A
$\forall x(P(x) \vee Q(x)) \Leftrightarrow \forall x P(x) \vee \forall x Q(x)$
B
$\exists x(P(x) \vee Q(x)) \Leftrightarrow \exists x P(x) \vee \exists x Q(x)$
C
$\forall x(P(x) \rightarrow Q) \Leftrightarrow \forall x P(x) \rightarrow Q$
D
$\exists x(P(x) \rightarrow Q) \Leftrightarrow \exists x P(x) \rightarrow Q$
E
F