Question

Expansion postulates in Belief revision logic

score 79 · Answer 1 · 2026-03-26 01:54:09

79

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Expansion postulates in Belief revision logic

Published on 26 Mar 2026 - 1:54

score 2.6k · Answer 2 · 2018-06-26 12:21:24

2.6k

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Prove that a sentence is a tautology using resolution

Published on 26 Jun 2018 - 12:21

score 55 · Answer 3 · 2018-06-26 13:23:12

55

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If $b$ is tautology and $c$ is contradiction why isn't $a\to (b\to c)$ a contradiction?

Published on 26 Jun 2018 - 13:23

score 984 · Answer 4 · 2026-03-25 20:34:05

984

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Classical logic is the strongest consistent logical system

Published on 25 Mar 2026 - 20:34

score 130 · Answer 5 · 2018-06-28 14:31:59

130

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How is the statement $\bot \to \top$ true?

Published on 28 Jun 2018 - 14:31

score 907 · Answer 6 · 2026-03-28 06:48:18

907

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Is "$x$ is an integer, $1 < x < 3$, and $x^2 = 4$" a proposition?

Published on 28 Mar 2026 - 6:48

score 400 · Answer 7 · 2018-07-03 21:32:36

400

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When is both a statement and its negation incorrect?

Published on 03 Jul 2018 - 21:32

score 1.6k · Answer 8 · 2026-03-24 23:52:27

1.6k

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Logical Reasoning Puzzle

Published on 24 Mar 2026 - 23:52

score 376 · Answer 9 · 2026-03-27 04:55:26

376

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Fitch-style Deductive Proof

Published on 27 Mar 2026 - 4:55

score 101 · Answer 10 · 2026-03-23 03:21:44

101

Views

Proof of $p\rightarrow(q\rightarrow r)\vdash_{HR} (p\rightarrow q)\rightarrow r$

Published on 23 Mar 2026 - 3:21

score 83 · Answer 11 · 2018-07-08 19:31:21

83

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Determine both the conjunctive and disjunctive normal forms for the following expression [verification]

Published on 08 Jul 2018 - 19:31

score 170 · Answer 12 · 2026-03-25 08:01:52

170

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Has the satisfiability of the following horn expressions correctly been determined? [verification]

Published on 25 Mar 2026 - 8:01

score 61 · Answer 13 · 2018-07-12 01:16:40

61

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Prove that $\hat{h}_1(S) = \hat{h}_2(S)$ in propositional logic.

Published on 12 Jul 2018 - 1:16

score 143 · Answer 14 · 2018-07-12 03:16:01

143

Views

Proof that propositional logic remains consistent after the addition of a single axiom

Published on 12 Jul 2018 - 3:16

score 78 · Answer 15 · 2026-03-23 01:11:45

78

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Converting $\big( (A \lor B) \land ((B \leftrightarrow A) \to C) \big) \lor (C \to \neg A)$ to CNF.

Published on 23 Mar 2026 - 1:11

List Question

Expansion postulates in Belief revision logic

Prove that a sentence is a tautology using resolution

If $b$ is tautology and $c$ is contradiction why isn't $a\to (b\to c)$ a contradiction?

Classical logic is the strongest consistent logical system

How is the statement $\bot \to \top$ true?

Is "$x$ is an integer, $1 < x < 3$, and $x^2 = 4$" a proposition?

When is both a statement and its negation incorrect?

Logical Reasoning Puzzle

Fitch-style Deductive Proof

Proof of $p\rightarrow(q\rightarrow r)\vdash_{HR} (p\rightarrow q)\rightarrow r$

Determine both the conjunctive and disjunctive normal forms for the following expression [verification]

Has the satisfiability of the following horn expressions correctly been determined? [verification]

Prove that $\hat{h}_1(S) = \hat{h}_2(S)$ in propositional logic.

Proof that propositional logic remains consistent after the addition of a single axiom

Converting $\big( (A \lor B) \land ((B \leftrightarrow A) \to C) \big) \lor (C \to \neg A)$ to CNF.

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