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| 1. |
~(~p) ↔ p is (A) a tautology (B) a contradiction (C) neither a contradiction nor a tautology (D) none of these |
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Answer» Correct option: (A) a tautology
All the entries in the last column of the above truth table is T. ∴ ~(~p) ↔ p is a tautology. |
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