Which of the following describes the 'Law of Contraposition'?
(P ⟹ Q)≡(Q ⟹ P)(P \implies Q) \equiv (Q \implies P)(P⟹Q)≡(Q⟹P)
(P ⟹ Q)≡(¬Q ⟹ ¬P)(P \implies Q) \equiv (\neg Q \implies \neg P)(P⟹Q)≡(¬Q⟹¬P)
(P ⟹ Q)≡(¬P ⟹ ¬Q)(P \implies Q) \equiv (\neg P \implies \neg Q)(P⟹Q)≡(¬P⟹¬Q)
(P ⟹ Q)≡(P∨¬Q)(P \implies Q) \equiv (P \lor \neg Q)(P⟹Q)≡(P∨¬Q)