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: W(y) -> R_1(y). forall y: T(y) or ~R_1(y). forall y: S(y) -> W(y). exists y: T(y) -> S(y).
forall y: S(y) -> R_1(y) can be inferred via the universal transitivity rule. exists y: T(y) -> W(y) can be inferred via the existential transitivity rule. forall y: R_1(y) -> T(y) can be inferred via the universal rewriting rule.