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GATE | GATE CS 1997 | Question 17

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  • Last Updated : 11 Oct, 2021
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Which of the following propositions is a tautology?
(A) (p ∨ q) → p
(B) p ∨ (q → p)
(C) p ∨ (p → q)
(D) p → (p → q)


Answer: (C)

Explanation:



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