Question:
Which of the following statements is a tautology?
Correct Option: , 4
Solution:
$(\sim p \wedge q) \rightarrow(p \vee q)$
$\Rightarrow \sim\{(\sim p \wedge q) \wedge(\sim p \wedge \sim q)\}$
$\Rightarrow \sim\{p \wedge f\}$
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