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Question

The negation of p~pq


A

pp~q

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B

p~pq

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C

pq

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D

p~q

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Solution

The correct option is D

p~q


Explanation for correct option:

Option (D): p~q

pq~p~q~pqp~pqp~q~p~pq
FFTTTTFF
FTTFTTFF
TFFTFFTT
TTFFTTFF

Thus, option (D) is correct.

Explanation for incorrect options:

Option(A): pp~q

pq~p~q~pqp~pqp~qpp~q ~p~pq
FFTTTTTTF
FTTFTTFFF
TFFTFFTTT
TTFFTTTTF

Thus, option (A) is incorrect.

Option(B): p~pq

pq~p~q~pqp~pq~pqp~pq~p~pq
FFTTTTTTF
FTTFTTFTF
TFFTFFFFT
TTFFTTFFF

Thus, option (B) is incorrect.

Option(C): pq

pq~p~q~pqp~pqpq~p~pq
FFTTTTTF
FTTFTTTF
TFFTFFFT
TTFFTTTF

Thus, option (C) is incorrect.

Hence option (D) is correct.


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