What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall y_2: S_4(y_2) <-> Q(y_2). forall y_2: T_3(y_2) -> Q(y_2). exists y_2: T(y_2) <-> T_3(y_2). forall y_2: ~S_4(y_2).
forall y_2: S_4(y_2) -> Q(y_2). exists y_2: T(y_2) -> T_3(y_2). forall y_2: Q(y_2) -> S_4(y_2). exists y_2: T_3(y_2) -> T(y_2). forall y_2: ~Q(y_2).