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-rw-r--r--kernel/indtypes.ml5
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/indtypes.ml b/kernel/indtypes.ml
index 759d71206..2e9a81d98 100644
--- a/kernel/indtypes.ml
+++ b/kernel/indtypes.ml
@@ -781,16 +781,17 @@ let build_inductive env p prv ctx env_ar params kn isrecord isfinite inds nmr re
match isrecord with
| Some true when pkt.mind_kelim == all_sorts && Array.length pkt.mind_consnames == 1 ->
(** The elimination criterion ensures that all projections can be defined. *)
- let rctx, _ = decompose_prod_assum pkt.mind_nf_lc.(0) in
let u =
if p then
subst_univs_level_instance subst (Univ.UContext.instance ctx)
else Univ.Instance.empty
in
+ let indsp = ((kn, 0), u) in
+ let rctx, _ = decompose_prod_assum (subst1 (mkIndU indsp) pkt.mind_nf_lc.(0)) in
(try
let fields = List.firstn pkt.mind_consnrealdecls.(0) rctx in
let kns, projs =
- compute_projections ((kn, 0), u) pkt.mind_typename nparamargs params
+ compute_projections indsp pkt.mind_typename nparamargs params
pkt.mind_consnrealdecls pkt.mind_consnrealargs fields
in Some (kns, projs)
with UndefinableExpansion -> Some ([||], [||]))