X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fcomponents%2Fng_kernel%2FnUri.mli;h=e3ad120f31d9288b95e2826d2553ab1131d114f3;hb=243d091f23f8338e155cdde14969a6043b8c89af;hp=25d319eb4767f8bcaeefcf7e5b80608217ca72e3;hpb=7cdb8e166b4f74dc6ddd39c7ca332e618b2bd960;p=helm.git

diff --git a/matita/components/ng_kernel/nUri.mli b/matita/components/ng_kernel/nUri.mli
index 25d319eb4..e3ad120f3 100644
--- a/matita/components/ng_kernel/nUri.mli
+++ b/matita/components/ng_kernel/nUri.mli
@@ -23,3 +23,4 @@ val hash: uri -> int
 
 module UriHash: Hashtbl.S with type key = uri
 module UriMap: Map.S with type key = uri
+module UriSet: Set.S with type elt = uri