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_4. w_4 -> q_6. q_6 -> q_1. q_1 -> p.
q_6 can be inferred via the modus ponens rule. w_4 -> q_1 can be inferred via the transitivity rule. q_6 -> p can be inferred via the transitivity rule.