diff options
| author |  Amin Timany <amintimany@gmail.com> | 2017-06-15 16:50:05 +0200 |
|---|---|---|
| committer |  Emilio Jesus Gallego Arias <e+git@x80.org> | 2017-06-16 04:52:11 +0200 |
| commit | 15b1856edd593b39d63d23584a4f5acec0eeb592 (patch) | |
| tree | 4233f58e213573b48bfd2692af758b30f385db7c /pretyping/evarconv.ml | |
| parent | a4969591f391d857a9efd038338e1a80fc68950b (diff) | |
Fix a bug in cumulativity
Diffstat (limited to 'pretyping/evarconv.ml')
| -rw-r--r-- | pretyping/evarconv.ml | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/pretyping/evarconv.ml b/pretyping/evarconv.ml index b15dde5d7..d84363089 100644 --- a/pretyping/evarconv.ml +++ b/pretyping/evarconv.ml @@ -353,12 +353,13 @@ let exact_ise_stack2 env evd f sk1 sk2 = let check_leq_inductives evd cumi u u' = let u = EConstr.EInstance.kind evd u in let u' = EConstr.EInstance.kind evd u' in - let ind_instance = - Univ.AUContext.instance (Univ.ACumulativityInfo.univ_context cumi) + let length_ind_instance = + Univ.Instance.length + (Univ.AUContext.instance (Univ.ACumulativityInfo.univ_context cumi)) in let ind_sbcst = Univ.ACumulativityInfo.subtyp_context cumi in - if not ((Univ.Instance.length ind_instance = Univ.Instance.length u) && - (Univ.Instance.length ind_instance = Univ.Instance.length u')) then + if not ((length_ind_instance = Univ.Instance.length u) && + (length_ind_instance = Univ.Instance.length u')) then anomaly (Pp.str "Invalid inductive subtyping encountered!") else begin |