val max: NCic.universe -> NCic.universe -> NCic.universe
(* universe_* raise BadConstraints if the second arg. is an inferred universe *)
val universe_eq: NCic.universe -> NCic.universe -> bool
val max: NCic.universe -> NCic.universe -> NCic.universe
(* universe_* raise BadConstraints if the second arg. is an inferred universe *)
val universe_eq: NCic.universe -> NCic.universe -> bool