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-rw-r--r--plugins/setoid_ring/newring.ml1
1 files changed, 1 insertions, 0 deletions
diff --git a/plugins/setoid_ring/newring.ml b/plugins/setoid_ring/newring.ml
index 154ec6e1b..7af72b07c 100644
--- a/plugins/setoid_ring/newring.ml
+++ b/plugins/setoid_ring/newring.ml
@@ -106,6 +106,7 @@ let protect_tac_in map id =
(****************************************************************************)
let closed_term t l =
+ let open Quote_plugin in
let l = List.map Universes.constr_of_global l in
let cs = List.fold_right Quote.ConstrSet.add l Quote.ConstrSet.empty in
if Quote.closed_under cs t then tclIDTAC else tclFAIL 0 (mt())