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Which one of the following is a tautology?
(1) $(p \wedge (p \to q)) \to q$
(2) $q \to (p \wedge (p \to q))$
(3) $p \wedge (p \vee q)$
(4) $p \vee (p \wedge q)$
Type: MCQ
Truth table shows $(p \wedge (p \to q)) \to q$ is always T.
BETA
