Consider the following premises. For all x_10, if x_10 plays tennis, then x_10 is a police officer. For all x_10, if x_10 were a police officer, then x_10 is a server. For all x_10, x_10 will play tennis or x_10 is a bartender. There is at least one x_10 for which if x_10 were a bartender, then x_10 is a server. Can we infer the following from them? There is at least one x_10 for which x_10 is a server or x_10 will climb a mountain.
 From the fact that for all x_10, if x_10 plays tennis, then x_10 is a police officer, and that for all x_10, if x_10 were a police officer, then x_10 is a server we can infer that for all x_10, if x_10 plays tennis, then x_10 is a server. From the fact that for all x_10, if x_10 plays tennis, then x_10 is a server, that there is at least one x_10 for which if x_10 were a bartender, then x_10 is a server, and that for all x_10, x_10 will play tennis or x_10 is a bartender we can infer that there is at least one x_10 for which x_10 is a server. Finally, from the fact that there is at least one x_10 for which x_10 is a server we can infer that there is at least one x_10 for which x_10 is a server or x_10 will climb a mountain. Therefore, the answer is yes.