Consider the implication P ⟹ QP \implies QP⟹Q. Which of the following is logically equivalent?
¬P∨Q\neg P \lor Q¬P∨Q
¬Q ⟹ ¬P\neg Q \implies \neg P¬Q⟹¬P
¬(P∧¬Q)\neg(P \land \neg Q)¬(P∧¬Q)
All of the above