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(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
open Globnames
type key
val declare_equiv_keys : key -> key -> unit
(** Declare two keys as being equivalent. *)
val equiv_keys : key -> key -> bool
(** Check equivalence of keys. *)
val constr_key : Term.constr -> key option
(** Compute the head key of a term. *)
val pr_keys : (global_reference -> Pp.std_ppcmds) -> Pp.std_ppcmds
(** Pretty-print the mapping *)
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