• In mathematics, specifically set theory, a cumulative hierarchy is a family of sets W α {\displaystyle W_{\alpha }} indexed by ordinals α {\displaystyle...
    2 KB (311 words) - 04:00, 28 November 2024
  • divided into the transfinite hierarchy Vα , called the cumulative hierarchy, based on their rank. The cumulative hierarchy is a collection of sets Vα indexed...
    21 KB (2,811 words) - 12:49, 27 December 2024
  • Tarski. One can describe the cumulative hierarchy into which Zermelo developed his models as the universe of a cumulative TT in which transfinite types...
    32 KB (4,621 words) - 14:05, 26 May 2025
  • collection of all sets in the von Neumann universe (also known as the cumulative hierarchy). The metamathematics of Zermelo–Fraenkel set theory has been extensively...
    46 KB (6,252 words) - 13:43, 7 June 2025
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    organized into a cumulative hierarchy, based on how deeply their members, members of members, etc. are nested. Each set in this hierarchy is assigned (by...
    54 KB (6,575 words) - 19:15, 10 June 2025
  • Universe: In mathematics, the Von Neumann universe (denoted by V) is the cumulative hierarchy of all sets in Zermelo–Fraenkel set theory, structured in layers:...
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  • that an axiomatic system based on the inherent properties of the cumulative hierarchy turns out to be equivalent to ZF, including regularity. The concept...
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  • relations on a proper class (Jech 2003:65) by referring to levels of the cumulative hierarchy. The method relies on the axiom of regularity but not on the axiom...
    5 KB (738 words) - 10:49, 21 November 2021
  • {\displaystyle V_{\alpha }} is the rank- α {\displaystyle \alpha } set in the cumulative hierarchy—forms a model of second-order Zermelo set theory within ZFC whenever...
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    union Axiom schema of specification Boltzmann brain Choice function Cumulative hierarchy Pairwise comparison Von Neumann universe 14990 Zermelo, asteroid...
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  • critical point of something CTM Countable transitive model cumulative hierarchy A cumulative hierarchy is a sequence of sets indexed by ordinals that satisfies...
    91 KB (11,628 words) - 12:22, 21 March 2025
  • Foundations (NF). Of these, ZF, NBG, and MK are similar in describing a cumulative hierarchy of sets. New Foundations takes a different approach; it allows objects...
    69 KB (8,370 words) - 19:12, 10 June 2025
  • According to Gagne, the cumulative learning theory is better than the maturational model because of the focus on the hierarchies of capabilities. In this...
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  • and MK have models describable in terms of the cumulative hierarchy Vα  and the constructible hierarchy Lα . Let V include an inaccessible cardinal κ,...
    97 KB (15,666 words) - 02:01, 18 March 2025
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    can naturally be considered as proper classes by cutting off the cumulative hierarchy of the universe one stage above the cardinal, and Alling accordingly...
    84 KB (11,658 words) - 04:06, 8 June 2025
  • i } {\displaystyle i=\{i\}} for each i in I. In ZFC, define the cumulative hierarchy as the ordinal-indexed sequence of sets satisfying the following...
    59 KB (10,960 words) - 22:58, 2 May 2025
  • ), then there is a level V α {\displaystyle V_{\alpha }} of the cumulative hierarchy such that V α ⊨ ϕ ( x 1 , … , x n ) {\displaystyle V_{\alpha }\vDash...
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    foundations of set theory after Skolem's paper led to his discovery of the cumulative hierarchy and formalization of infinitary logic. The surprise with which set...
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  • model) which moves a rank V α {\displaystyle V_{\alpha }} of the cumulative hierarchy of sets. We may suppose without loss of generality that j ( α ) <...
    50 KB (8,050 words) - 11:41, 9 June 2025
  • ISBN 978-1-139-17313-1, OCLC 817922080 Viale, Matteo (November 2003), "The cumulative hierarchy and the constructible universe of ZFA", Mathematical Logic Quarterly...
    12 KB (1,222 words) - 14:29, 14 October 2024
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    of limitation of size. These models are built in ZFC by using the cumulative hierarchy Vα, which is defined by transfinite recursion: V0 = ∅. Vα+1 = Vα ∪ P(Vα)...
    48 KB (6,691 words) - 09:01, 28 May 2025
  • In logic, an important one is Tarski's hierarchy. In set theory, an important one is the cumulative hierarchy. higher-order logic A form of logic that...
    271 KB (30,237 words) - 18:29, 25 April 2025
  • arbitrary infinite set. In particular, Vω + ω, a particular level of the cumulative hierarchy with countable rank, is a model of Zermelo set theory. The axiom...
    14 KB (2,061 words) - 03:59, 24 March 2025
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    related to the cumulative distribution function of a normal distribution; another is the arctan function, which is related to the cumulative distribution...
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  • Thumbnail for Dmitry Mirimanoff
    introduced, though not as explicitly as John von Neumann later, the cumulative hierarchy of sets and the notion of von Neumann ordinals; although he introduced...
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  • {\displaystyle \kappa } satisfying the above version based on the cumulative hierarchy were called strongly Q-indescribable. This property has also been...
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  • Boolean-valued set, they are defined inductively in a hierarchy similar to the cumulative hierarchy. For each ordinal α of V, the set VBα is defined as...
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  • "Learning and cognitive development: Representative samples, cumulative-hierarchical learning, and experimental-longitudinal learning. Monographs of...
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  • well-founded or non-well-founded, ...), the various constructions of the cumulative hierarchy of sets, forcing models, sheaf models and realisability models. Instead...
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    probabilistic interpretation considers the activation nonlinearity as a cumulative distribution function. The probabilistic interpretation led to the introduction...
    180 KB (17,775 words) - 21:04, 10 June 2025