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Question

(p q)(p q) is ___.


A

A tautology

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B

A fallacy

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C

Both a tautology and a fallacy

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D

Neither a tautology nor a fallacy

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Solution

The correct option is B

A fallacy


The AND connective is associative and commutative.
Hence, (p q)(p q)=(p p)(qq)
This statement is always false.


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