Translate the following inference to logic notation: For all x, if x_6 were a sailor, then x_6 is a mechanic. For all x, if x_6 plays tennis, then x_6 is a sailor. For all x, x_6 will play tennis. For all x, x_6 is a nurse. Therefore for all x, x_6 is a mechanic.
forall x: P(x) -> Q(x). forall x: R(x) -> P(x). forall x: R(x). forall x: S(x). Therefore forall x: Q(x).