Consider the following premises. For all x_5, if x_5 climbs a mountain, then x_5 is excited. For all x_5, if x_5 works, then x_5 is poor. For all x_5, x_5 will work or x_5 will take a plane. There is at least one x_5 for which if x_5 takes a plane, then x_5 is excited. For all x_5, if x_5 were poor, then x_5 is climbing a mountain. Can we infer the following from them? For all x_5, x_5 is not excited.
 From the fact that for all x_5, if x_5 were poor, then x_5 is climbing a mountain, and that for all x_5, if x_5 climbs a mountain, then x_5 is excited we can infer that for all x_5, if x_5 were poor, then x_5 is excited. From the fact that for all x_5, if x_5 works, then x_5 is poor, and that for all x_5, if x_5 were poor, then x_5 is excited we can infer that for all x_5, if x_5 works, then x_5 is excited. Finally, from the fact that for all x_5, if x_5 works, then x_5 is excited, that there is at least one x_5 for which if x_5 takes a plane, then x_5 is excited, and that for all x_5, x_5 will work or x_5 will take a plane we can infer that there is at least one x_5 for which x_5 is excited, which contradicts that For all x_5, x_5 is not excited. Therefore, the answer is no.