Translate the following inference to logic notation: For all x, x_11 is a server if and only if x_11 is a politician. For all x, if x_11 were a politician, then x_11 is a taxi driver. For all x, x_11 is a server. Therefore for all x, x_11 is a taxi driver or x_11 will cook.
forall x: P(x) <-> Q(x). forall x: Q(x) -> R(x). forall x: P(x). Therefore forall x: R(x) or S(x).