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-rw-r--r--pretyping/evd.ml2
1 files changed, 2 insertions, 0 deletions
diff --git a/pretyping/evd.ml b/pretyping/evd.ml
index ab595be25b..d36a6a20fb 100644
--- a/pretyping/evd.ml
+++ b/pretyping/evd.ml
@@ -655,6 +655,8 @@ let to_list d =
let undefined_map d = d.undf_evars
+let drop_all_defined d = { d with defn_evars = EvMap.empty }
+
(* spiwack: not clear what folding over an evar_map, for now we shall
simply fold over the inner evar_map. *)
let fold f d a =