Translate the following inference to logic notation: For all x, if x makes tea, then x is poor. For all x, if x plays squash, then x is making tea. For all x, x is an artist if and only if x is poor. For all x, x is an artist or x will play squash. Therefore for all x, x is poor.
forall x: P(x) -> Q(x). forall x: R(x) -> P(x). forall x: S(x) <-> Q(x). forall x: S(x) or R(x). Therefore forall x: Q(x).