A) \[\tilde{\ }q\Rightarrow \,\tilde{\ }p\]
B) \[p\Leftrightarrow q\]
C) \[q\Rightarrow p\]
D) None of these
Correct Answer: A
Solution :
[a] Contrapositive of \[p\Rightarrow q\] is \[(\sim q)\Rightarrow (\sim p)\]
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