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: w_2 -> ~u_2. u_2. w -> w_2. p -> w.
~w_2 can be inferred via the modus tollens rule. w -> ~u_2 can be inferred via the transitivity rule. p -> w_2 can be inferred via the transitivity rule.