Consider the following premises. For all x_9, x_9 will not play tennis. For all x_9, x_9 is an artist if and only if x_9 is a bartender. For all x_9, x_9 will play tennis. Can we infer the following from them? If we can, name the inference rule being used: There is at least one x_9 for which x_9 is not an artist.
The premises are contradictory and we can infer anything from them. Therefore, the answer is yes.