X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Flambda-delta%2Fbasic_rg%2FbrgSubstitution.ml;h=e482b66c0bc4ac951171c555e0022f578fd4759b;hb=c2b39b7ef14ab610cb2056fb6b75492c7068288e;hp=5adc12631f26778d4c9fa77a1b9c75a487c3423c;hpb=dcdee4ca839dac671924a95f0ada71faf06a8be4;p=helm.git

diff --git a/helm/software/lambda-delta/basic_rg/brgSubstitution.ml b/helm/software/lambda-delta/basic_rg/brgSubstitution.ml
index 5adc12631..e482b66c0 100644
--- a/helm/software/lambda-delta/basic_rg/brgSubstitution.ml
+++ b/helm/software/lambda-delta/basic_rg/brgSubstitution.ml
@@ -13,16 +13,16 @@ module B = Brg
 
 let iter map d =
    let rec iter_bind d = function
-      | B.Void as b -> b
-      | B.Abst w    -> B.Abst (iter_term d w)
-      | B.Abbr v    -> B.Abbr (iter_term d v)
+      | B.Void _ as b -> b
+      | B.Abst (a, w) -> B.Abst (a, iter_term d w)
+      | B.Abbr (a, v) -> B.Abbr (a, iter_term d v)
    and iter_term d = function
       | B.Sort _ as t      -> t
       | B.GRef _ as t      -> t
       | B.LRef (a, i) as t -> if i < d then t else map d a i
       | B.Cast (a, w, v)   -> B.Cast (a, iter_term d w, iter_term d v)
       | B.Appl (a, w, u)   -> B.Appl (a, iter_term d w, iter_term d u)
-      | B.Bind (a, b, u)   -> B.Bind (a, iter_bind d b, iter_term (succ d) u)
+      | B.Bind (b, u)      -> B.Bind (iter_bind d b, iter_term (succ d) u)
    in
    iter_term d
 
@@ -33,6 +33,6 @@ let lift g h d t =
    if h = 0 then g t else g (iter (lift_map h) d t)
 
 let lift_bind g h d = function
-   | B.Void   -> g B.Void
-   | B.Abst w -> let g w = g (B.Abst w) in lift g h d w
-   | B.Abbr v -> let g v = g (B.Abbr v) in lift g h d v
+   | B.Void _ as b -> g b
+   | B.Abst (a, w) -> let g w = g (B.abst a w) in lift g h d w
+   | B.Abbr (a, v) -> let g v = g (B.abbr a v) in lift g h d v