X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fcomponents%2Fng_library%2FnCicLibrary.ml;h=0620a6233dcdff5279e11b31e5b3762ad873ce68;hb=d51f9674886d1e609a6ea792b65871dcde4f6503;hp=3117a12ad387d8458711ab9c50cf9b32271fac4c;hpb=e9f96fa56226dfd74de214c89d827de0c5018ac7;p=helm.git

diff --git a/matita/components/ng_library/nCicLibrary.ml b/matita/components/ng_library/nCicLibrary.ml
index 3117a12ad..0620a6233 100644
--- a/matita/components/ng_library/nCicLibrary.ml
+++ b/matita/components/ng_library/nCicLibrary.ml
@@ -372,7 +372,7 @@ let add_obj status ((u,_,_,_,_) as orig_obj) =
   status#set_timestamp (!storage,!local_aliases)
 ;;
 
-let add_constraint status u1 u2 = 
+let add_constraint status ~acyclic u1 u2 = 
   if
    List.exists
     (function `Constr (u1',u2') when u1=u1' && u2=u2' -> true | _ -> false)
@@ -380,7 +380,7 @@ let add_constraint status u1 u2 =
   then
    (*CSC: raise an exception here! *)
    (prerr_endline "CANNOT ADD A CONSTRAINT TWICE"; assert false);
-  NCicEnvironment.add_lt_constraint u1 u2;
+  NCicEnvironment.add_lt_constraint ~acyclic u1 u2;
   storage := (`Constr (u1,u2)) :: !storage;
   status#set_timestamp (!storage,!local_aliases)
 ;;