Translate the following inference to logic notation: There is at least one x for which z_1 is a server. For all x, z_1 will not take a plane. For all x, z_1 will take a plane or z_1 is excited. Therefore there is at least one x for which z_1 is a server and z_1 is excited.
exists x: P(x). forall x: ~Q(x). forall x: Q(x) or R(x). Therefore exists x: P(x) and R(x).