Translate the following inference to logic notation: For all x, if x_5 plays squash, then x_5 is a bartender. For all x, x_5 is bored or x_5 will play squash. For all x, if x_5 were bored, then x_5 is a bartender. For all x, if x_5 were a bartender, then x_5 is playing squash. Therefore for all x, x_5 is a bartender.
forall x: P(x) -> Q(x). forall x: R(x) or P(x). forall x: R(x) -> Q(x). forall x: Q(x) -> P(x). Therefore forall x: Q(x).