The contrapositive of \( (p \vee q) \rightarrow r \) is....

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The contrapositive of \( (p \vee q) \rightarrow r \) is
(1) \( r \rightarrow(p \vee q) \)
(2) \( \quad \sim r \rightarrow(p \vee q) \)
(3) \( \sim r \rightarrow(\sim p \wedge \sim q) \)
(4) \( p \rightarrow(q \vee r) \)
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