The contrapositive of \( (p \vee q) \Rightarrow r \) is
(a) \( r \Rightarrow(p \vee q) \)
(b) \(...
The contrapositive of \( (p \vee q) \Rightarrow r \) is
(a) \( r \Rightarrow(p \vee q) \)
(b) \( \sim r \Rightarrow(p \vee q) \)
(c) \( \sim r \Rightarrow \sim p \wedge \sim q \)
(d) \( p \Rightarrow(q \vee r) \)
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