• Thumbnail for Axiom of power set
    the axiom of power set is one of the Zermelo–Fraenkel axioms of axiomatic set theory. It guarantees for every set x {\displaystyle x} the existence of a...
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  • Thumbnail for Power set
    example, in the ZFC axioms), the existence of the power set of any set is postulated by the axiom of power set. The powerset of S is variously denoted...
    21 KB (2,473 words) - 19:41, 12 March 2025
  • theory of sets free of paradoxes such as Russell's paradox. Today, Zermelo–Fraenkel set theory, with the historically controversial axiom of choice (AC)...
    46 KB (6,252 words) - 03:38, 3 April 2025
  • axiomatic set theory and the branches of mathematics and philosophy that use it, the axiom of infinity is one of the axioms of Zermelo–Fraenkel set theory...
    11 KB (1,820 words) - 03:49, 3 February 2025
  • axiomatic set theory and the branches of logic, mathematics, and computer science that use it, the axiom of pairing is one of the axioms of Zermelo–Fraenkel...
    7 KB (1,147 words) - 19:29, 21 December 2024
  • Thumbnail for Set theory
    the whole of mathematics, particularly in the form of Zermelo–Fraenkel set theory with the axiom of choice. Besides its foundational role, set theory also...
    52 KB (6,333 words) - 20:22, 1 April 2025
  • In set theory, the axiom schema of replacement is a schema of axioms in Zermelo–Fraenkel set theory (ZF) that asserts that the image of any set under any...
    21 KB (3,513 words) - 20:47, 17 February 2025
  • The axiom of constructibility is a possible axiom for set theory in mathematics that asserts that every set is constructible. The axiom is usually written...
    8 KB (1,064 words) - 09:57, 4 February 2025
  • union Axiom of infinity Axiom schema of replacement Axiom of power set Axiom of regularity Axiom schema of specification See also Zermelo set theory...
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  • Thumbnail for Axiom of limitation of size
    In set theory, the axiom of limitation of size was proposed by John von Neumann in his 1925 axiom system for sets and classes. It formalizes the limitation...
    47 KB (6,684 words) - 09:01, 29 November 2024
  • subclass of a set b {\displaystyle b} , so the axiom of separation implies ∪ a {\displaystyle \cup a} is a set. Likewise, the axiom of power set states...
    97 KB (15,661 words) - 02:01, 18 March 2025
  • the axiom of regularity (also known as the axiom of foundation) is an axiom of Zermelo–Fraenkel set theory that states that every non-empty set A contains...
    24 KB (2,938 words) - 00:23, 30 January 2025
  • of axiomatic set theory, the axiom schema of specification, also known as the axiom schema of separation (Aussonderungsaxiom), subset axiom, axiom of...
    15 KB (2,207 words) - 05:19, 24 March 2025
  • set theory, the axiom of union is one of the axioms of Zermelo–Fraenkel set theory. This axiom was introduced by Ernst Zermelo. Informally, the axiom...
    4 KB (688 words) - 08:00, 5 March 2025
  • The axiom of extensionality, also called the axiom of extent, is an axiom used in many forms of axiomatic set theory, such as Zermelo–Fraenkel set theory...
    14 KB (1,870 words) - 22:01, 24 March 2025
  • Thumbnail for Axiom of choice
    the axiom of choice, abbreviated AC or AoC, is an axiom of set theory equivalent to the statement that a Cartesian product of a collection of non-empty...
    59 KB (7,908 words) - 23:23, 3 April 2025
  • the unary predicate. AXIOM I. Axiom of extensionality (Axiom der Bestimmtheit) "If every element of a set M is also an element of N and vice versa ......
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  • omitting the axioms Union, Power Set, Elementary Sets (essentially Pairing) and Infinity and then taking a theorem of Z, Adjunction, as an axiom. The natural...
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  • Thumbnail for Axiom of countable choice
    The axiom of countable choice or axiom of denumerable choice, denoted ACω, is an axiom of set theory that states that every countable collection of non-empty...
    10 KB (1,259 words) - 14:17, 15 March 2025
  • inner model of ZF set theory (that is, of Zermelo–Fraenkel set theory with the axiom of choice excluded), and also that the axiom of choice and the generalized...
    32 KB (6,095 words) - 22:32, 26 January 2025
  • an axiom is a premise or starting point for reasoning. In mathematics, an axiom may be a "logical axiom" or a "non-logical axiom". Logical axioms are...
    34 KB (4,918 words) - 01:46, 3 April 2025
  • or the axiom of regularity and axiom of pairing. In Zermelo–Fraenkel set theory, the axiom of regularity and axiom of pairing prevent any set from containing...
    10 KB (1,327 words) - 06:43, 21 May 2024
  • Thumbnail for Cartesian product
    the power set operator. Therefore, the existence of the Cartesian product of any two sets in ZFC follows from the axioms of pairing, union, power set, and...
    27 KB (3,941 words) - 00:51, 22 March 2025
  • list of articles related to set theory. Algebra of sets Axiom of choice Axiom of countable choice Axiom of dependent choice Zorn's lemma Axiom of power set...
    5 KB (448 words) - 01:47, 13 February 2025
  • Thumbnail for Empty set
    the empty set exists by including an axiom of empty set, while in other theories, its existence can be deduced. Many possible properties of sets are vacuously...
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  • Thumbnail for Probability axioms
    probability axioms are the foundations of probability theory introduced by Russian mathematician Andrey Kolmogorov in 1933. These axioms remain central...
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  • theorem does not rely on the axiom of choice. Cantor's theorem implies that no set is equinumerous to its power set (the set of all its subsets). This holds...
    14 KB (1,822 words) - 04:54, 1 December 2024
  • is a set if and only if it has smaller cardinality than the class of all sets Axiom of pairing Unordered pairs of sets are sets Axiom of power set The...
    91 KB (11,628 words) - 12:22, 21 March 2025
  • The nine Peano axioms contain three types of statements. The first axiom asserts the existence of at least one member of the set of natural numbers....
    49 KB (6,472 words) - 03:13, 3 April 2025
  • Thumbnail for Infinite set
    the axiom of infinity) is infinite. It is the only set that is directly required by the axioms to be infinite. The existence of any other infinite set can...
    8 KB (918 words) - 04:03, 25 February 2025