Translate the following inference to logic notation: For all x, x_5 will not play squash. For all x, if x_5 were an electrician, then x_5 is playing squash. For all x, x_5 will drive a car if and only if x_5 is an electrician. Therefore for all x, x_5 will not drive a car.
forall x: ~P(x). forall x: Q(x) -> P(x). forall x: R(x) <-> Q(x). Therefore forall x: ~R(x).