Consider the following premises. For all x, x will drive a car. For all x, if x were poor, then x is not driving a car. For all x, x will not play tennis or x is a cashier. There is at least one x for which x will play tennis or x is poor. Can we infer the following from them? There is at least one x for which x is a cashier.
 From the fact that there is at least one x for which x will play tennis or x is poor, and that for all x, x will not play tennis or x is a cashier we can infer that there is at least one x for which x is poor or x is a cashier. From the fact that for all x, if x were poor, then x is not driving a car, and that for all x, x will drive a car we can infer that for all x, x is not poor. Finally, from the fact that there is at least one x for which x is poor or x is a cashier, and that for all x, x is not poor we can infer that there is at least one x for which x is a cashier. Therefore, the answer is yes.