What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists z: ~T(z). forall z: S(z) -> T(z). forall z: T(z) -> P(z). forall z: P(z) -> S(z).
exists z: ~S(z). forall z: S(z) -> P(z). forall z: T(z) -> S(z). forall z: P(z) -> T(z).