If PPP is 'It is raining' and QQQ is 'The grass is wet', what is the inverse of P ⟹ QP \implies QP⟹Q?
¬P ⟹ ¬Q\neg P \implies \neg Q¬P⟹¬Q
¬Q ⟹ ¬P\neg Q \implies \neg P¬Q⟹¬P
Q ⟹ PQ \implies PQ⟹P
P ⟹ ¬QP \implies \neg QP⟹¬Q