Translate the following inference to logic notation: For all x, z is not an artist. There is at least one x for which if z were a sailor, then z is an artist. For all x, z is a sailor or z is not an electrician. Therefore there is at least one x for which z is not an electrician.
forall x: ~P(x). exists x: Q(x) -> P(x). forall x: Q(x) or ~R(x). Therefore exists x: ~R(x).