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Question

If p, q, r be three statement, then (p(qr))((pΛq)r) is a

A
Tautology
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B
Fallacy
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C
Neither tautology nor fallacy
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D
None of these
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Solution

The correct option is D Tautology
p(qr)p(qr)
p(qr)[p(q)]r
(pq)r(pq)r

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