work in progress with voids and lveq (was: the most recent voids)

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / syntax / voids_voids.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/syntax/voids_voids.ma b/matita/matita/contribs/lambdadelta/basic_2/syntax/voids_voids.ma
deleted file mode 100644 (file)
index 5ee9d47..0000000
--- a/matita/matita/contribs/lambdadelta/basic_2/syntax/voids_voids.ma
+++ /dev/null
@@ -1,23 +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/syntax/voids.ma".
-
-(* EQUIVALENCE FOR LOCAL ENVIRONMENTS UP TO EXCLUSION BINDERS ***************)
-
-(* Main inversion lemmas ****************************************************)
-
-theorem voids_inj: ∀L1,L2,n1,n2. ⓧ*[n1]L1 ≋ ⓧ*[n2]L2 →
-                   ∀m1,m2. ⓧ*[m1]L1 ≋ ⓧ*[m2]L2 →
-                   ∧∧ n1 = m1 & n2 = m2.