Translate the following inference to logic notation: For all x, if z were a server, then z is an electrician. For all x, if z were an electrician, then z is a server. For all x, if z were an electrician, then z is a server. Karen is not a server. Therefore Karen is not an electrician.
forall x: P(x) -> Q(x). forall x: Q(x) -> P(x). forall x: Q(x) -> P(x). ~P(a). Therefore ~Q(a).