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 Jennifer listens to a song, then Robert is making tea. It is snowing. If it snows, then James is cooking. Jennifer is listening to a song.
Robert is making tea can be inferred via the modus ponens rule. James is cooking can be inferred via the modus ponens rule. It is snowing and Jennifer is listening to a song can be inferred via the conjunction rule. Jennifer is listening to a song and it is snowing can be inferred via the conjunction rule.