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_7: P_7(x_7). forall x_7: P_7(x_7) -> T_4(x_7). forall x: T_4(x) -> S(x).
forall x_7: T_4(x_7) can be inferred via the universal modus ponens rule.