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: forall x_17: R_17(x_17) -> S_17(x_17). ~S_17(d). S_17(d) -> R_17(d). s_3 -> R_17(d). u_2 -> s_3.
u_2 -> R_17(d) can be inferred via the transitivity rule.