Which of the following is a tautology ?
none of these
As we have learned
Tautology and Fallacy -
Negation of Tautology is a fallacy and vice versa.
-
p | q | p→q | (p→q)^p | [(p→q)^p]→v |
T | T | T | T | T |
T | F | F | F | T |
F | T | T | F | T |
F | F | T | F | T |
Thus it is tautology
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