Which of the following statements is a tautology?

(\sim p \lor q) \to\sim (p \lor \sim q)

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(\sim p \lor \sim q) \to p \lor q

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(p \lor \sim q) \land (p \lor q)

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(\sim p \lor \sim q) \lor (p \lor q)

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Solution

The correct option is D $(\sim p \lor \sim q) \lor (p \lor q)$

By the table we can get that the answer is option $D .$

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