AP ICET 24 May 2023 Shift 1 Solved Paper

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Question : 181 of 200

Marks: +1, -0

Which of the following represents tautology?

$≈ \p ⇒ ∼ {\q}$
$\p \Λ(∼ \p \Λ \q)$
$(\p ⇒ \q) \Λ(\p \Λ \q)$
$[\p \Λ(\p ⇒ \q)] ⇒ \q$

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