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Question
Write the negation of the following statement.
7 is prime number and Tajmahal is in Agra.
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Solution
Let p : 7 is prime number.
q : Tajmahal is in Agra.
The given statement in symbolic form is p ∧ q.
Its negation is ~(p ∧ q) ≡ ~p ∨ ~q.
∴ The negation of given statement is '7 is not prime number or Tajmahal is not in Agra.'
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