Question

Expansion postulates in Belief revision logic

score 86 · Answer 1 · 2026-05-13 17:52:25

86

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Expansion postulates in Belief revision logic

Published on 13 May 2026 - 17:52

score 2.6k · Answer 2 · 2026-04-11 23:05:11

2.6k

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Prove that a sentence is a tautology using resolution

Published on 11 Apr 2026 - 23:05

score 58 · Answer 3 · 2026-04-14 22:27:45

58

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

Published on 14 Apr 2026 - 22:27

score 986 · Answer 4 · 2026-04-11 12:10:05

986

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Classical logic is the strongest consistent logical system

Published on 11 Apr 2026 - 12:10

score 133 · Answer 5 · 2026-04-12 10:11:53

133

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

Published on 12 Apr 2026 - 10:11

score 908 · Answer 6 · 2026-04-13 01:23:50

908

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

Published on 13 Apr 2026 - 1:23

score 403 · Answer 7 · 2026-04-12 16:11:53

403

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When is both a statement and its negation incorrect?

Published on 12 Apr 2026 - 16:11

score 1.6k · Answer 8 · 2026-05-14 11:40:21

1.6k

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Logical Reasoning Puzzle

Published on 14 May 2026 - 11:40

score 381 · Answer 9 · 2026-05-15 08:12:16

381

Views

Fitch-style Deductive Proof

Published on 15 May 2026 - 8:12

score 110 · Answer 10 · 2026-05-10 19:14:26

110

Views

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

Published on 10 May 2026 - 19:14

score 86 · Answer 11 · 2026-04-15 20:46:02

86

Views

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

Published on 15 Apr 2026 - 20:46

score 173 · Answer 12 · 2026-05-10 13:50:01

173

Views

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

Published on 10 May 2026 - 13:50

score 65 · Answer 13 · 2026-04-12 18:51:09

65

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

Published on 12 Apr 2026 - 18:51

score 146 · Answer 14 · 2026-04-13 13:04:33

146

Views

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

Published on 13 Apr 2026 - 13:04

score 84 · Answer 15 · 2026-05-11 03:39:50

84

Views

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

Published on 11 May 2026 - 3:39

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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