Consider the following premises. For all x_7, x_7 is a poet if and only if x_7 will drink water. For all x_7, if x_7 were a carpenter, then x_7 is drinking water. For all x_7, x_7 is not a poet. For all x_7, if x_7 drives a car, then x_7 is a carpenter. Can we infer the following from them? For all x_7, x_7 will not drive a car.
 From the fact that for all x_7, x_7 is a poet if and only if x_7 will drink water, and that for all x_7, x_7 is not a poet we can infer that for all x_7, x_7 will not drink water. From the fact that for all x_7, if x_7 drives a car, then x_7 is a carpenter, and that for all x_7, if x_7 were a carpenter, then x_7 is drinking water we can infer that for all x_7, if x_7 drives a car, then x_7 is drinking water. Finally, from the fact that for all x_7, if x_7 drives a car, then x_7 is drinking water, and that for all x_7, x_7 will not drink water we can infer that for all x_7, x_7 will not drive a car. Therefore, the answer is yes.