Translate the following inference to logic notation: There is at least one x for which x_8 is a server if and only if x_8 will take a plane. For all x, x_8 is a police officer if and only if x_8 will take a plane. Therefore there is at least one x for which if x_8 were a server, then x_8 is a police officer.
exists x: P(x) <-> Q(x). forall x: R(x) <-> Q(x). Therefore exists x: P(x) -> R(x).