Translate the following inference to logic notation: For all x, x_16 will cook or x_16 is not a police officer. For all x, x_16 will cook if and only if x_16 will drink water. William is a police officer. Therefore William is drinking water.
forall x: P(x) or ~Q(x). forall x: P(x) <-> R(x). Q(a). Therefore R(a).