Which of the following is logically equivalent to P→QP \rightarrow QP→Q?
¬P→¬Q\neg P \rightarrow \neg Q¬P→¬Q
¬Q→¬P\neg Q \rightarrow \neg P¬Q→¬P
¬P∨Q\neg P \lor Q¬P∨Q
P∧¬QP \land \neg QP∧¬Q