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-rw-r--r--vernac/himsg.ml5
1 files changed, 3 insertions, 2 deletions
diff --git a/vernac/himsg.ml b/vernac/himsg.ml
index 50febdf448..ca77e03707 100644
--- a/vernac/himsg.ml
+++ b/vernac/himsg.ml
@@ -773,12 +773,13 @@ let pr_constraints printenv env sigma evars cstrs =
let explain_unsatisfiable_constraints env sigma constr comp =
let (_, constraints) = Evd.extract_all_conv_pbs sigma in
+ let tcs = Evd.get_typeclass_evars sigma in
let undef = Evd.undefined_map sigma in
(** Only keep evars that are subject to resolution and members of the given
component. *)
let is_kept evk _ = match comp with
- | None -> Evd.is_resolvable_evar sigma evk
- | Some comp -> Evd.is_resolvable_evar sigma evk && Evar.Set.mem evk comp
+ | None -> Evar.Set.mem evk tcs
+ | Some comp -> Evar.Set.mem evk tcs && Evar.Set.mem evk comp
in
let undef =
let m = Evar.Map.filter is_kept undef in