Translate the following inference to logic notation: For all x, x_5 is an artist if and only if x_5 will drive a car. For all x, x_5 is an artist if and only if x_5 will take a plane. For all x, if x_5 drives a car, then x_5 is a soldier. For all x, x_5 is not a soldier. Therefore for all x, x_5 will not take a plane.
forall x: P(x) <-> Q(x). forall x: P(x) <-> R(x). forall x: Q(x) -> S(x). forall x: ~S(x). Therefore forall x: ~R(x).