Consider the following premises. For all x_11, x_11 is not bored. There is at least one x_11 for which x_11 will make tea or x_11 is bored. For all x_11, x_11 will not make tea or x_11 will play tennis. For all x_11, x_11 will climb a mountain. Can we infer the following from them? There is at least one x_11 for which x_11 will play tennis and x_11 will climb a mountain.
 From the fact that there is at least one x_11 for which x_11 will make tea or x_11 is bored, and that for all x_11, x_11 will not make tea or x_11 will play tennis we can infer that there is at least one x_11 for which x_11 is bored or x_11 will play tennis. From the fact that there is at least one x_11 for which x_11 is bored or x_11 will play tennis, and that for all x_11, x_11 is not bored we can infer that there is at least one x_11 for which x_11 will play tennis. Finally, from the fact that there is at least one x_11 for which x_11 will play tennis, and that for all x_11, x_11 will climb a mountain we can infer that there is at least one x_11 for which x_11 will play tennis and x_11 will climb a mountain. Therefore, the answer is yes.