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 Patricia works, then Michael is a politician. It is not sunny. If Michael were a politician, then Jessica is playing a game. If Jessica plays a game, then it is sunny.
Jessica is not playing a game can be inferred via the modus tollens rule. If Patricia works, then Jessica is playing a game can be inferred via the transitivity rule. If Michael were a politician, then it is sunny can be inferred via the transitivity rule.