query: Prove using Propositional logic laws | Killer question!
positive_passages.docid: 27550
positive_passages.text: How is (p ∧ q ∧ ¬r) ∨ (p ∧ ¬q ∧ ¬r) ≡ (p ∧ ¬r) ∨ (¬q ∧ q)? Is it really distributive property?
negative_passages.docid: 121720
negative_passages.text: Given ∃x.¬p(x), use the Fitch System to prove ¬∀x.p(x).
negative_passages.docid: 102088
negative_passages.text: Law of total probability on conditional
negative_passages.docid: 48368
negative_passages.text: Prove using Natural Deduction in predicate logic $(\forall x\ P(x))\to Q ⊢ \exists x (P(x)\to Q)$
negative_passages.docid: 116978
negative_passages.text: Trying to prove $p,p \to (r \to q) \vdash (\neg q \to \neg r)$ by using natural deduction.
negative_passages.docid: 84562
negative_passages.text: Proof using only field axioms
negative_passages.docid: 77332
negative_passages.text: Extremely difficult logic question using conditional statement
negative_passages.docid: 77286
negative_passages.text: Proving set theory question
negative_passages.docid: 40048
negative_passages.text: Finding the fallacy in this broken proof
negative_passages.docid: 154406
negative_passages.text: Real analysis - proof approach help
negative_passages.docid: 57724
negative_passages.text: How to prove boolean ordering question
negative_passages.docid: 72034
negative_passages.text: Truth table and the meaning of $\oplus$ in propositional logic
negative_passages.docid: 21035
negative_passages.text: Clarifying on how if p,q is logically equivalent to p only if q
negative_passages.docid: 141496
negative_passages.text: Could someone make the proof into a hinted exercise?
negative_passages.docid: 139064
negative_passages.text: Show by using logical connectives laws that $(P\to Q) \land (Q \to R) $ is equivalent to $(P \to R) \land [(P \iff Q) \lor (R \iff Q)]$
negative_passages.docid: 29110
negative_passages.text: Propositional Intuitionistic Logic Question
negative_passages.docid: 151356
negative_passages.text: Need Hints Prove "$((\neg \alpha \to \alpha) \to \alpha) $" Using Axiom 1,2,3 and MP and deduction theorem