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Which of the following is true for any t...

Which of the following is true for any two statements p and q?
a)``~(pv~q)=~p^q b)~p^q is a fallacy c)`(pv~q)` is a tautology d)pv~p is a contradiction

A

`~[pwedge(~q)]-=(~p)wedgeq`

B

`(pwedgeq)wedge(~q)` is a tautology

C

`(pwedgeq)wedge(~q)` is contradiction

D

`~(pvvq)-=(~p)vv(~q)`

Text Solution

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The correct Answer is:
D
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