Translate the following inference to logic notation: For all x, if x_16 plays a game, then x_16 is driving a car. For all x, x_16 is fast. For all x, if x_16 were fast, then x_16 is playing a game. Therefore David is driving a car or Karen is an office clerk.
forall x: P(x) -> Q(x). forall x: R(x). forall x: R(x) -> P(x). Therefore Q(a) or p.