Consider the following premises. For all x_19, x_19 is fast or x_19 will play tennis. There is at least one x_19 for which x_19 will not read a book. For all x_19, if x_19 plays tennis, then x_19 is excited. For all x_19, x_19 will read a book or x_19 is curious. For all x_19, x_19 is excited if and only if x_19 is fast. Can we infer the following from them? For all x_19, x_19 is not excited.
 From the fact that for all x_19, x_19 is excited if and only if x_19 is fast we can infer that for all x_19, if x_19 were fast, then x_19 is excited. From the fact that for all x_19, x_19 will read a book or x_19 is curious, and that there is at least one x_19 for which x_19 will not read a book we can infer that there is at least one x_19 for which x_19 is curious. Finally, from the fact that for all x_19, if x_19 were fast, then x_19 is excited, that for all x_19, if x_19 plays tennis, then x_19 is excited, and that for all x_19, x_19 is fast or x_19 will play tennis we can infer that for all x_19, x_19 is excited, which contradicts that For all x_19, x_19 is not excited. Therefore, the answer is no.