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 y: U_1(y) -> S(y). forall y: Q(y) or ~S(y). forall y: Q(y) -> U_1(y).
forall y: Q(y) -> S(y) can be inferred via the universal transitivity rule. forall y: S(y) -> Q(y) can be inferred via the universal rewriting rule.