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: ~T_3(a_17). w -> P(a_17). forall z: P(z) -> T_3(z). r_2 -> w. T_3(a_17) -> P(a_17).
r_2 -> P(a_17) can be inferred via the transitivity rule.