• Thumbnail for Georg Cantor
    Georg Ferdinand Ludwig Philipp Cantor (/ˈkæntɔːr/ KAN-tor; German: [ˈɡeːɔʁk ˈfɛʁdinant ˈluːtvɪç ˈfiːlɪp ˈkantoːɐ̯]; 3 March [O.S. 19 February] 1845 –...
    85 KB (10,164 words) - 12:57, 28 May 2025
  • Thumbnail for Cantor's diagonal argument
    infinite sets is treated by the theory of cardinal numbers, which Cantor began. Georg Cantor published this proof in 1891,: 20–  but it was not his first proof...
    27 KB (2,751 words) - 02:16, 12 April 2025
  • mathematics, a Cantor space, named for Georg Cantor, is a topological abstraction of the classical Cantor set: a topological space is a Cantor space if it...
    5 KB (664 words) - 00:25, 19 March 2025
  • Thumbnail for Cantor's first set theory article
    Cantor's first set theory article contains Georg Cantor's first theorems of transfinite set theory, which studies infinite sets and their properties....
    102 KB (7,563 words) - 02:18, 14 May 2025
  • Thumbnail for Cantor set
    Smith and mentioned by German mathematician Georg Cantor in 1883. Through consideration of this set, Cantor and others helped lay the foundations of modern...
    42 KB (6,396 words) - 06:04, 5 June 2025
  • Schröder. It is also known as the Cantor–Bernstein theorem or Cantor–Schröder–Bernstein theorem, after Georg Cantor, who first published it (albeit without...
    20 KB (2,374 words) - 11:57, 23 March 2025
  • is an extension of the idea of infinity proposed by mathematician Georg Cantor. Cantor linked the absolute infinite with God,: 175 : 556  and believed that...
    10 KB (1,306 words) - 18:06, 6 May 2025
  • positive measure. The Smith–Volterra–Cantor set is named after the mathematicians Henry Smith, Vito Volterra and Georg Cantor. In an 1875 paper, Smith discussed...
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  • denoted by S ′ . {\displaystyle S'.} The concept was first introduced by Georg Cantor in 1872 and he developed set theory in large part to study derived sets...
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  • Thumbnail for Cardinality
    and is therefore a measure of size of the set. Since the discovery by Georg Cantor, in the late 19th century, of different sizes of infinite sets, the term...
    71 KB (9,769 words) - 16:08, 7 June 2025
  • was introduced into mathematics near the end of the 19th century by Georg Cantor with his theory of infinite sets, and was later formalized into Zermelo–Fraenkel...
    19 KB (2,607 words) - 14:32, 23 May 2025
  • Thumbnail for Cantor function
    the Cantor staircase function, and the Cantor–Lebesgue function. Georg Cantor (1884) introduced the Cantor function and mentioned that Scheeffer pointed...
    21 KB (3,512 words) - 21:20, 30 May 2025
  • Thumbnail for Set (mathematics)
    points may be located. The mathematical study of infinite sets began with Georg Cantor (1845–1918). This provided some counterintuitive facts and paradoxes...
    49 KB (7,041 words) - 08:59, 8 June 2025
  • {\displaystyle \beth _{1}=\aleph _{1}} . The continuum hypothesis was advanced by Georg Cantor in 1878, and establishing its truth or falsehood is the first of Hilbert's...
    32 KB (4,061 words) - 17:25, 15 April 2025
  • a naive set theory. It was created at the end of the 19th century by Georg Cantor as part of his study of infinite sets and developed as a formal but inconsistent...
    35 KB (4,774 words) - 22:32, 25 May 2025
  • ordering of infinite sets. The term transfinite was coined in 1895 by Georg Cantor, who wished to avoid some of the implications of the word infinite in...
    10 KB (1,232 words) - 08:58, 23 October 2024
  • finite is said to be countably infinite. The concept is attributed to Georg Cantor, who proved the existence of uncountable sets, that is, sets that are...
    28 KB (4,381 words) - 01:01, 29 March 2025
  • Thumbnail for Aleph number
    (or size) of infinite sets. They were introduced by the mathematician Georg Cantor and are named after the symbol he used to denote them, the Hebrew letter...
    17 KB (2,453 words) - 20:41, 24 May 2025
  • Thumbnail for Ordinal number
    none of these operations are commutative. Ordinals were introduced by Georg Cantor in 1883 to accommodate infinite sequences and classify derived sets,...
    48 KB (6,703 words) - 04:03, 30 May 2025
  • In mathematics, a Cantor cube is a topological group of the form {0, 1}A for some index set A. Its algebraic and topological structures are the group direct...
    2 KB (246 words) - 08:02, 14 August 2024
  • Thumbnail for Cardinal number
    infinite sets, the behavior is more complex. A fundamental theorem due to Georg Cantor shows that it is possible for two infinite sets to have different cardinalities...
    26 KB (3,834 words) - 23:33, 1 June 2025
  • in 1890 in Bremen with the set theorist Georg Cantor as first president. Founding members included Georg Cantor, Felix Klein, Walther von Dyck, David Hilbert...
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  • Thumbnail for Infinity
    and, if so, how this could be done. At the end of the 19th century, Georg Cantor enlarged the mathematical study of infinity by studying infinite sets...
    54 KB (6,115 words) - 05:16, 7 June 2025
  • It was used by Felix Hausdorff and named by him after Georg Cantor and Felix Bernstein. Cantor constructed a family of countable order types with the...
    1 KB (99 words) - 17:41, 10 August 2023
  • Thumbnail for Cantor's paradise
    Cantor's paradise is an expression used by David Hilbert (1926, page 170) in describing set theory and infinite cardinal numbers developed by Georg Cantor...
    2 KB (178 words) - 13:41, 19 September 2024
  • Thumbnail for Cantor's theorem
    details. The theorem is named for Georg Cantor, who first stated and proved it at the end of the 19th century. Cantor's theorem had immediate and important...
    22 KB (3,735 words) - 00:55, 8 December 2024
  • other academics at the University of Göttingen. At the end of the 1890s, Georg Cantor – considered the founder of modern set theory – had already realized...
    32 KB (4,621 words) - 14:05, 26 May 2025
  • Thumbnail for Kurt Gödel
    mathematics), building on earlier work by Frege, Richard Dedekind, and Georg Cantor. Gödel's discoveries in the foundations of mathematics led to the proof...
    54 KB (5,833 words) - 23:46, 1 June 2025
  • Thumbnail for Abraham Fraenkel
    Teubner. 1930. "Georg Cantor". In Jahresbericht der Deutschen Mathematiker-Vereinigung 39, 189–266. Also appeared separately as Georg Cantor Leipzig: B. G...
    14 KB (1,442 words) - 04:41, 13 May 2025
  • mathematical logic, the theory of infinite sets was first developed by Georg Cantor. Although this work has become a thoroughly standard fixture of classical...
    23 KB (2,978 words) - 04:01, 28 January 2025