Consider the following premises. For all x_5, if x_5 were a bartender, then x_5 is a server. There is at least one x_5 for which if x_5 goes running, then x_5 is a server. For all x_5, if x_5 were a server, then x_5 is a bartender. Can we infer the following from them? If we can, name the inference rule being used: For all x_5, the fact that x_5 goes running does not imply that x_5 is a bartender.
That contradicts the premises. Therefore the answer is no.