What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists x_5: T(x_5) -> R_1(x_5). forall x_5: R(x_5) -> Q_1(x_5). forall x_5: Q_1(x_5) -> R_1(x_5). forall x_5: R(x_5).
forall x_5: Q_1(x_5). forall x_5: R(x_5) -> R_1(x_5).