Consider the following premises. There is at least one y for which y is a musician or y will not play tennis. For all y, y is not a musician. Can we infer the following from them? For all y, y will play tennis.
 From the fact that there is at least one y for which y is a musician or y will not play tennis we can infer that there is at least one y for which if y plays tennis, then y is a musician. Finally, from the fact that there is at least one y for which if y plays tennis, then y is a musician, and that for all y, y is not a musician we can infer that there is at least one y for which y will not play tennis, which contradicts that For all y, y will play tennis. Therefore, the answer is no.