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_3 -> r_13. r_13 -> r. q_8 -> r. q -> q_8. r -> p_3.
p_3 -> r can be inferred via the transitivity rule. r_13 -> p_3 can be inferred via the transitivity rule. q_8 -> p_3 can be inferred via the transitivity rule. q -> r can be inferred via the transitivity rule. r -> r_13 can be inferred via the transitivity rule.