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Results tagged with intuitionism
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user 41291
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Two simple cases of quantifier elimination for Heyting algebras
This extracts a simple case from a cross-post at cs.SE.
Here is a fact about Intuitionistic Propositional Logic:
A formula $p$ is equivalent to a formula of the form $q \lor \neg q$ if and only if $\ …
- 18.4k
22
votes
6
answers
3k
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How strong is Cantor-Bernstein-Schröder?
questions validity of CBS does not require choice, but this does not exclude the possibility that, say, the propositional part of some form of constructive set theory + CBS is strictly stronger than "mere" intuitionism …
- 18.4k