Consider the following premises. There is at least one x_3 for which if x_3 works, then x_3 is driving a car. For all x_3, x_3 will not work. For all x_3, if x_3 drives a car, then x_3 is poor. For all x_3, if x_3 were poor, then x_3 is working. Can we infer the following from them? There is at least one x_3 for which x_3 is not poor.
 From the fact that there is at least one x_3 for which if x_3 works, then x_3 is driving a car, and that for all x_3, if x_3 drives a car, then x_3 is poor we can infer that there is at least one x_3 for which if x_3 works, then x_3 is poor. From the fact that there is at least one x_3 for which if x_3 works, then x_3 is poor, and that for all x_3, if x_3 were poor, then x_3 is working we can infer that there is at least one x_3 for which x_3 will work if and only if x_3 is poor. Finally, from the fact that there is at least one x_3 for which x_3 will work if and only if x_3 is poor, and that for all x_3, x_3 will not work we can infer that there is at least one x_3 for which x_3 is not poor. Therefore, the answer is yes.