Question

Clarification for a rule in this sequent calculus

score 53 · Answer 1 · 2024-02-19 06:12:52

53

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Clarification for a rule in this sequent calculus

Published on 19 Feb 2024 - 6:12

score 47 · Answer 2 · 2024-02-24 21:31:25

47

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Property Equivalent to Maximally Consistent

Published on 24 Feb 2024 - 21:31

score 92 · Answer 3 · 2024-02-26 17:19:36

92

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Question about quantifiers in the proof of the cut eliminiation theorem

Published on 26 Feb 2024 - 17:19

score 78 · Answer 4 · 2024-02-27 01:16:28

78

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Why is there no conditional inference rule in Sequent Calculus of these forms?

Published on 27 Feb 2024 - 1:16

score 79 · Answer 5 · 2024-03-02 03:27:51

79

Views

Double negation in sequent calculus

Published on 02 Mar 2024 - 3:27

score 31 · Answer 6 · 2024-03-05 07:54:44

31

Views

Showing $\Gamma\vdash A$ and $\Gamma\vdash \lnot B$ from $\Gamma\vdash\lnot (A\to B)$ using sequent calculus

Published on 05 Mar 2024 - 7:54

score 71 · Answer 7 · 2024-03-09 01:32:26

71

Views

Use sequent calculus to show if $\Gamma\vdash t_1=t_2$ then $\Gamma\vdash f(t_1)=f(t_2)$

Published on 09 Mar 2024 - 1:32

score 74 · Answer 8 · 2024-03-18 20:50:55

74

Views

Deriving $\Phi\vdash\Delta$ from $\lnot\lnot\Phi\vdash\Delta$ without cut rule?

Published on 18 Mar 2024 - 20:50

score 55 · Answer 9 · 2024-03-31 20:48:27

55

Views

Examples of sequent derivations that uses cut rule that can be modified to not to use cut rule?

Published on 31 Mar 2024 - 20:48

score 184 · Answer 10 · 2015-06-22 08:39:35

184

Views

Explanation on the symmetry between identity axiom and cut rule

Published on 22 Jun 2015 - 8:39

score 512 · Answer 11 · 2015-06-23 14:05:03

512

Views

Using Sequent Calculus to prove $\exists x_1 x_2 [ B ( x_1 , x_2 ) \rightarrow \forall y_1 y_2 B ( y_1 , y_2 ) ]$

Published on 23 Jun 2015 - 14:05

score 533 · Answer 12 · 2015-10-02 18:04:24

533

Views

Equivalence rule for sequent calculus

Published on 02 Oct 2015 - 18:04

score 103 · Answer 13 · 2016-03-30 04:46:09

103

Views

How do I derive a proper natural deduction proof for $\{(\phi\leftrightarrow(\psi\leftrightarrow\psi))\}\vdash\phi$?

Published on 30 Mar 2016 - 4:46

score 226 · Answer 14 · 2016-03-30 05:41:51

226

Views

The textbook's way of deriving a natural deduction proof of $\vdash((\phi\leftrightarrow\psi)\leftrightarrow\phi)$ feels wrong.

Published on 30 Mar 2016 - 5:41

score 268 · Answer 15 · 2016-04-01 02:21:52

268

Views

The textbook's natural deduction proof for $\vdash(\neg(\phi\to\psi)\to\phi)$ seems to be wrong with regard to RAA(Reductio Ad Absurdum).

Published on 01 Apr 2016 - 2:21

List Question

Clarification for a rule in this sequent calculus

Property Equivalent to Maximally Consistent

Question about quantifiers in the proof of the cut eliminiation theorem

Why is there no conditional inference rule in Sequent Calculus of these forms?

Double negation in sequent calculus

Showing $\Gamma\vdash A$ and $\Gamma\vdash \lnot B$ from $\Gamma\vdash\lnot (A\to B)$ using sequent calculus

Use sequent calculus to show if $\Gamma\vdash t_1=t_2$ then $\Gamma\vdash f(t_1)=f(t_2)$

Deriving $\Phi\vdash\Delta$ from $\lnot\lnot\Phi\vdash\Delta$ without cut rule?

Examples of sequent derivations that uses cut rule that can be modified to not to use cut rule?

Explanation on the symmetry between identity axiom and cut rule

Using Sequent Calculus to prove $\exists x_1 x_2 [ B ( x_1 , x_2 ) \rightarrow \forall y_1 y_2 B ( y_1 , y_2 ) ]$

Equivalence rule for sequent calculus

How do I derive a proper natural deduction proof for $\{(\phi\leftrightarrow(\psi\leftrightarrow\psi))\}\vdash\phi$?

The textbook's way of deriving a natural deduction proof of $\vdash((\phi\leftrightarrow\psi)\leftrightarrow\phi)$ feels wrong.

The textbook's natural deduction proof for $\vdash(\neg(\phi\to\psi)\to\phi)$ seems to be wrong with regard to RAA(Reductio Ad Absurdum).

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