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+(************************************************************************)
+(* * The Coq Proof Assistant / The Coq Development Team *)
+(* v * Copyright INRIA, CNRS and contributors *)
+(* <O___,, * (see version control and CREDITS file for authors & dates) *)
+(* \VV/ **************************************************************)
+(* // * This file is distributed under the terms of the *)
+(* * GNU Lesser General Public License Version 2.1 *)
+(* * (see LICENSE file for the text of the license) *)
+(************************************************************************)
+
+(** We can take advantage of non-cumulativity of SProp to avoid fully
+ retyping terms when we just want to know if they inhabit some
+ proof-irrelevant type. *)
+
+val relevance_of_term : Environ.env -> Constr.constr -> Sorts.relevance
+
+val relevance_of_fterm : Environ.env -> Sorts.relevance Range.t ->
+ Esubst.lift -> CClosure.fconstr ->
+ Sorts.relevance
+
+
+(** Helpers *)
+open Names
+val relevance_of_rel : Environ.env -> int -> Sorts.relevance
+val relevance_of_var : Environ.env -> Id.t -> Sorts.relevance
+val relevance_of_constant : Environ.env -> Constant.t -> Sorts.relevance
+val relevance_of_constructor : Environ.env -> constructor -> Sorts.relevance
+val relevance_of_projection : Environ.env -> Projection.t -> Sorts.relevance