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: p_7 or w. t -> u_1. w_4 -> u_1. ~p_7 or w_4. w -> t.
w -> u_1 can be inferred via the transitivity rule. w or w_4 can be inferred via the resolution rule.