diff options
| -rw-r--r-- | pretyping/indrec.ml | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/pretyping/indrec.ml b/pretyping/indrec.ml index c92c9a75a0..b5d81f762a 100644 --- a/pretyping/indrec.ml +++ b/pretyping/indrec.ml @@ -530,22 +530,25 @@ let change_sort_arity sort = corresponding eta-expanded term *) let weaken_sort_scheme env evd set sort npars term ty = let evdref = ref evd in - let rec drec np elim = + let rec drec ctx np elim = match kind elim with | Prod (n,t,c) -> + let ctx = LocalAssum (n, t) :: ctx in if Int.equal np 0 then let osort, t' = change_sort_arity sort t in evdref := (if set then Evd.set_eq_sort else Evd.set_leq_sort) env !evdref sort osort; mkProd (n, t', c), - mkLambda (n, t', mkApp(term,Termops.rel_vect 0 (npars+1))) + mkLambda (n, t', mkApp(term, Context.Rel.to_extended_vect mkRel 0 ctx)) else - let c',term' = drec (np-1) c in + let c',term' = drec ctx (np-1) c in mkProd (n, t, c'), mkLambda (n, t, term') - | LetIn (n,b,t,c) -> let c',term' = drec np c in - mkLetIn (n,b,t,c'), mkLetIn (n,b,t,term') + | LetIn (n,b,t,c) -> + let ctx = LocalDef (n, b, t) :: ctx in + let c',term' = drec ctx np c in + mkLetIn (n,b,t,c'), mkLetIn (n,b,t,term') | _ -> anomaly ~label:"weaken_sort_scheme" (Pp.str "wrong elimination type.") in - let ty, term = drec npars ty in + let ty, term = drec [] npars ty in !evdref, ty, term (**********************************************************************) |