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: Elisabeth is not excited. James is playing a game. If Linda were a poet, then Elisabeth is excited.
Linda is not a poet can be inferred via the modus tollens rule. Elisabeth is not excited and James is playing a game can be inferred via the conjunction rule. James is playing a game and Elisabeth is not excited can be inferred via the conjunction rule.