Which one of the following statements is not a tautology? (1) $p \vee q \rightarrow p \vee ( \sim q )$ (2) $p \wedge q \rightarrow ( \sim p \vee q )$ (3) $p \rightarrow p \vee q$ (4) $p \wedge q \rightarrow p$
Which one of the following statements is not a tautology?\\
(1) $p \vee q \rightarrow p \vee ( \sim q )$\\
(2) $p \wedge q \rightarrow ( \sim p \vee q )$\\
(3) $p \rightarrow p \vee q$\\
(4) $p \wedge q \rightarrow p$