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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 Term
+open Univ
+open Declarations
+
+(** Shrink a universe context to a restricted set of variables *)
+
+val universes_of_constr : constr -> universe_set
+val universes_of_inductive : mutual_inductive_body -> universe_set
+val restrict_universe_context : universe_context_set -> universe_set -> universe_context_set