Consider the four statements: 1.(q==>p) (~p) 2. p==>(~q) V r 3. ~p==>~ – McqOptions

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1.	Consider the four statements: 1.(q==>p) (~p) 2. p==>(~q) V r 3. ~p==>~(p q) 4.p q ~(pVq) Which one is tautology.
A.	A
B.	B
C.	C
D.	D
Answer» D. D

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