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+(************************************************************************)
+(* v * The Coq Proof Assistant / The Coq Development Team *)
+(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
+(* \VV/ **************************************************************)
+(* // * This file is distributed under the terms of the *)
+(* * GNU Lesser General Public License Version 2.1 *)
+(************************************************************************)
+
+(* $Id: conv_oracle.mli,v 1.3.8.2 2004/07/16 19:30:24 herbelin Exp $ *)
+
+open Names
+open Closure
+
+(* Order on section paths for unfolding.
+ If [oracle_order kn1 kn2] is true, then unfold kn1 first.
+ Note: the oracle does not introduce incompleteness, it only
+ tries to postpone unfolding of "opaque" constants. *)
+val oracle_order : table_key -> table_key -> bool
+
+(* Changing the oracle *)
+val set_opaque_const : constant -> unit
+val set_transparent_const : constant -> unit
+
+val set_opaque_var : identifier -> unit
+val set_transparent_var : identifier -> unit
+
+val is_opaque_cst : constant -> bool
+val is_opaque_var : identifier -> bool
+
+(*****************************)
+
+(* transparent state summary operations *)
+val init : unit -> unit
+val freeze : unit -> transparent_state
+val unfreeze : transparent_state -> unit