Consider the following premises. For all x_5, if x_5 climbs a mountain, then x_5 is sleeping. For all x_5, x_5 will climb a mountain. There is at least one x_5 for which if x_5 drives a car, then x_5 is playing squash. For all x_5, if x_5 sleeps, then x_5 is driving a car. Can we infer the following from them? There is at least one x_5 for which x_5 will play squash.
 From the fact that for all x_5, if x_5 climbs a mountain, then x_5 is sleeping, and that for all x_5, x_5 will climb a mountain we can infer that for all x_5, x_5 will sleep. From the fact that for all x_5, if x_5 sleeps, then x_5 is driving a car, and that for all x_5, x_5 will sleep we can infer that for all x_5, x_5 will drive a car. Finally, from the fact that there is at least one x_5 for which if x_5 drives a car, then x_5 is playing squash, and that for all x_5, x_5 will drive a car we can infer that there is at least one x_5 for which x_5 will play squash. Therefore, the answer is yes.