syntactic components detached from basic_2 become static_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / i_static / rexs_length.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/i_static/rexs_length.ma b/matita/matita/contribs/lambdadelta/basic_2/i_static/rexs_length.ma
deleted file mode 100644 (file)
index 9b1e126..0000000
--- a/matita/matita/contribs/lambdadelta/basic_2/i_static/rexs_length.ma
+++ /dev/null
@@ -1,29 +0,0 @@
-(**************************************************************************)
-(*       ___                                                              *)
-(*      ||M||                                                             *)
-(*      ||A||       A project by Andrea Asperti                           *)
-(*      ||T||                                                             *)
-(*      ||I||       Developers:                                           *)
-(*      ||T||         The HELM team.                                      *)
-(*      ||A||         http://helm.cs.unibo.it                             *)
-(*      \   /                                                             *)
-(*       \ /        This file is distributed under the terms of the       *)
-(*        v         GNU General Public License Version 2                  *)
-(*                                                                        *)
-(**************************************************************************)
-
-include "basic_2/static/rex_length.ma".
-include "basic_2/i_static/rexs.ma".
-
-(* ITERATED EXTENSION ON REFERRED ENTRIES OF A CONTEXT-SENSITIVE REALTION ***)
-
-(* Forward lemmas with length for local environments ************************)
-
-(* Basic_2A1: uses: TC_lpx_sn_fwd_length *)
-lemma rexs_fwd_length: ∀R,L1,L2,T. L1 ⪤*[R, T] L2 → |L1| = |L2|.
-#R #L1 #L2 #T #H elim H -L2
-[ #L2 #HL12 >(rex_fwd_length … HL12) -HL12 //
-| #L #L2 #_ #HL2 #IHL1
-  >IHL1 -L1 >(rex_fwd_length … HL2) -HL2 //
-]
-qed-.