From: Enrico Tassi <enrico.tassi@inria.fr>
Date: Tue, 31 May 2005 15:46:15 +0000 (+0000)
Subject:  added comment
X-Git-Tag: PRE_INDEX_1~86
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=242e171b023f113228c55ad273797c63becf53e6;p=helm.git

 added comment
---

diff --git a/helm/ocaml/tactics/primitiveTactics.ml b/helm/ocaml/tactics/primitiveTactics.ml
index 5b3e47fba..c1823d1c9 100644
--- a/helm/ocaml/tactics/primitiveTactics.ml
+++ b/helm/ocaml/tactics/primitiveTactics.ml
@@ -201,6 +201,12 @@ let new_metasenv_for_apply newmeta proof context ty =
          in
          let s' = CicReduction.normalize ~delta:false context s in
           res,(newmeta,context,s')::newmetasenv,newargument::arguments,lastmeta
+          (** NORMALIZE RATIONALE 
+           * we normalize the target only NOW since we may be in this case:
+           * A1 -> A2 -> T where T = (\lambda x.A3 -> P) k  
+           * and we want a mesasenv with ?1:A1 and ?2:A2 and not
+           * ?1, ?2, ?3 (that is the one we whould get if we start from the
+           * beta-normalized A1 -> A2 -> A3 -> P **)
     | t -> (CicReduction.normalize ~delta:false context t),[],[],newmeta
   in
    (* WARNING: here we are using the invariant that above the most *)