• ordered set X is said to satisfy the countable chain condition, or to be ccc, if every strong antichain in X is countable. There are really two conditions:...
    3 KB (456 words) - 22:46, 20 March 2025
  • mutually disjoint non-empty open intervals in R is countable (this is the countable chain condition for the order topology of R), is R necessarily order-isomorphic...
    6 KB (781 words) - 23:04, 4 December 2024
  • nonempty unbounded complete dense total order satisfying the countable chain condition is isomorphic to the realsPages displaying wikidata descriptions...
    22 KB (3,150 words) - 15:51, 11 May 2025
  • {P} } satisfies the countable chain condition (c.c.c.) if and only if every antichain in P {\displaystyle \mathbb {P} } is countable. (The name, which is...
    52 KB (9,294 words) - 07:15, 16 December 2024
  • line also satisfies the countable chain condition: every collection of mutually disjoint, nonempty open intervals in R is countable. In order theory, the...
    20 KB (2,549 words) - 17:44, 4 April 2025
  • size of a countable set, typically the cardinality of the set of natural numbers. countable chain condition The countable chain condition (ccc) for a...
    91 KB (11,628 words) - 12:22, 21 March 2025
  • Boolean algebra that is complete, atomless, countably distributive, and satisfies the countable chain condition. They are named after Mikhail Yakovlevich...
    1 KB (89 words) - 10:47, 28 November 2024
  • significant strengthening of Martin's axiom, where forcings with the countable chain condition (ccc) are replaced by proper forcings. A forcing or partially...
    6 KB (895 words) - 11:23, 8 April 2024
  • Thumbnail for Axiom of countable choice
    {\displaystyle (\aleph _{0})} , a countable form of Martin's axiom: in a preorder with the countable chain condition, every countable family of dense subsets has...
    10 KB (1,259 words) - 14:17, 15 March 2025
  • Thumbnail for Markov chain
    affairs now." A countably infinite sequence, in which the chain moves state at discrete time steps, gives a discrete-time Markov chain (DTMC). A continuous-time...
    96 KB (12,900 words) - 21:01, 27 April 2025
  • Countable chain condition A space X satisfies the countable chain condition if every family of non-empty, pairswise disjoint open sets is countable....
    55 KB (7,693 words) - 07:57, 22 February 2025
  • Thumbnail for Mikhail Suslin
    Boolean algebra that is complete, atomless, countably distributive, and satisfies the countable chain condition. 2.  A Suslin cardinal is a cardinal λ such...
    6 KB (674 words) - 06:01, 5 November 2024
  • category, a concept in category theory CCC, Roman numeral for 300 Countable chain condition, in order theory CCCn, cube-connected cycles of order n in graph...
    7 KB (775 words) - 20:28, 23 February 2025
  • of c.c.c. forcings (see countable chain condition) are c.c.c. and thus preserve ω 1 {\displaystyle \omega _{1}} . Countable support iterations of proper...
    3 KB (424 words) - 02:26, 20 March 2023
  • following statement: MA(κ) For any partial order P satisfying the countable chain condition (hereafter ccc) and any set D = {Di}i∈I of dense subsets of P...
    6 KB (806 words) - 17:15, 23 September 2024
  • Polish group G, the σ-algebra of Haar null sets satisfies the countable chain condition if and only if G is locally compact. For any locally compact abelian...
    8 KB (1,005 words) - 16:51, 25 May 2024
  • all sets M is a countable transitive model of set theory G is a generic subset of P over M. P satisfies the countable chain condition if every antichain...
    18 KB (2,652 words) - 14:44, 20 April 2025
  • to the way an amoeba eats food. The amoeba order satisfies the countable chain condition. Kunen, Kenneth (2011), Set theory, Studies in Logic, vol. 34...
    1 KB (154 words) - 09:38, 17 October 2024
  • Knaster's condition downwards. The property is named after Polish mathematician Bronisław Knaster. Knaster's condition implies the countable chain condition (ccc)...
    1 KB (157 words) - 02:41, 9 February 2023
  • of cardinality strictly smaller than 2ℵ0 and the poset has the countable chain condition, we can instead use Martin's axiom. However, Martin's axiom is...
    4 KB (424 words) - 11:17, 19 November 2024
  • Thumbnail for Discrete-time Markov chain
    X_{n}=x_{n})>0.} The possible values of Xi form a countable set S called the state space of the chain. Markov chains are often described by a sequence of directed...
    25 KB (4,252 words) - 18:52, 20 February 2025
  • statement, denoted by MA(k): For any partial order P satisfying the countable chain condition (hereafter ccc) and any family D of dense sets in P such that...
    11 KB (1,588 words) - 21:59, 20 January 2025
  • In statistics, Markov chain Monte Carlo (MCMC) is a class of algorithms used to draw samples from a probability distribution. Given a probability distribution...
    62 KB (8,537 words) - 04:54, 19 May 2025
  • Thumbnail for Probability space
    requirements: First, the probability of a countable union of mutually exclusive events must be equal to the countable sum of the probabilities of each of these...
    24 KB (3,575 words) - 00:56, 12 February 2025
  • lattice Ascending chain condition Infinite descending chain Countable chain condition, often abbreviated as ccc Knaster's condition, sometimes denoted...
    5 KB (396 words) - 23:32, 16 April 2025
  • While loop Loop invariant Transfinite induction Descending chain condition Large countable ordinal Correctness (computer science) Weakest-preconditions...
    10 KB (1,537 words) - 08:05, 24 August 2021
  • measure spaces by observing that the countable union of countable unions is again a countable union, and that the countable unions of null sets are null. A...
    9 KB (1,559 words) - 04:39, 2 February 2025
  • Thumbnail for Axiom of choice
    I}X_{i}} is not empty. The union of any countable family of countable sets is countable (this requires countable choice but not the full axiom of choice)...
    59 KB (7,917 words) - 15:47, 15 May 2025
  • finite or countable (though it must be bounded and totally ordered). In that case, μ has to be a finite measure, and the lattice condition has to be defined...
    16 KB (2,501 words) - 21:12, 14 April 2025
  • discrete-time Markov chains. Let ( Ω , A , Pr ) {\displaystyle (\Omega ,{\cal {A}},\Pr )} be a probability space, let S {\displaystyle S} be a countable nonempty...
    23 KB (4,240 words) - 18:35, 6 May 2025