Consider the following premises. For all x_10, x_10 is a scientist or x_10 is a server. For all x_10, if x_10 were a server, then x_10 is sleeping. For all x_10, if x_10 were a scientist, then x_10 is sleeping. For all x_10, x_10 will read a book. Can we infer the following from them? There is at least one x_4 for which x_4 will read a book.
 From the fact that for all x_10, if x_10 were a scientist, then x_10 is sleeping, that for all x_10, if x_10 were a server, then x_10 is sleeping, and that for all x_10, x_10 is a scientist or x_10 is a server we can infer that for all x_10, x_10 will sleep. From the fact that for all x_10, x_10 will read a book, and that for all x_10, x_10 will sleep we can infer that for all x_10, x_10 will read a book and x_10 will sleep. From the fact that for all x_10, x_10 will read a book and x_10 will sleep we can infer that for all x_10, x_10 will read a book. From the fact that for all x_10, x_10 will read a book we can infer that Karen is reading a book. Finally, from the fact that Karen is reading a book we can infer that there is at least one x_4 for which x_4 will read a book. Therefore, the answer is yes.