--- /dev/null
+(*
+ ||M|| This file is part of HELM, an Hypertextual, Electronic
+ ||A|| Library of Mathematics, developed at the Computer Science
+ ||T|| Department, University of Bologna, Italy.
+ ||I||
+ ||T|| HELM is free software; you can redistribute it and/or
+ ||A|| modify it under the terms of the GNU General Public License
+ \ / version 2 or (at your option) any later version.
+ \ / This software is distributed as is, NO WARRANTY.
+ V_______________________________________________________________ *)
+
+(* $Id$ *)
+
+exception IllFormedReference of string Lazy.t
+
+type spec =
+ | Decl
+ | Def
+ | Fix of int * int (* fixno, recparamno *)
+ | CoFix of int
+ | Ind of int
+ | Con of int * int (* indtyno, constrno *)
+
+type reference = private Ref of int * NUri.uri * spec
+
+val eq: reference -> reference -> bool
+val string_of_reference: reference -> string
+
+(* given the reference of an inductive type, returns the i-th contructor *)
+val mk_constructor: int -> reference -> reference
+val mk_fix: int -> int -> reference -> reference
+
+
+(* CACCA *)
+val reference_of_ouri: UriManager.uri -> spec -> reference
+val ouri_of_reference: reference -> UriManager.uri