Translate the following inference to logic notation: For all x, if x_13 sleeps, then x_13 is driving a car. For all x, x_13 will listen to a song or x_13 will sleep. If Richard drives a car, then it is overcast. For all x, if x_13 listens to a song, then x_13 is driving a car. Therefore it is overcast.
forall x: P(x) -> Q(x). forall x: R(x) or P(x). Q(a) -> p. forall x: R(x) -> Q(x). Therefore p.