Consider the following premises. For all x_5, x_5 is a bartender. For all x_5, x_5 is not sad or x_5 is a lawyer. For all x_5, x_5 is not a bartender or x_5 is sad. For all x_5, x_5 will not take a plane or x_5 is poor. Can we infer the following from them? If we can, name the inference rule being used: For all x_5, x_5 is a bartender.
That is one of the premises. Therefore, the answer is yes.