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 Jessica makes tea, then Elisabeth is cooking. For all x_12, if x_12 cooks, then x_12 is playing a game. Elisabeth is not playing a game. If Elisabeth plays a game, then Jessica is making tea.
If Elisabeth plays a game, then Elisabeth is cooking can be inferred via the transitivity rule.