Consider the following premises. For all x_6, x_6 is a politician if and only if x_6 is excited. For all x_6, x_6 is not a politician. For all x_6, if x_6 were excited, then x_6 is reading a book. For all x_6, if x_6 were an astronaut, then x_6 is excited. For all x_6, if x_6 reads a book, then x_6 is an astronaut. Can we infer the following from them? For all x_6, x_6 is not an astronaut.
 From the fact that for all x_6, if x_6 were excited, then x_6 is reading a book, and that for all x_6, if x_6 reads a book, then x_6 is an astronaut we can infer that for all x_6, if x_6 were excited, then x_6 is an astronaut. From the fact that for all x_6, if x_6 were excited, then x_6 is an astronaut, and that for all x_6, if x_6 were an astronaut, then x_6 is excited we can infer that for all x_6, x_6 is excited if and only if x_6 is an astronaut. From the fact that for all x_6, x_6 is a politician if and only if x_6 is excited, and that for all x_6, x_6 is not a politician we can infer that for all x_6, x_6 is not excited. Finally, from the fact that for all x_6, x_6 is excited if and only if x_6 is an astronaut, and that for all x_6, x_6 is not excited we can infer that for all x_6, x_6 is not an astronaut. Therefore, the answer is yes.