In the mathematical discipline of set theory, forcing is a technique for proving consistency and independence results. Intuitively, forcing can be thought...
52 KB (9,292 words) - 14:57, 4 June 2024
In mathematics, forcing is a method of constructing new models M[G] of set theory by adding a generic subset G of a poset P to a model M. The poset P used...
16 KB (2,454 words) - 17:34, 9 February 2024
In the mathematical field of set theory, the proper forcing axiom (PFA) is a significant strengthening of Martin's axiom, where forcings with the countable...
6 KB (895 words) - 11:23, 8 April 2024
Look up forcing in Wiktionary, the free dictionary. Forcing may refer to: Forcing (mathematics), a technique for obtaining independence proofs for set...
1 KB (203 words) - 06:47, 19 August 2024
In mathematics, iterated forcing is a method for constructing models of set theory by repeating Cohen's forcing method a transfinite number of times. Iterated...
3 KB (424 words) - 02:26, 20 March 2023
Continuum hypothesis (category Forcing (mathematics))
In mathematics, specifically set theory, the continuum hypothesis (abbreviated CH) is a hypothesis about the possible sizes of infinite sets. It states:...
31 KB (3,922 words) - 21:39, 11 September 2024
Countable chain condition (category Forcing (mathematics))
the statement of Martin's axiom. In the theory of forcing, ccc partial orders are used because forcing with any generic set over such an order preserves...
3 KB (458 words) - 21:37, 20 September 2024
Unsolved problem in mathematics: For any sunflower size, does every set of uniformly sized sets which is of cardinality greater than some exponential...
18 KB (2,888 words) - 17:05, 21 March 2024
Complete Boolean algebra (category Forcing (mathematics))
In mathematics, a complete Boolean algebra is a Boolean algebra in which every subset has a supremum (least upper bound). Complete Boolean algebras are...
10 KB (1,347 words) - 15:36, 22 September 2024
Set theory (redirect from Set theory (mathematics))
of forcing while searching for a model of ZFC in which the continuum hypothesis fails, or a model of ZF in which the axiom of choice fails. Forcing adjoins...
41 KB (5,029 words) - 10:23, 21 September 2024
Criticism of non-standard analysis Standard part function Set theory Forcing (mathematics) Boolean-valued model Kripke semantics General frame Predicate logic...
14 KB (1,012 words) - 19:53, 12 November 2023
The history of mathematics deals with the origin of discoveries in mathematics and the mathematical methods and notation of the past. Before the modern...
139 KB (16,142 words) - 05:50, 24 September 2024
In the mathematical discipline of set theory, ramified forcing is the original form of forcing introduced by Cohen (1963) to prove the independence of...
2 KB (244 words) - 06:26, 4 March 2024
In mathematics, two sequences of numbers, often experimental data, are proportional or directly proportional if their corresponding elements have a constant...
8 KB (1,013 words) - 12:00, 6 September 2024
of forcing is employed in set theory, model theory, and recursion theory, as well as in the study of intuitionistic mathematics. The mathematical field...
68 KB (8,331 words) - 20:24, 9 September 2024
Amoeba order (redirect from Amoeba forcing)
In mathematics, the amoeba order is the partial order of open subsets of 2ω of measure less than 1/2, ordered by reverse inclusion. Amoeba forcing is...
1 KB (154 words) - 16:12, 21 October 2014
Cantor algebra (category Forcing (mathematics))
In mathematics, a Cantor algebra, named after Georg Cantor, is one of two closely related Boolean algebras, one countable and one complete. The countable...
2 KB (204 words) - 18:02, 23 June 2020
others found deep new results in mathematical logic and axiomatic set theory using offshoots of Boolean algebra, namely forcing and Boolean-valued models. A...
49 KB (3,356 words) - 02:25, 17 September 2024
Rasiowa–Sikorski lemma (redirect from Rasiowa Sikorski Lemma(mathematics))
one of the most fundamental facts used in the technique of forcing. In the area of forcing, a subset E of a poset (P, ≤) is called dense in P if for any...
4 KB (416 words) - 07:58, 20 May 2024
Nice name (category Forcing (mathematics))
name is used in forcing to impose an upper bound on the number of subsets in the generic model. It is used in the context of forcing to prove independence...
2 KB (241 words) - 06:23, 4 March 2024
Boolean-valued model (category Forcing (mathematics))
syntactic forcing A forcing relation p ⊩ ϕ {\displaystyle p\Vdash \phi } is defined between elements p of the poset and formulas φ of the forcing language...
16 KB (2,447 words) - 22:03, 12 February 2024
In mathematics, a set is a collection of different things; these things are called elements or members of the set and are typically mathematical objects...
41 KB (4,806 words) - 20:44, 29 September 2024
In mathematics, a matrix (pl.: matrices) is a rectangular array or table of numbers, symbols, or expressions, with elements or entries arranged in rows...
107 KB (13,385 words) - 05:17, 2 October 2024
Collapsing algebra (category Forcing (mathematics))
In mathematics, a collapsing algebra is a type of Boolean algebra sometimes used in forcing to reduce ("collapse") the size of cardinals. The posets used...
2 KB (254 words) - 02:15, 13 May 2024
List of set theory topics (category Mathematics-related lists)
Axiom of projective determinacy Axiom of real determinacy Empty set Forcing (mathematics) Fuzzy set Hereditary set Internal set theory Intersection (set theory)...
9 KB (448 words) - 16:05, 3 August 2022
Outline of logic (category Outlines of mathematics and logic)
Effective enumeration Element (mathematics) Empty function Empty set Enumeration Extensionality Finite set Forcing (mathematics) Function (set theory) Function...
24 KB (2,084 words) - 23:23, 8 July 2024
Easton's theorem (category Forcing (mathematics))
in the domain of G. The proof of Easton's theorem uses forcing with a proper class of forcing conditions over a model satisfying the generalized continuum...
3 KB (423 words) - 13:40, 14 July 2024
Random algebra (redirect from Random forcing)
unit interval modulo the ideal of measure zero sets. It is used in random forcing to add random reals to a model of set theory. The random algebra was studied...
2 KB (201 words) - 06:26, 4 March 2024
Philosophy of mathematics is the branch of philosophy that deals with the nature of mathematics and its relationship with other human activities. Major...
97 KB (11,935 words) - 09:23, 28 September 2024
In mathematics and physics, vector is a term that refers to quantities that cannot be expressed by a single number (a scalar), or to elements of some...
10 KB (2,690 words) - 06:16, 19 September 2024