X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fng_kernel%2FnCicEnvironment.mli;h=4604bd2fdf2fe4a49537862fe88fc3f53f2ebf9b;hb=14e2489ae86ecb6467fe9a7ba3b742a8d53c47ea;hp=029cd94d18818a0c3520f0ce0f2360f6829b56ae;hpb=4d765cc85e3a1e84c80c348a1e67ea1eed984916;p=helm.git

diff --git a/helm/software/components/ng_kernel/nCicEnvironment.mli b/helm/software/components/ng_kernel/nCicEnvironment.mli
index 029cd94d1..4604bd2fd 100644
--- a/helm/software/components/ng_kernel/nCicEnvironment.mli
+++ b/helm/software/components/ng_kernel/nCicEnvironment.mli
@@ -13,7 +13,7 @@
 
 exception CircularDependency of string Lazy.t;;
 exception ObjectNotFound of string Lazy.t;;
-exception BadDependency of string Lazy.t;;
+exception BadDependency of string Lazy.t * exn;;
 exception BadConstraint of string Lazy.t;;
 
 val get_checked_obj: NUri.uri -> NCic.obj
@@ -21,6 +21,7 @@ val get_checked_obj: NUri.uri -> NCic.obj
 val get_relevance: NReference.reference -> bool list
 
 val type0: NCic.universe
+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 universe_leq: NCic.universe -> NCic.universe -> bool
@@ -29,6 +30,7 @@ val universe_leq: NCic.universe -> NCic.universe -> bool
    true -> strict check (<); false -> loose check (<=)
 *)
 val add_constraint: bool -> NCic.universe -> NCic.universe -> unit
+val sup : NCic.universe -> NCic.universe option
 val pp_constraints: unit -> string
 
 val get_checked_def: