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Mathematics
If p is any statement, t is a tautology and c is a contradiction then which fo the following is not correct-
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Q. If $p$ is any statement, $t$ is a tautology and $c$ is $a$ contradiction then which fo the following is not correct-
Mathematical Reasoning
A
$p \wedge(\sim c) \equiv p$
B
$p \vee(\sim t) \equiv p$
C
$t \vee c \equiv p \vee t$
D
$(p \wedge t) \vee(p \vee c) \equiv(t \wedge c)$
Solution:
Correct answer is (d) $(p \wedge t) \vee(p \vee c) \equiv(t \wedge c)$