Translate the following inference to logic notation: There is at least one x for which if x_11 reads a book, then x_11 is driving a car. For all x, if x_11 were a musician, then x_11 is driving a car. For all x, x_11 will drive a car if and only if x_11 is a politician. For all x, x_11 will read a book or x_11 is a musician. Therefore there is at least one x for which x_11 is a politician.
exists x: P(x) -> Q(x). forall x: R(x) -> Q(x). forall x: Q(x) <-> S(x). forall x: P(x) or R(x). Therefore exists x: S(x).