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_1 -> P(g_1). forall y_4: P(y_4) -> U_2(y_4). U_2(g_1) -> q_1.
U_2(g_1) -> P(g_1) can be inferred via the transitivity rule.