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15
Math.TechQA.Club
2026-03-29 10:36:15
57
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From $(p\lor q)\to r, s\to\neg p, s\land\neg q$, prove $\neg r$
Published on
29 Mar 2026 - 10:36
#logic
#propositional-calculus
51
Views
Looking for an example of a $\mathcal{L}$-expression
Published on
13 May 2026 - 0:37
#discrete-mathematics
#logic
#propositional-calculus
#formal-languages
27
Views
Help to prove that $ \Gamma \equiv\Gamma \setminus \{P\mid \models P\} $
Published on
29 Mar 2026 - 10:37
#logic
#propositional-calculus
90
Views
Foundations of Logic (validity of the argument)
Published on
29 Mar 2026 - 10:37
#logic
#propositional-calculus
184
Views
Use induction to show that a truth assignment on $\Gamma\cup\Lambda$ satisfies all theorem from $\Gamma$
Published on
10 May 2026 - 20:57
#proof-verification
#logic
#induction
#propositional-calculus
#hilbert-calculus
62
Views
Logical Entailment with Different Signatures
Published on
29 Mar 2026 - 10:27
#logic
#propositional-calculus
98
Views
Negation of statement
Published on
10 May 2026 - 13:46
#logic
#propositional-calculus
#predicate-logic
#boolean-algebra
246
Views
Syntactic proof
Published on
05 Apr 2026 - 10:27
#logic
#propositional-calculus
166
Views
k-CNF formulae and formulae that are not equivalent to them
Published on
10 May 2026 - 13:59
#logic
#propositional-calculus
#predicate-logic
#conjunctive-normal-form
#disjunctive-normal-form
83
Views
Reduce Logical Expression
Published on
10 May 2026 - 13:44
#logic
#propositional-calculus
393
Views
How to use axioms to prove a derivation in propositional calculus?
Published on
10 May 2026 - 19:12
#logic
#propositional-calculus
#formal-systems
229
Views
Is the argument valid or invalid?
Published on
06 Apr 2026 - 1:36
#logic
#propositional-calculus
143
Views
How to find a proof of a formula in propositional calculus?
Published on
14 May 2026 - 8:04
#propositional-calculus
#hilbert-calculus
891
Views
Is the following argument valid?
Published on
06 Apr 2026 - 5:47
#logic
#propositional-calculus
1k
Views
Proof of Peirce's Law in Propositional Calculus
Published on
29 Mar 2026 - 10:37
#logic
#propositional-calculus
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