A) A tautology
B) A contradiction
C) Neither a tautology nor a contradiction
D) Either a tautology or a contradiction
Correct Answer: C
Solution :
[c]| p | q | \[\tilde{\ }p\vee q\] | \[\tilde{\ }p\wedge \tilde{\ }q\] | \[(\tilde{\ }p\vee q)\]\[\wedge \]\[(\tilde{\ }p\wedge \tilde{\ }q)\] |
| T | T | T | F | F |
| T | F | F | F | F |
| F | T | T | F | |
| F | F | T | T | T |
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