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: q_6 -> p_3. w_3 -> q_6. p_3 or ~u. u or w_3.
w_3 -> p_3 can be inferred via the transitivity rule. u -> p_3 can be inferred via the rewriting rule.