Consider the following premises. There is at least one x for which x is not a carpenter. For all x, x is a carpenter if and only if x will drive a car. For all x, if x makes tea, then x is a carpenter. For all x, if x drives a car, then x is making tea. Can we infer the following from them? For all x, x will drive a car.
 From the fact that for all x, x is a carpenter if and only if x will drive a car we can infer that for all x, if x were a carpenter, then x is driving a car. From the fact that for all x, if x drives a car, then x is making tea, and that for all x, if x makes tea, then x is a carpenter we can infer that for all x, if x drives a car, then x is a carpenter. From the fact that for all x, if x drives a car, then x is a carpenter, and that for all x, if x were a carpenter, then x is driving a car we can infer that for all x, x will drive a car if and only if x is a carpenter. Finally, from the fact that for all x, x will drive a car if and only if x is a carpenter, and that there is at least one x for which x is not a carpenter we can infer that there is at least one x for which x will not drive a car, which contradicts that For all x, x will drive a car. Therefore, the answer is no.