A) \[r\Rightarrow (p\vee q)\]
B) \[\tilde{\ }r\Rightarrow (p\vee q)\]
C) \[\tilde{\ }r\Rightarrow \tilde{\ }p\wedge \tilde{\ }q\]
D) \[p\Rightarrow (q\vee r)\]
Correct Answer: C
Solution :
[c] Contrapositive of \[p\Rightarrow q\] is \[\tilde{\ }q\Rightarrow \tilde{\ }p\] \[\therefore \] Contrapositive of \[(p\vee q)\Rightarrow r\] is \[\tilde{\ }r\Rightarrow \tilde{\ }(p\vee q)i.e.\tilde{\ }r\Rightarrow (\tilde{\ }p\wedge \tilde{\ }q)\]
You need to login to perform this action.
You will be redirected in
3 sec
