Consider the following premises. There is at least one x_4 for which if x_4 were a musician, then x_4 is a soldier. For all x_4, if x_4 were a soldier, then x_4 is poor. For all x_4, if x_4 were poor, then x_4 is a musician. For all x_4, x_4 is not a soldier. Can we infer the following from them? For all x_4, x_4 is poor.
 From the fact that for all x_4, if x_4 were poor, then x_4 is a musician, and that there is at least one x_4 for which if x_4 were a musician, then x_4 is a soldier we can infer that there is at least one x_4 for which if x_4 were poor, then x_4 is a soldier. From the fact that there is at least one x_4 for which if x_4 were poor, then x_4 is a soldier, and that for all x_4, if x_4 were a soldier, then x_4 is poor we can infer that there is at least one x_4 for which x_4 is poor if and only if x_4 is a soldier. Finally, from the fact that there is at least one x_4 for which x_4 is poor if and only if x_4 is a soldier, and that for all x_4, x_4 is not a soldier we can infer that there is at least one x_4 for which x_4 is not poor, which contradicts that For all x_4, x_4 is poor. Therefore, the answer is no.