Consider the following premises. For all x_8, x_8 is a server or x_8 is a carpenter. There is at least one x_8 for which if x_8 were a cashier, then x_8 is an electrician. For all x_8, if x_8 were a carpenter, then x_8 is a cashier. For all x_8, x_8 is a server if and only if x_8 is an electrician. Can we infer the following from them? There is at least one x_8 for which x_8 is an electrician.
 From the fact that for all x_8, x_8 is a server if and only if x_8 is an electrician we can infer that for all x_8, if x_8 were a server, then x_8 is an electrician. From the fact that for all x_8, if x_8 were a carpenter, then x_8 is a cashier, and that there is at least one x_8 for which if x_8 were a cashier, then x_8 is an electrician we can infer that there is at least one x_8 for which if x_8 were a carpenter, then x_8 is an electrician. Finally, from the fact that for all x_8, if x_8 were a server, then x_8 is an electrician, that there is at least one x_8 for which if x_8 were a carpenter, then x_8 is an electrician, and that for all x_8, x_8 is a server or x_8 is a carpenter we can infer that there is at least one x_8 for which x_8 is an electrician. Therefore, the answer is yes.