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15
Math.TechQA.Club
2026-03-31 05:37:20
71
Views
Factorize Boolean Function
Published on
31 Mar 2026 - 5:37
#logic
#propositional-calculus
#boolean-algebra
48
Views
Why is Boolean complement not the same as integer cancellation?
Published on
17 Dec 2019 - 15:59
#abstract-algebra
#logic
#finite-groups
#propositional-calculus
435
Views
Simple Fitch Proof
Published on
18 Dec 2019 - 8:28
#logic
#propositional-calculus
171
Views
Discharging Assumptions and Conditional Introduction (Chiswell and Hodges)
Published on
23 Feb 2026 - 8:38
#logic
#propositional-calculus
#formal-proofs
#sequent-calculus
100
Views
Natural deduction for equivalence
Published on
28 Mar 2026 - 8:29
#propositional-calculus
#natural-deduction
179
Views
Prove the theorem by using natural deduction in propositional logic. Is it right to use De Morgan laws?
Published on
26 Mar 2026 - 2:55
#propositional-calculus
#natural-deduction
53
Views
get the proof of theorem using natural deduction
Published on
26 Mar 2026 - 2:34
#propositional-calculus
#natural-deduction
45
Views
Find 4 formulas. Each pair has exactly one common model. Three of them have no common models
Published on
19 Dec 2019 - 21:22
#logic
#propositional-calculus
405
Views
How to prove $((A \to B) \to A) \to A$ using Lukasiewicz's axioms, MP and deduction theorem?
Published on
23 Feb 2026 - 2:59
#logic
#propositional-calculus
#formal-proofs
#hilbert-calculus
816
Views
Are deduction rules just truth tables?
Published on
27 Mar 2026 - 10:44
#logic
#propositional-calculus
#axioms
115
Views
Is there a sentence $\phi$ that is entailed by all sentences with the same properties as $\phi$? Does $\phi$ entail all of these sentences?
Published on
30 Mar 2026 - 20:44
#logic
#propositional-calculus
#first-order-logic
#predicate-logic
172
Views
Seeking a proof equivalent to the story "She said that I would stop her if she told me why she is leaving, so I decided to stop her anyway!"
Published on
20 Dec 2019 - 21:35
#logic
#proof-writing
#propositional-calculus
53
Views
Help understanding the proof of the compactness theorem
Published on
21 Dec 2019 - 7:43
#logic
#propositional-calculus
114
Views
laws of logic / rules of logic? to what extent is the distinction pertinent?
Published on
21 Dec 2019 - 19:52
#logic
#propositional-calculus
82
Views
How to prove a statement that contains two biconditionals: Exercise in Pinter's A Book of Abstract Algebra
Published on
22 Dec 2019 - 3:48
#abstract-algebra
#group-theory
#notation
#propositional-calculus
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