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Prove that the statement -~(pharr q) har...

Prove that the statement -`~(pharr q) harr {(p^^~q) vv (~p^^q)}` is a tautology.

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The statement ~(pharr~q) is

The statement ~(pharr~q) is -

Show that (p^^q)vv(~p)vv(p^^~q) is a tautology

(p^^~q)^^(~p^^q) is

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

Prove that truth table ~(pvq)=~p~q.

consider : Statement - I : (p^^~q)^^(~p^^q) is a fallacy . Statement -II : (prarrq)harr(~qrarr~p) is a tautology .

Statements -1 : ~(pharr~q) is equivalent to p harr q Statement-2: ~( p harr ~q) is a tautology.

Prove that ~((~p)^^q) -=pvv(~q) .

prove that (p^^q) ^^~(pvvq) is a contradiction.

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