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Which one of the following statements is...

Which one of the following statements is not a tautology ?

A

`(p wedge q) to p`

B

`p to (p vee q)`

C

`(p wedge q) to (~p) vee q`

D

`(p vee q) to (p vee (~q))`

Text Solution

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The correct Answer is:
D
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