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~[(p ^^ q)to(~p vv q)] is a...

`~[(p ^^ q)to(~p vv q)]` is a

A

tautology

B

contradiction

C

Neither (a) nor (b)

D

Either (a) or (b)

Text Solution

Verified by Experts

The correct Answer is:
B

It is clear from the table that,
`~[(p ^^ q) to (~ p vv q)]` is a contradiction.
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