What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: There is at least one x_12 for which x_12 will not play tennis. For all x_12, if x_12 were bored, then x_12 is playing tennis. For all x_12, x_12 is bored.
Since the premises are contradictory, we can infer anything from them.