984: 3983: 3977: 3975: 3970: 3968: 3964: 3960: 3956: 3952: 3948: 3944: 3939: 3937: 3933: 3929: 3924: 3922: 3917: 3916:Borel measure 3907: 3905: 3901: 3897: 3892: 3890: 3886: 3882: 3878: 3874: 3870: 3865: 3863: 3857: 3853: 3849: 3845: 3840: 3838: 3818: 3811: 3805: 3797: 3793: 3789: 3783: 3780: 3777: 3769: 3765: 3761: 3755: 3747: 3743: 3735: 3734: 3733: 3731: 3727: 3723: 3704: 3700: 3696: 3681: 3675: 3669: 3666: 3654: 3651: 3647: 3642: 3635: 3629: 3621: 3617: 3609: 3608: 3607: 3605: 3601: 3598: 3597:outer measure 3594: 3590: 3586: 3567: 3558: 3554: 3550: 3545: 3541: 3532: 3527: 3524: 3521: 3517: 3513: 3507: 3501: 3498: 3491: 3490: 3489: 3486: 3479: 3456: 3447: 3443: 3439: 3434: 3430: 3421: 3416: 3413: 3410: 3406: 3402: 3399: 3392: 3391: 3390: 3388: 3384: 3379: 3375: 3369: 3367: 3357: 3355: 3351: 3347: 3343: 3339: 3335: 3331: 3327: 3323: 3318: 3316: 3312: 3308: 3304: 3300: 3296: 3292: 3288: 3284: 3280: 3276: 3271: 3269: 3265: 3261: 3257: 3251: 3241: 3239: 3237: 3217: 3214: 3205: 3202: 3199: 3193: 3190: 3187: 3181: 3178: 3175: 3169: 3163: 3160: 3157: 3148: 3140: 3137: 3134: 3130: 3126: 3124: 3119: 3118: 3117: 3096: 3090: 3086: 3079: 3069: 3060: 3056: 3052: 3048: 3044: 3040: 3036: 3022: 3016: 3009: 3004: 3000: 2976: 2973: 2970: 2967: 2964: 2961: 2955: 2952: 2949: 2941: 2928: 2908: 2886: 2883: 2880: 2872: 2868: 2865: 2861: 2857: 2853: 2849: 2845: 2841: 2838:, defined by 2837: 2833: 2829: 2825: 2821: 2817: 2815: 2811: 2809: 2803: 2801: 2795: 2791: 2787: 2784: 2780: 2776: 2772: 2769: 2768:Radon measure 2765: 2764:inner regular 2761: 2757: 2754: 2751: \  2750: 2746: 2742: 2739: \  2738: 2734: 2730: 2727: âŠ‡  2726: 2723: âŠ‡  2722: 2718: 2715: 2713: 2706: 2703: 2700: 2693: 2689: 2687: 2680: 2677: 2670: 2655: 2652: 2646: 2640: 2634: 2614: 2611: 2608: 2605: 2602: 2582: 2562: 2542: 2539: 2536: 2511: 2508: 2499: 2496: 2492: 2489: 2485: 2481: 2477: 2473: 2469: 2465: 2461: 2440: 2437: 2434: 2428: 2422: 2419: 2416: 2410: 2404: 2401: 2398: 2392: 2386: 2383: 2380: 2374: 2368: 2365: 2362: 2359: 2356: 2353: 2350: 2344: 2329: 2328:intersections 2325: 2321: 2318: 2314: 2310: 2306: 2302: 2298: 2294: 2290: 2286: 2283: 2279: 2275: 2272: 2269: 2265: 2261: 2258: 2254: 2250: 2246: 2242: 2238: 2234: 2230: 2216: 2206: 2202: 2193: 2183: 2179: 2170: 2160: 2156: 2147: 2141: 2135: 2127: 2122: 2118: 2111: 2104: 2101: 2097: 2093: 2089: 2088: 2087: 2085: 2078:are the same. 2065: 2062: 2059: 2039: 2030: 2018: 2016: 2013:volume of an 2010: 2007: 2006:ambient space 2003: 1987: 1984: 1981: 1959: 1944: 1941: 1937: 1933: 1929: 1925: 1924:Osgood curves 1922: 1919: 1915: 1911: 1908: 1905: 1901: 1897: 1894: 1890: 1886: 1882: 1857: 1853: 1849: 1845: 1842: 1838: 1835: 1829: 1825: 1821: 1817: 1811: 1807: 1804: 1800: 1796: 1792: 1786: 1782: 1777: 1776:open interval 1772: 1768: 1763: 1759: 1755: 1754: 1748: 1734: 1714: 1694: 1674: 1654: 1647:cut apart by 1634: 1614: 1594: 1574: 1554: 1534: 1514: 1494: 1474: 1454: 1434: 1414: 1405: 1391: 1383: 1367: 1347: 1327: 1324: 1304: 1284: 1264: 1244: 1230: 1228: 1224: 1220: 1216: 1200: 1191: 1189: 1187: 1170: 1147: 1138: 1133: 1129: 1123: 1117: 1109: 1093: 1070: 1062: 1058: 1054: 1051: 1042: 1037: 1033: 1027: 1024: 1021: 1012: 1007: 1003: 997: 988: 983: 975: 974: 973: 954: 951: 943: 927: 904: 900: 894: 890: 879: 876: 873: 869: 865: 862: 846: 843: 833: 829: 821: 813: 809: 802: 799: 789: 786: 783: 779: 774: 767: 761: 752: 747: 739: 738: 737: 711: 708: 683: 679: 672: 669: 666: 663: 655: 651: 644: 641: 635: 629: 626: 604: 600: 596: 593: 590: 585: 581: 577: 574: 567: 551: 544: 525: 521: 515: 511: 500: 497: 494: 490: 486: 483: 467: 464: 454: 450: 442: 434: 430: 423: 413: 410: 407: 403: 398: 391: 385: 376: 371: 363: 362: 361: 360: 341: 332: 327: 319: 318:outer measure 298: 295: 275: 272: 269: 266: 260: 254: 225:, in the set 209: 206: 203: 197: 194: 171: 168: 165: 159: 156: 149: 139: 137: 132: 130: 126: 122: 118: 114: 110: 109:real analysis 106: 102: 98: 96: 91: 89: 84: 80: 76: 72: 68: 66: 61: 57: 53: 49: 45: 41: 37: 33: 19: 5616: 5520:Inequalities 5460:Uniform norm 5348: 5317: 5280: 5268: 5126: 4978:Main results 4811: 4714:Set function 4642:Metric outer 4597:Decomposable 4454:Cylinder set 4367: 4281: 4275: 4269: 4245: 4238: 4203: 4199: 4186: 4176:26 September 4174:. Retrieved 4163: 4153:26 September 4151:. Retrieved 4140: 4128:. Retrieved 4118: 4099: 4090: 4065: 4061: 4051: 4037: 4032: 3991:Edison Farah 3971: 3958: 3955:submanifolds 3950: 3946: 3940: 3935: 3928:Haar measure 3925: 3913: 3893: 3880: 3866: 3861: 3855: 3851: 3847: 3843: 3836: 3833: 3729: 3725: 3721: 3719: 3603: 3599: 3592: 3588: 3584: 3582: 3481: 3474: 3471: 3386: 3382: 3377: 3373: 3370: 3363: 3353: 3349: 3345: 3341: 3337: 3329: 3325: 3321: 3319: 3310: 3306: 3294: 3286: 3282: 3274: 3272: 3263: 3259: 3255: 3254:A subset of 3253: 3235: 3232: 3128: 3122: 3115: 3058: 3054: 3050: 3046: 3038: 2901:dilation of 2900: 2870: 2863: 2859: 2855: 2851: 2847: 2843: 2839: 2835: 2831: 2827: 2823: 2819: 2813: 2805: 2797: 2793: 2789: 2782: 2752: 2748: 2744: 2740: 2736: 2732: 2728: 2724: 2720: 2716: 2711: 2704: 2698: 2691: 2685: 2675: 2494: 2487: 2484:metric space 2475: 2463: 2316: 2312: 2308: 2304: 2300: 2296: 2292: 2288: 2281: 2277: 2273: 2263: 2252: 2248: 2244: 2232: 2125: 2120: 2116: 2109: 2102: 2091: 2083: 2081: 2014: 1945:Any line in 1940:dragon curve 1827: 1823: 1819: 1815: 1803:measure zero 1798: 1794: 1784: 1780: 1770: 1766: 1762:real numbers 1406: 1236: 1221:proves that 1192: 1185: 1085: 940:satisfy the 919: 540: 145: 133: 128: 124: 120: 116: 104: 103:, or simply 100: 94: 93: 87: 86: 70: 64: 39: 29: 5718:Von Neumann 5532:Chebyshev's 4938:compact set 4905:of measures 4841:Pushforward 4834:Projections 4824:Logarithmic 4667:Probability 4657:Pre-measure 4439:Borel space 4357:of measures 4284:(1): 1–56. 4068:: 231–359. 2942:defined by 2899:, then the 2830:, then the 1936:Peano curve 1910:Vitali sets 1756:Any closed 1227:Vitali sets 564:which is a 101:hypervolume 36:mathematics 5713:C*-algebra 5537:Clarkson's 4910:in measure 4637:Maximising 4607:Equivalent 4501:Vitali set 4024:References 4011:Vitali set 3873:set theory 3305:less than 3281:less than 2808:A fortiori 2719:such that 2690:. I.e, if 2595:such that 2474:subset of 2322:Countable 2268:complement 2024:Properties 2002:hyperplane 1885:Cantor set 1791:difference 920:Some sets 142:Definition 63:Euclidean 5708:*-algebra 5693:Quasinorm 5562:Minkowski 5453:Essential 5416:∞ 5245:Lp spaces 5024:Maharam's 4994:Dominated 4807:Intensity 4802:Hausdorff 4709:Saturated 4627:Invariant 4532:Types of 4491:σ-algebra 4461:𝜆-system 4427:Borel set 4422:Baire set 4222:0002-9947 4082:121256884 4036:The term 3894:In 1970, 3809:∖ 3798:∗ 3794:λ 3781:∩ 3770:∗ 3766:λ 3748:∗ 3744:λ 3670:⁡ 3655:∈ 3648:∑ 3622:∗ 3618:λ 3551:− 3518:∏ 3502:⁡ 3407:∏ 3299:Lipschitz 3268:countable 3244:Null sets 3194:× 3191:⋯ 3188:× 3170:× 3149:λ 3091:λ 3010:λ 3001:δ 2974:∈ 2962:δ 2950:δ 2929:δ 2881:δ 2798:) = 0 (a 2656:ε 2644:∖ 2635:λ 2612:⊂ 2606:⊂ 2537:ε 2512:⊂ 2480:Borel set 2478:(or even 2342:∅ 2194:⋯ 2171:⋅ 2136:λ 2100:intervals 1985:≥ 1848:countable 1841:Borel set 1834:rectangle 1233:Intuition 1139:∗ 1134:λ 1118:λ 1086:The sets 1055:∩ 1043:∗ 1038:λ 1025:∩ 1013:∗ 1008:λ 989:∗ 984:λ 955:⊆ 885:∞ 870:⋃ 866:⊂ 847:∈ 803:⁡ 795:∞ 780:∑ 753:∗ 748:λ 712:⊆ 673:ℓ 670:× 667:⋯ 664:× 645:ℓ 630:⁡ 597:× 594:⋯ 591:× 506:∞ 491:⋃ 487:⊂ 468:∈ 424:ℓ 419:∞ 404:∑ 377:∗ 372:λ 333:∗ 328:λ 299:⊆ 273:− 255:ℓ 5735:Category 5557:Markov's 5552:Hölder's 5542:Hanner's 5359:Bessel's 5297:function 5281:Lebesgue 5041:Fubini's 5031:Egorov's 4999:Monotone 4958:variable 4936:Random: 4887:Strongly 4812:Lebesgue 4797:Harmonic 4787:Gaussian 4772:Counting 4739:Spectral 4734:Singular 4724:s-finite 4719:σ-finite 4602:Discrete 4577:Complete 4534:Measures 4508:Null set 4396:function 4098:(1988). 3986:4-volume 3980:See also 3921:complete 3839:-algebra 3480:≥ 3376:∈ 3260:null set 3250:Null set 3133:complete 3125:-algebra 2854: : 2800:null set 2486:), then 1932:positive 1826:− 1818:− 1769:− 1758:interval 1751:Examples 1340:because 1188:-algebra 1183:forms a 148:interval 146:For any 5577:Results 5276:Measure 4953:process 4948:measure 4943:element 4882:Bochner 4856:Trivial 4851:Tangent 4829:Product 4687:Regular 4665:)  4652:Perfect 4625:)  4590:)  4582:Content 4572:Complex 4513:Support 4486:-system 4375:Measure 4298:1970696 4230:1986455 4130:9 March 4044:synonym 3963:fractal 3953:, like 3587:subset 3238:-finite 3139:measure 3053:, then 2779:support 2707:and an 2303:, then 2124:, then 1898:If the 1277:covers 359:infimum 97:-volume 67:-spaces 56:subsets 52:measure 5430:spaces 5351:spaces 5320:spaces 5271:spaces 5259:Banach 5019:Jordan 5004:Vitali 4963:vector 4892:Weakly 4754:Vector 4729:Signed 4682:Random 4623:Quasi- 4612:Finite 4592:Convex 4552:Banach 4542:Atomic 4370:spaces 4355:  4296:  4257:  4228:  4220:  4106:  4080:  4039:volume 3875:. The 3606:) by: 3472:where 3129:λ 2482:, see 2472:closed 2466:is an 2324:unions 2115:× ⋯ × 1974:, for 1928:curves 1774:. The 1193:A set 105:volume 83:volume 75:length 44:French 38:, the 4861:Young 4782:Euler 4777:Dirac 4749:Tight 4677:Radon 4647:Outer 4617:Inner 4567:Brown 4562:Borel 4557:Besov 4547:Baire 4294:JSTOR 4226:JSTOR 4078:S2CID 3344:) âˆȘ ( 3258:is a 3041:is a 2235:is a 2094:is a 2017:-ball 1930:with 1856:dense 187:, or 81:, or 5615:For 5469:Maps 5125:For 5014:Hahn 4870:Maps 4792:Haar 4663:Sub- 4417:Atom 4405:Sets 4255:ISBN 4218:ISSN 4178:2015 4155:2015 4132:2023 4104:ISBN 3961:and 3941:The 3926:The 3914:The 3850:) = 3583:For 3381:. A 3371:Fix 3277:has 3045:and 2884:> 2836:by x 2762:and 2731:and 2653:< 2627:and 2540:> 2468:open 2326:and 2311:) ≀ 2291:and 2052:and 2011:The 1883:The 1846:Any 1808:Any 1797:and 1567:and 79:area 4286:doi 4251:293 4208:doi 4070:doi 3906:). 3728:of 3667:vol 3639:inf 3591:of 3585:any 3499:vol 3385:in 3383:box 3293:on 3074:det 2921:by 2869:If 2846:= { 2818:If 2788:If 2702:set 2679:set 2493:If 2470:or 2462:If 2287:If 2262:If 2239:of 2231:If 2098:of 2090:If 1858:in 1760:of 1219:ZFC 1190:. 800:vol 771:inf 627:vol 395:inf 131:). 58:of 54:to 30:In 5737:: 4292:. 4282:92 4253:. 4224:. 4216:. 4202:. 4198:. 4076:. 4064:. 4060:. 3976:. 3969:. 3923:. 3891:. 3864:. 3854:*( 3732:, 3602:*( 3348:− 3340:− 3240:. 3218:1. 2858:∈ 2850:+ 2842:+ 2794:λ( 2459:.) 2108:× 1822:)( 1783:, 1229:. 972:, 736:, 99:, 92:, 77:, 5412:L 5349:L 5318:L 5295:/ 5269:L 5237:e 5230:t 5223:v 4661:( 4621:( 4586:( 4484:π 4394:/ 4368:L 4331:e 4324:t 4317:v 4300:. 4288:: 4263:. 4232:. 4210:: 4204:4 4180:. 4157:. 4112:. 4084:. 4072:: 4066:7 3959:R 3951:n 3947:R 3936:R 3881:R 3862:A 3858:) 3856:A 3852:λ 3848:A 3846:( 3844:λ 3837:σ 3819:. 3815:) 3812:A 3806:S 3803:( 3790:+ 3787:) 3784:A 3778:S 3775:( 3762:= 3759:) 3756:S 3753:( 3730:R 3726:S 3722:A 3705:. 3701:} 3697:A 3687:C 3682:: 3679:) 3676:B 3673:( 3660:C 3652:B 3643:{ 3636:= 3633:) 3630:A 3627:( 3604:A 3600:λ 3593:R 3589:A 3568:. 3564:) 3559:i 3555:a 3546:i 3542:b 3538:( 3533:n 3528:1 3525:= 3522:i 3514:= 3511:) 3508:B 3505:( 3484:i 3482:a 3477:i 3475:b 3457:, 3453:] 3448:i 3444:b 3440:, 3435:i 3431:a 3427:[ 3422:n 3417:1 3414:= 3411:i 3403:= 3400:B 3387:R 3378:N 3374:n 3354:B 3350:A 3346:B 3342:B 3338:A 3336:( 3330:A 3326:B 3322:A 3311:n 3307:n 3295:R 3287:n 3283:n 3275:R 3264:n 3256:R 3236:σ 3215:= 3212:) 3209:] 3206:1 3203:, 3200:0 3197:[ 3185:] 3182:1 3179:, 3176:0 3173:[ 3167:] 3164:1 3161:, 3158:0 3155:[ 3152:( 3123:σ 3112:. 3100:) 3097:A 3094:( 3087:| 3083:) 3080:T 3077:( 3070:| 3059:A 3057:( 3055:T 3051:R 3047:A 3039:T 3023:. 3020:) 3017:A 3014:( 3005:n 2980:} 2977:A 2971:x 2968:: 2965:x 2959:{ 2956:= 2953:A 2909:A 2887:0 2871:A 2866:. 2864:A 2860:A 2856:a 2852:x 2848:a 2844:x 2840:A 2834:A 2828:R 2824:x 2820:A 2812:A 2804:A 2796:A 2790:A 2785:. 2783:R 2770:. 2753:F 2749:A 2747:( 2745:λ 2741:A 2737:G 2735:( 2733:λ 2729:F 2725:A 2721:G 2717:F 2712:σ 2709:F 2705:G 2699:ÎŽ 2696:G 2692:A 2686:σ 2683:F 2676:ÎŽ 2673:G 2668:. 2650:) 2647:F 2641:G 2638:( 2615:G 2609:E 2603:F 2583:F 2563:G 2543:0 2516:R 2509:E 2495:A 2488:A 2476:R 2464:A 2447:} 2444:} 2441:4 2438:, 2435:2 2432:{ 2429:, 2426:} 2423:3 2420:, 2417:1 2414:{ 2411:, 2408:} 2405:4 2402:, 2399:3 2396:{ 2393:, 2390:} 2387:2 2384:, 2381:1 2378:{ 2375:, 2372:} 2369:4 2366:, 2363:3 2360:, 2357:2 2354:, 2351:1 2348:{ 2345:, 2339:{ 2317:B 2315:( 2313:λ 2309:A 2307:( 2305:λ 2301:B 2297:A 2293:B 2289:A 2284:. 2282:A 2278:A 2276:( 2274:λ 2270:. 2264:A 2253:A 2251:( 2249:λ 2245:A 2233:A 2217:. 2213:| 2207:n 2203:I 2198:| 2190:| 2184:2 2180:I 2175:| 2167:| 2161:1 2157:I 2152:| 2148:= 2145:) 2142:A 2139:( 2126:A 2121:n 2117:I 2113:2 2110:I 2106:1 2103:I 2092:A 2084:R 2066:t 2063:+ 2060:A 2040:A 2015:n 2008:. 1988:2 1982:n 1960:n 1955:R 1920:. 1906:. 1880:. 1867:R 1836:. 1830:) 1828:c 1824:d 1820:a 1816:b 1814:( 1805:. 1799:b 1795:a 1787:) 1785:b 1781:a 1779:( 1771:a 1767:b 1735:E 1715:E 1695:E 1675:A 1655:E 1635:A 1615:A 1595:A 1575:E 1555:A 1535:E 1515:A 1495:E 1475:A 1455:A 1435:E 1415:A 1392:E 1368:E 1348:E 1328:, 1325:E 1305:E 1285:E 1265:I 1245:E 1201:E 1186:σ 1171:E 1151:) 1148:E 1145:( 1130:= 1127:) 1124:E 1121:( 1094:E 1071:. 1068:) 1063:c 1059:E 1052:A 1049:( 1034:+ 1031:) 1028:E 1022:A 1019:( 1004:= 1001:) 998:A 995:( 959:R 952:A 928:E 905:. 901:} 895:k 891:C 880:1 877:= 874:k 863:E 851:N 844:k 840:) 834:k 830:C 826:( 822:: 819:) 814:k 810:C 806:( 790:1 787:= 784:k 775:{ 768:= 765:) 762:E 759:( 721:n 717:R 709:E 689:) 684:n 680:I 676:( 661:) 656:1 652:I 648:( 642:= 639:) 636:C 633:( 605:n 601:I 586:1 582:I 578:= 575:C 552:C 526:. 522:} 516:k 512:I 501:1 498:= 495:k 484:E 472:N 465:k 461:) 455:k 451:I 447:( 443:: 440:) 435:k 431:I 427:( 414:1 411:= 408:k 399:{ 392:= 389:) 386:E 383:( 345:) 342:E 339:( 303:R 296:E 276:a 270:b 267:= 264:) 261:I 258:( 234:R 213:) 210:b 207:, 204:a 201:( 198:= 195:I 175:] 172:b 169:, 166:a 163:[ 160:= 157:I 129:A 127:( 125:λ 121:A 95:n 88:n 71:n 65:n 20:)

Index

Lebesgue measurable
measure theory
mathematics
French
Henri Lebesgue
measure
subsets
higher dimensional
Euclidean n-spaces
length
area
volume
real analysis
Lebesgue integration
Lebesgue integral
interval
outer measure
infimum
rectangular cuboid
Cartesian product
Carathéodory criterion
Carathéodory criterion
σ-algebra
Carathéodory criterion
ZFC
non-measurable sets
Vitali sets
greatest lower bound (infimum)
interval
real numbers

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