What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists y: T_2(y) -> R(y). forall y: S(y) <-> T_2(y). forall y: R(y) -> Q(y).
exists y: T_2(y) -> Q(y). forall y: S(y) -> T_2(y). forall y: T_2(y) -> S(y).