Translate the following inference to logic notation: For all x, x_9 will drive a car if and only if x_9 is a bartender. For all x, if x_9 drives a car, then x_9 is a bartender. For all x, if x_9 were a scientist, then x_9 is a bartender. For all x, x_9 will not drive a car. Therefore for all x, x_9 is not a scientist.
forall x: P(x) <-> Q(x). forall x: P(x) -> Q(x). forall x: R(x) -> Q(x). forall x: ~P(x). Therefore forall x: ~R(x).