Translate the following inference to logic notation: For all x, if x_4 reads a book, then x_4 is playing squash. For all x, x_4 will read a book or x_4 is excited. For all x, if x_4 were excited, then x_4 is playing squash. For all x, x_4 is an artist. Therefore for all x, x_4 will play squash and x_4 is an artist.
forall x: P(x) -> Q(x). forall x: P(x) or R(x). forall x: R(x) -> Q(x). forall x: S(x). Therefore forall x: Q(x) and S(x).