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Question

The proposition p~p~pp is a


A

Tautology and contradiction

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B

Neither tautology nor contradiction

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C

Contradiction

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D

Tautology

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Solution

The correct option is C

Contradiction


Explanation for the correct option:

Given proposition, p~p~pp

Make a truth table

p~pp~p~ppp~p~ppTFFTFFTTFF

p~p~pp is a contradiction.

Hence, option (C) is the correct answer.


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