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Q)

The statement $\sim(p \leftrightarrow \sim q)$ is

$\begin {array} {1 1} (A) \; equivalent \;to \;p \leftrightarrow q \\ (B) \; equivalent \;to\; \sim p \leftrightarrow q \\ (C) \; a \;tautology \\ (D)\; a\; fallacy \end {array}$

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A)

option (A) - equivalent to p<->q

p q ~q p<->~q ~(p<->~q) p<->q
T T F F T T
T F T T F F
F T F T F F
F F T F T T

since last 2 columns are same

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