What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_9, x_9 is not a mechanic. For all x_9, x_9 will play a game and x_9 is a writer. For all x_9, x_9 is a mechanic.
Since the premises are contradictory, we can infer anything from them.