Translate the following inference to logic notation: For all x, if x_10 were a sailor, then x_10 is playing a game. For all x, x_10 is not excited. For all x, if x_10 plays a game, then x_10 is excited. Richard is a sailor or Mary is climbing a mountain. Therefore Mary is climbing a mountain.
forall x: P(x) -> Q(x). forall x: ~R(x). forall x: Q(x) -> R(x). P(a) or p. Therefore p.