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Statements (p to q) harr (q to p)...

Statements `(p to q) harr (q to p)`

A

is contradiction

B

is tautology

C

is neither contradiction not tautology

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
`(~q to ~p)` is contrapositive of `(p to q)`
Therefore, `(pto q) harr(~q to ~p)` is tautology.
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