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प्रश्न
Write the negation of the following statement.
All men are animals.
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उत्तर
Some men are not animals.
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संबंधित प्रश्न
Examine whether each of the following statement patterns is a tautology or a contradiction or a contingency.
[~(~p ∧ ~q)] v q
Using truth table prove that p ↔ q = (p ∧ q) ∨ (~p ∧ ~q).
Write down the following statements in symbolic form :
(A) A triangle is equilateral if and only if it is equiangular.
(B) Price increases and demand falls
Write the following compound statement symbolically.
Hima Das wins gold medal if and only if she runs fast.
Construct the truth table of the following:
[(∼p ∨ q) ∧ (q → r)] → (p → r)
Write the truth value of the negation of the following statement.
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The Sun has set and Moon has risen.
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Write the negation of p → q
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Let p, q and r be any three logical statements. Which of the following is true?
Write the following statement in symbolic form.
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Using truth table prove that:
~ (p `leftrightarrow` q) ≡ (p ∧ ~ q) ∨ (q ∧ ~ p)
