Translate the following inference to logic notation: For all x, x is a politician or x is a taxi driver. For all x, x is fast. For all x, x is not a politician. Therefore for all x, x is a taxi driver and x is fast.
forall x: P(x) or Q(x). forall x: R(x). forall x: ~P(x). Therefore forall x: Q(x) and R(x).