JEE Main 2019 — Math solution | Fundamenthol

JEE Main2019Math

Q.

Which one of the following statements is not a tautology?

A
(p $\land$ q) $\to$ (~p) $\lor$ q
B
(p $\land$ q) $\to$ p
C
(p $\lor$ q) $\to$ (p $\lor$ (~q))
D
p $\to$ (p $\lor$ q)

Solution

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