Match the following:
(A) (1)
(B) (2)
(C) (3)
(D) (4)
Answer: (A)
Explanation:
- (p → q) ⇔ (¬q → ¬p) is Contrapositive
- [(p ∧ q) → r] ⇔ [p → (q → r)] is exportation law.
- (p → q) ⇔ [(p ∧ ¬q) → o] is Reductio ad absurdum
- (p ↔ q)⇔[(p → q)∧(q → p)] is Equivalence.
So, option (A) is correct.
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