Translate the following inference to logic notation: For all x, if x_6 were a taxi driver, then x_6 is an artist. For all x, x_6 will not drive a car. For all x, x_6 will drive a car or x_6 is not an artist. Therefore for all x, x_6 is not a taxi driver.
forall x: P(x) -> Q(x). forall x: ~R(x). forall x: R(x) or ~Q(x). Therefore forall x: ~P(x).