Translate the following inference to logic notation: For all x, if x_7 were a carpenter, then x_7 is drinking water. For all x, x_7 is a poet. For all x, x_7 is a carpenter or x_7 will make tea. For all x, x_7 will make tea if and only if x_7 will drink water. Therefore for all x, x_7 is a poet and x_7 will drink water.
forall x: P(x) -> Q(x). forall x: R(x). forall x: P(x) or S(x). forall x: S(x) <-> Q(x). Therefore forall x: R(x) and Q(x).