Use the substitution rules to verify that each of the following is a tautology. (Here p, q,

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Use the substitution rules to verify that each of the following is a tautology. (Here p, q, and r are primitive statements.)
(a) [p ∨ (q ∧ r)] ∨ ¬[p ∨ (q ∧ r)]
(b) [(p ∨ q) → r] ↔ [¬r → ¬(p ∨ q)]

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Discrete and Combinatorial Mathematics An Applied Introduction

ISBN: 978-0201726343

5th edition

Authors: Ralph P. Grimaldi

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Question Posted: Jun 21, 2016 08:05 AM

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Use the substitution rules to verify that each of the following is a tautology. (Here p, q,

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a For a primitive statement s s V s T 0 Replace each occurrence ...View the full answer

Discrete and Combinatorial Mathematics An Applied Introduction

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