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: It is not cloudy. It is sunny or Michael is an office clerk. If Susan plays tennis, then it is cloudy. Michael is not an office clerk or James is listening to a song. It is not sunny or Susan is playing tennis.
Susan is not playing tennis can be inferred via the modus tollens rule. Michael is an office clerk or Susan is playing tennis can be inferred via the resolution rule.