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प्रश्न
If p → q is an implication, then the implication ∼ q → ∼ p is called its
विकल्प
Converse
Contrapositive
Inverse
Alternative
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उत्तर
Contrapositive
संबंधित प्रश्न
Using truth table prove that p ↔ q = (p ∧ q) ∨ (~p ∧ ~q).
Using truth table, prove the following logical equivalence:
(p ∧ q) → r ≡ p → (q → r)
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r : Sachin is happy.
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(Hint : p → q ≡ ∼ p ∨ q)
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Choose the correct alternative:
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