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: Michael is not playing squash. It is raining or it is late. If it is late, then Michael is playing squash.
It is not late can be inferred via the modus tollens rule. If it is not late, then it is raining can be inferred via the rewriting rule.