Contradiction 55571
Use the truth table to evaluate the truth of the compound statement
(a) [P ∧ (Q ∨ R)] ⇔ [(P ∧ Q) ∨ (P ∧ R)]
(b) ¬(P ⇒ ¬Q) ⇒ (¬P ∧ Q)
and decide each time whether it is a tautology or A contradiction.
(a) [P ∧ (Q ∨ R)] ⇔ [(P ∧ Q) ∨ (P ∧ R)]
(b) ¬(P ⇒ ¬Q) ⇒ (¬P ∧ Q)
and decide each time whether it is a tautology or A contradiction.
Correct answer:
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