Which of these is NOT logically equivalent to PleftrightarrowQP \\leftrightarrow QPleftrightarrowQ?
(PrightarrowQ)land(QrightarrowP)(P \\rightarrow Q) \\land (Q \\rightarrow P)(PrightarrowQ)land(QrightarrowP)
(PlandQ)lor(negPlandnegQ)(P \\land Q) \\lor (\\neg P \\land \\neg Q)(PlandQ)lor(negPlandnegQ)
neg(PoplusQ)\\neg(P \\oplus Q)neg(PoplusQ) (where oplus\\oplusoplus is XOR)
(PlorQ)rightarrow(PlandQ)(P \\lor Q) \\rightarrow (P \\land Q)(PlorQ)rightarrow(PlandQ)