Translate the following inference to logic notation: For all x, if x_8 were an office clerk, then x_8 is playing squash. For all x, x_8 is an artist or x_8 is an office clerk. For all x, x_8 will play tennis. For all x, if x_8 were an artist, then x_8 is climbing a mountain. For all x, if x_8 climbs a mountain, then x_8 is playing squash. Therefore Thomas is playing tennis.
forall x: P(x) -> Q(x). forall x: R(x) or P(x). forall x: S(x). forall x: R(x) -> T(x). forall x: T(x) -> Q(x). Therefore S(a).