Translate the following inference to logic notation: For all x, if x_6 were a police officer, then x_6 is a doctor. For all x, x_6 will not drive a car or x_6 will take a plane. For all x, if x_6 takes a plane, then x_6 is a doctor. For all x, x_6 will drive a car or x_6 is a police officer. For all x, if x_6 were a doctor, then x_6 is playing squash. Therefore for all x, x_6 will play squash.
forall x: P(x) -> Q(x). forall x: ~R(x) or S(x). forall x: S(x) -> Q(x). forall x: R(x) or P(x). forall x: Q(x) -> T(x). Therefore forall x: T(x).