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. t -> q_2. q_2 -> w. ~w.
~q_2 can be inferred via the modus tollens rule. t -> w can be inferred via the transitivity rule. p and ~w can be inferred via the conjunction rule. ~w and p can be inferred via the conjunction rule.