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Among the two statements (S1) :(p impl...

Among the two statements
(S1) :`(p implies q)^^(p^^(~q))` is a contradiction and
(S2) :`(p^^q)vv((~q))vv((~q)^^(~q))` is a tautology

A

both ae true

B

only (S1)is true

C

only (S2)is true

D

both are false

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