Translate the following inference to logic notation: For all x, x_5 will take a plane if and only if x_5 will read a book. For all x, if x_5 were a police officer, then x_5 is a lawyer. For all x, x_5 is not a lawyer. For all x, if x_5 reads a book, then x_5 is a police officer. Therefore for all x, x_5 will not take a plane.
forall x: P(x) <-> Q(x). forall x: R(x) -> S(x). forall x: ~S(x). forall x: Q(x) -> R(x). Therefore forall x: ~P(x).