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-rw-r--r--pretyping/pretyping.ml4
1 files changed, 1 insertions, 3 deletions
diff --git a/pretyping/pretyping.ml b/pretyping/pretyping.ml
index 3b9a8e6a1d..a315376aca 100644
--- a/pretyping/pretyping.ml
+++ b/pretyping/pretyping.ml
@@ -68,9 +68,7 @@ type t = {
}
let get_extra env sigma =
- let open Context.Named.Declaration in
- let ids = List.map get_id (named_context env) in
- let avoid = List.fold_right Id.Set.add ids Id.Set.empty in
+ let avoid = Environ.ids_of_named_context_val (Environ.named_context_val env) in
Context.Rel.fold_outside (fun d acc -> push_rel_decl_to_named_context sigma d acc)
(rel_context env) ~init:(empty_csubst, avoid, named_context env)