Translate the following inference to logic notation: For all x, x_7 will not play squash or x_7 is poor. For all x, x_7 is not an artist. For all x, x_7 will play squash. For all x, x_7 is a server if and only if x_7 is an artist. Therefore for all x, x_7 is poor.
forall x: ~P(x) or Q(x). forall x: ~R(x). forall x: P(x). forall x: S(x) <-> R(x). Therefore forall x: Q(x).