Consider the following premises. For all x_7, if x_7 were curious, then x_7 is a server. For all x_7, x_7 is not a server. There is at least one x_7 for which x_7 will not play tennis or x_7 will climb a mountain. For all x_7, x_7 will play tennis or x_7 is curious. Can we infer the following from them? There is at least one x_7 for which x_7 will climb a mountain.
 From the fact that for all x_7, x_7 will play tennis or x_7 is curious, and that there is at least one x_7 for which x_7 will not play tennis or x_7 will climb a mountain we can infer that there is at least one x_7 for which x_7 is curious or x_7 will climb a mountain. From the fact that for all x_7, if x_7 were curious, then x_7 is a server, and that for all x_7, x_7 is not a server we can infer that for all x_7, x_7 is not curious. Finally, from the fact that there is at least one x_7 for which x_7 is curious or x_7 will climb a mountain, and that for all x_7, x_7 is not curious we can infer that there is at least one x_7 for which x_7 will climb a mountain. Therefore, the answer is yes.