Consider the following premises. For all x_5, x_5 will not read a book. For all x_5, if x_5 climbs a mountain, then x_5 is excited. For all x_5, if x_5 were excited, then x_5 is reading a book. For all x_5, if x_5 were excited, then x_5 is climbing a mountain. Can we infer the following from them? For all x_5, x_5 will not climb a mountain.
 From the fact that for all x_5, if x_5 climbs a mountain, then x_5 is excited, and that for all x_5, if x_5 were excited, then x_5 is climbing a mountain we can infer that for all x_5, x_5 will climb a mountain if and only if x_5 is excited. From the fact that for all x_5, if x_5 were excited, then x_5 is reading a book, and that for all x_5, x_5 will not read a book we can infer that for all x_5, x_5 is not excited. Finally, from the fact that for all x_5, x_5 will climb a mountain if and only if x_5 is excited, and that for all x_5, x_5 is not excited we can infer that for all x_5, x_5 will not climb a mountain. Therefore, the answer is yes.