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: John is working. Linda is not listening to a song. For all x_14, if x_14 were fast, then x_14 is listening to a song.
John is working and Linda is not listening to a song can be inferred via the conjunction rule. Linda is not listening to a song and John is working can be inferred via the conjunction rule.