Question

How do I prove the Deduction theorem using tableaux in propositional logic?

score 211 · Answer 1 · 2026-03-29 10:07:47

211

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How do I prove the Deduction theorem using tableaux in propositional logic?

Published on 29 Mar 2026 - 10:07

score 532 · Answer 2 · 2016-08-22 00:34:42

532

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Fill in the blank to make true identities: $(A\Delta B)\cap C=(C\setminus A)\Delta(\_\_\_)$, $A,B,C$ set of real numbers.

Published on 22 Aug 2016 - 0:34

score 1.2k · Answer 3 · 2026-04-01 05:38:34

1.2k

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Relation between propositional logic, boolean algebras and truth tables

Published on 01 Apr 2026 - 5:38

score 186 · Answer 4 · 2026-04-01 03:38:40

186

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Filters and preorders

Published on 01 Apr 2026 - 3:38

score 126 · Answer 5 · 2016-08-23 08:04:35

126

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for all integers $a$ and $b$, if $a \equiv 2 (\text{mod}\,4)$ and $b$ is odd, then $ab \equiv2 (\text{mod}\,4)$

Published on 23 Aug 2016 - 8:04

score 47 · Answer 6 · 2016-08-23 21:11:08

47

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Could you help me prove next sentence?

Published on 23 Aug 2016 - 21:11

score 102 · Answer 7 · 2026-03-29 10:14:33

102

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Prerequisites for consistency proofs of propositional calculus

Published on 29 Mar 2026 - 10:14

score 131 · Answer 8 · 2026-03-28 08:09:52

131

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Does There Exist an M-Proof Shorter than Twenty-Lines of the Rule of Antecedent Commutation?

Published on 28 Mar 2026 - 8:09

score 2.5k · Answer 9 · 2016-08-25 08:31:07

2.5k

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Logic proof: Prove The Completeness of the Resolution Process

Published on 25 Aug 2016 - 8:31

score 143 · Answer 10 · 2026-03-25 06:03:55

143

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Can Left Conjunction Elimination Get Proven in M in Less Than 30 lines?

Published on 25 Mar 2026 - 6:03

score 270 · Answer 11 · 2026-03-25 09:28:54

270

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Does the Definition of a Formal Proof in Mendelson's Book Allow for the Use of Theorem/Derived Axiom Schema in Formal Proofs?

Published on 25 Mar 2026 - 9:28

score 3.3k · Answer 12 · 2016-08-28 10:03:15

3.3k

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Propositional logic: subjective statements

Published on 28 Aug 2016 - 10:03

score 1.6k · Answer 13 · 2026-03-25 12:52:09

1.6k

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Show that this formula is a tautology by converting to CNF

Published on 25 Mar 2026 - 12:52

score 3.9k · Answer 14 · 2016-08-28 12:57:45

3.9k

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Does "either or " means XOR or OR?

Published on 28 Aug 2016 - 12:57

score 68 · Answer 15 · 2026-03-25 09:29:20

68

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Can the Negation of a Conditional Implying the First Atomic Proposition Get Proven in Around 50 Steps?

Published on 25 Mar 2026 - 9:29

List Question

How do I prove the Deduction theorem using tableaux in propositional logic?

Fill in the blank to make true identities: $(A\Delta B)\cap C=(C\setminus A)\Delta(\_\_\_)$, $A,B,C$ set of real numbers.

Relation between propositional logic, boolean algebras and truth tables

Filters and preorders

for all integers $a$ and $b$, if $a \equiv 2 (\text{mod}\,4)$ and $b$ is odd, then $ab \equiv2 (\text{mod}\,4)$

Could you help me prove next sentence?

Prerequisites for consistency proofs of propositional calculus

Does There Exist an M-Proof Shorter than Twenty-Lines of the Rule of Antecedent Commutation?

Logic proof: Prove The Completeness of the Resolution Process

Can Left Conjunction Elimination Get Proven in M in Less Than 30 lines?

Does the Definition of a Formal Proof in Mendelson's Book Allow for the Use of Theorem/Derived Axiom Schema in Formal Proofs?

Propositional logic: subjective statements

Show that this formula is a tautology by converting to CNF

Does "either or " means XOR or OR?

Can the Negation of a Conditional Implying the First Atomic Proposition Get Proven in Around 50 Steps?

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