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Which of the following is a tautology?
(1) $(\sim p) \wedge (p \vee q) \to q$
(2) $(q \to p) \vee \sim(p \to q)$
(3) $(\sim q) \vee (p \wedge q) \to q$
(4) $(p \to q) \wedge (q \to p)$
Type: MCQ
Truth table shows $(\sim p) \wedge (p \vee q) \to q$ is a tautology. Other options are not tautologies.
BETA
