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Constructive set theory information


Axiomatic constructive set theory is an approach to mathematical constructivism following the program of axiomatic set theory. The same first-order language with "" and "" of classical set theory is usually used, so this is not to be confused with a constructive types approach. On the other hand, some constructive theories are indeed motivated by their interpretability in type theories.

In addition to rejecting the principle of excluded middle (), constructive set theories often require some logical quantifiers in their axioms to be set bounded, motivated by results tied to impredicativity.

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Constructive set theory

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Axiomatic constructive set theory is an approach to mathematical constructivism following the program of axiomatic set theory. The same first-order language...

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Set theory

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Set theory is the branch of mathematical logic that studies sets, which can be informally described as collections of objects. Although objects of any...

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Constructive proof

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proofs were essentially constructive. The first non-constructive constructions appeared with Georg Cantor’s theory of infinite sets, and the formal definition...

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Disjunction and existence properties

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of constructive theories such as Heyting arithmetic and constructive set theories (Rathjen 2005). The disjunction property is satisfied by a theory if...

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Constructive quantum field theory

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In mathematical physics, constructive quantum field theory is the field devoted to showing that quantum field theory can be defined in terms of precise...

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Intuitionistic type theory

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Intuitionistic type theory (also known as constructive type theory, or Martin-Löf type theory, the latter abbreviated as MLTT) is a type theory and an alternative...

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Glossary of set theory

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Look up Appendix:Glossary of set theory in Wiktionary, the free dictionary. This is a glossary of set theory. Contents:  Greek !$@ A B C D E F G H I J...

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List of alternative set theories

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theory Naive set theory S (set theory) Kripke–Platek set theory Scott–Potter set theory Constructive set theory Zermelo set theory General set theory...

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Axiom of power set

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axiom of power set appears in most axiomatizations of set theory. It is generally considered uncontroversial, although constructive set theory prefers a weaker...

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Axiom of choice

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AC or AoC, is an axiom of set theory equivalent to the statement that a Cartesian product of a collection of non-empty sets is non-empty. Informally put...

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Constructive analysis

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{\mathbb {N} }^{\mathbb {N} }} , constructive second-order arithmetic, or strong enough topos-, type- or constructive set theories such as C Z F {\displaystyle...

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Naive set theory

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Naive set theory is any of several theories of sets used in the discussion of the foundations of mathematics. Unlike axiomatic set theories, which are...

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Peter Aczel

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Manchester. He is known for his work in non-well-founded set theory, constructive set theory, and Frege structures. Aczel completed his Bachelor of Arts...

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Law of excluded middle

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Consequentia mirabilis – Pattern of reasoning in propositional logic Constructive set theory Diaconescu's theorem Dichotomy – Splitting of a whole into exactly...

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Type theory

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type theories serve as alternatives to set theory as a foundation of mathematics. Two influential type theories that have been proposed as foundations...

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Hereditarily finite set

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_{0}}} has a constructive axiomatization involving these axioms and e.g. Set induction and Replacement. Axiomatically characterizing the theory of hereditarily...

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Intuitionistic logic

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calculus. BHK interpretation Computability logic Constructive analysis Constructive proof Constructive set theory Curry–Howard correspondence Game semantics...

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Proof theory

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techniques from recursion theory as well as proof theory. Functional interpretations are interpretations of non-constructive theories in functional ones. Functional...

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