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: If it rains, then it is snowing. If Sarah plays a game, then it is windy. It is not snowing. If it is windy, then it is raining.
It is not raining can be inferred via the modus tollens rule. If Sarah plays a game, then it is raining can be inferred via the transitivity rule.