A) tautology and contradiction
B) neither tautology nor contradiction
C) contradiction
D) tautology
Correct Answer: C
Solution :
\[p\] | \[\sim p\] | \[p\Rightarrow \sim p\] | \[\sim p\Rightarrow p\] | \[(p\Rightarrow \sim p)\,\wedge \,(\sim p\Rightarrow p)\] |
T | F | F | T | F |
F | T | T | F | F |
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