Consider the following premises. For all x_6, if x_6 were an electrician, then x_6 is rich. There is at least one x_6 for which if x_6 were rich, then x_6 is an electrician. For all x_6, x_6 is fast or x_6 is an electrician. For all x_6, if x_6 were fast, then x_6 is rich. Can we infer the following from them? For all x_6, x_6 is not rich.
 From the fact that there is at least one x_6 for which if x_6 were rich, then x_6 is an electrician, and that for all x_6, if x_6 were an electrician, then x_6 is rich we can infer that there is at least one x_6 for which x_6 is rich if and only if x_6 is an electrician. From the fact that there is at least one x_6 for which x_6 is rich if and only if x_6 is an electrician we can infer that there is at least one x_6 for which if x_6 were an electrician, then x_6 is rich. Finally, from the fact that for all x_6, if x_6 were fast, then x_6 is rich, that there is at least one x_6 for which if x_6 were an electrician, then x_6 is rich, and that for all x_6, x_6 is fast or x_6 is an electrician we can infer that there is at least one x_6 for which x_6 is rich, which contradicts that For all x_6, x_6 is not rich. Therefore, the answer is no.