X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fcic%2FlibraryObjects.mli;h=7c31bf2bf79a651ddd6ee06d5449abb6e27ad37b;hb=abd976fb6603a85c1da6d1582114e7c1fa472449;hp=1fa0dcc83b6bfc363e016a1212e228a012e48806;hpb=5c19fc553c94e2b96e8e2a22a97a58a4f1d6b152;p=helm.git

diff --git a/helm/software/components/cic/libraryObjects.mli b/helm/software/components/cic/libraryObjects.mli
index 1fa0dcc83..7c31bf2bf 100644
--- a/helm/software/components/cic/libraryObjects.mli
+++ b/helm/software/components/cic/libraryObjects.mli
@@ -26,7 +26,7 @@
 val set_default : string -> UriManager.uri list -> unit
 val reset_defaults : unit -> unit 
 
-val eq_URI : unit -> UriManager.uri
+val eq_URI : unit -> UriManager.uri option
 
 val is_eq_URI : UriManager.uri -> bool
 val is_eq_ind_URI : UriManager.uri -> bool
@@ -42,7 +42,7 @@ val trans_eq_URI : eq:UriManager.uri -> UriManager.uri
 val sym_eq_URI : eq:UriManager.uri -> UriManager.uri
 
 
-val false_URI : unit -> UriManager.uri
-val true_URI : unit -> UriManager.uri
-val absurd_URI : unit -> UriManager.uri
+val false_URI : unit -> UriManager.uri option
+val true_URI : unit -> UriManager.uri option
+val absurd_URI : unit -> UriManager.uri option