Translate the following inference to logic notation: For all x, x_17 will play squash if and only if x_17 is an electrician. There is at least one x for which x_17 is not an electrician. For all x, x_17 will play squash or x_17 is a musician. Therefore there is at least one x for which x_17 is a musician or x_17 is a sailor.
forall x: P(x) <-> Q(x). exists x: ~Q(x). forall x: P(x) or R(x). Therefore exists x: R(x) or S(x).