Consider the following premises. For all x_5, if x_5 plays tennis, then x_5 is reading a book. For all x_5, if x_5 climbs a mountain, then x_5 is reading a book. For all x_5, x_5 will climb a mountain. For all x_5, x_5 will play squash. Can we infer the following from them? There is at least one x_5 for which either x_5 will read a book or x_5 will play squash are not true.
 From the fact that for all x_5, x_5 will climb a mountain we can infer that for all x_5, x_5 will climb a mountain or x_5 will play tennis. From the fact that for all x_5, if x_5 climbs a mountain, then x_5 is reading a book, that for all x_5, if x_5 plays tennis, then x_5 is reading a book, and that for all x_5, x_5 will climb a mountain or x_5 will play tennis we can infer that for all x_5, x_5 will read a book. Finally, from the fact that for all x_5, x_5 will read a book, and that for all x_5, x_5 will play squash we can infer that for all x_5, x_5 will read a book and x_5 will play squash, which contradicts that There is at least one x_5 for which either x_5 will read a book or x_5 will play squash are not true. Therefore, the answer is no.