Consider the following premises. For all x_10, if x_10 were rich, then x_10 is climbing a mountain. For all x_10, x_10 will climb a mountain if and only if x_10 is a server. There is at least one x_10 for which if x_10 climbs a mountain, then x_10 is rich. For all x_10, x_10 is not rich. Can we infer the following from them? There is at least one x_10 for which x_10 is not a server.
 From the fact that for all x_10, if x_10 were rich, then x_10 is climbing a mountain, and that there is at least one x_10 for which if x_10 climbs a mountain, then x_10 is rich we can infer that there is at least one x_10 for which x_10 is rich if and only if x_10 will climb a mountain. From the fact that there is at least one x_10 for which x_10 is rich if and only if x_10 will climb a mountain, and that for all x_10, x_10 is not rich we can infer that there is at least one x_10 for which x_10 will not climb a mountain. Finally, from the fact that for all x_10, x_10 will climb a mountain if and only if x_10 is a server, and that there is at least one x_10 for which x_10 will not climb a mountain we can infer that there is at least one x_10 for which x_10 is not a server. Therefore, the answer is yes.