What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall y: T(y) -> W_3(y). forall y: ~W_3(y). exists y: W_3(y) -> T(y).
forall y: ~T(y). exists y: W_3(y) <-> T(y). exists y: T(y) <-> W_3(y).