If \( p \) is any statement, and ' \( t \) ' represents a tautology ' \( f \) ' represents a con....

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If \( p \) is any statement, and ' \( t \) ' represents a tautology ' \( f \) ' represents a contradiction then which of the following
P
is (are) true?
W.
(1) \( p \wedge t \equiv p \)
(2) \( p \wedge f \equiv f \)
(3) \( p \vee t \equiv t \)
(4) \( p \vee f \equiv f \)


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