Question

Can we prove using intuitionist logic that $\neg \exists r: \forall x: [P(x,r) \iff \neg P(x,x)]$

score 64 · Answer 1 · 2019-12-17 04:05:20

64

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Can we prove using intuitionist logic that $\neg \exists r: \forall x: [P(x,r) \iff \neg P(x,x)]$

Published on 17 Dec 2019 - 4:05

score 142 · Answer 2 · 2019-12-27 14:21:30

142

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In Intuitionistic Kripke semantics, is proving a formula not forced at one node the same as proving it not derivable/invalid?

Published on 27 Dec 2019 - 14:21

score 299 · Answer 3 · 2026-02-23 15:09:43

299

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A Question About the Order of Learning from the Book "Lectures on the Curry-Howard Isomorphism" (1998)

Published on 23 Feb 2026 - 15:09

score 131 · Answer 4 · 2019-12-27 20:43:16

131

Views

What does intuitionism/constructivism say about this proof?

Published on 27 Dec 2019 - 20:43

score 405 · Answer 5 · 2019-12-31 23:06:02

405

Views

Relation between Heyting algebras and Intuitionistic logic

Published on 31 Dec 2019 - 23:06

score 89 · Answer 6 · 2020-01-03 10:58:33

89

Views

Satisfaction relation in Intuitionistic Logic

Published on 03 Jan 2020 - 10:58

score 74 · Answer 7 · 2020-01-09 14:06:49

74

Views

For which logic output of funcntion $\tau$ will be K logic?

Published on 09 Jan 2020 - 14:06

score 110 · Answer 8 · 2026-02-23 05:12:24

110

Views

Proving $\Gamma \vdash \phi$ Implies $\Gamma \vDash \phi$ (for Institutionistic propositional logic and Heying algebras)

Published on 23 Feb 2026 - 5:12

score 109 · Answer 9 · 2020-01-14 15:43:41

109

Views

Resource suggestion for practicing modal logic and intuitionistic logic

Published on 14 Jan 2020 - 15:43

score 118 · Answer 10 · 2020-01-15 21:42:05

118

Views

Provide a Kripke model to prove that $\neg(\neg P\lor \neg Q\lor R)\to (P\land Q \land R)$ is false in intuitionistic logic

Published on 15 Jan 2020 - 21:42

score 76 · Answer 11 · 2020-01-24 16:48:16

76

Views

intuitionistic probability theory

Published on 24 Jan 2020 - 16:48

score 49 · Answer 12 · 2020-01-30 19:22:06

49

Views

Watered down axiom of choice

Published on 30 Jan 2020 - 19:22

score 210 · Answer 13 · 2020-02-18 15:12:46

210

Views

Possible worlds with different formal semantics

Published on 18 Feb 2020 - 15:12

score 566 · Answer 14 · 2020-02-22 20:33:07

566

Views

About Gödel-Gentzen negative translation

Published on 22 Feb 2020 - 20:33

score 105 · Answer 15 · 2026-02-23 07:14:50

105

Views

Are constant functions continuous in constructive mathematics?

Published on 23 Feb 2026 - 7:14

List Question

Can we prove using intuitionist logic that $\neg \exists r: \forall x: [P(x,r) \iff \neg P(x,x)]$

In Intuitionistic Kripke semantics, is proving a formula not forced at one node the same as proving it not derivable/invalid?

A Question About the Order of Learning from the Book "Lectures on the Curry-Howard Isomorphism" (1998)

What does intuitionism/constructivism say about this proof?

Relation between Heyting algebras and Intuitionistic logic

Satisfaction relation in Intuitionistic Logic

For which logic output of funcntion $\tau$ will be K logic?

Proving $\Gamma \vdash \phi$ Implies $\Gamma \vDash \phi$ (for Institutionistic propositional logic and Heying algebras)

Resource suggestion for practicing modal logic and intuitionistic logic

Provide a Kripke model to prove that $\neg(\neg P\lor \neg Q\lor R)\to (P\land Q \land R)$ is false in intuitionistic logic

intuitionistic probability theory

Watered down axiom of choice

Possible worlds with different formal semantics

About Gödel-Gentzen negative translation

Are constant functions continuous in constructive mathematics?

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