Consider the following premises. For all x_10, x_10 will not play squash or x_10 is sad. For all x_10, x_10 is a nurse or x_10 is not sad. For all x_10, x_10 will play squash or x_10 will drive a car. For all x_10, if x_10 drives a car, then x_10 is a nurse. Can we infer the following from them? There is at least one x_10 for which neither x_10 is a nurse nor x_10 is excited.
 From the fact that for all x_10, x_10 will play squash or x_10 will drive a car, and that for all x_10, x_10 will not play squash or x_10 is sad we can infer that for all x_10, x_10 will drive a car or x_10 is sad. From the fact that for all x_10, x_10 is a nurse or x_10 is not sad we can infer that for all x_10, if x_10 were sad, then x_10 is a nurse. From the fact that for all x_10, if x_10 drives a car, then x_10 is a nurse, that for all x_10, if x_10 were sad, then x_10 is a nurse, and that for all x_10, x_10 will drive a car or x_10 is sad we can infer that for all x_10, x_10 is a nurse. Finally, from the fact that for all x_10, x_10 is a nurse we can infer that for all x_10, x_10 is a nurse or x_10 is excited, which contradicts that There is at least one x_10 for which neither x_10 is a nurse nor x_10 is excited. Therefore, the answer is no.