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_4: W_3(x_4) -> U_2(x_4). forall x_4: T(x_4). forall x_4: T(x_4) -> U_2(x_4). U_2(g) -> q_4.
forall x_4: U_2(x_4) can be inferred via the universal modus ponens rule.