Consider the following premises. For all x_8, x_8 is a sailor if and only if x_8 is poor. For all x_8, x_8 is not a sailor. For all x_8, x_8 is poor or x_8 is a police officer. Can we infer the following from them? For all x_8, x_8 is a police officer.
 From the fact that for all x_8, x_8 is a sailor if and only if x_8 is poor we can infer that for all x_8, if x_8 were poor, then x_8 is a sailor. From the fact that for all x_8, if x_8 were poor, then x_8 is a sailor, and that for all x_8, x_8 is not a sailor we can infer that for all x_8, x_8 is not poor. Finally, from the fact that for all x_8, x_8 is poor or x_8 is a police officer, and that for all x_8, x_8 is not poor we can infer that for all x_8, x_8 is a police officer. Therefore, the answer is yes.