update in basic_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / static / lfdeq_lfeq.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/static/lfdeq_lfeq.ma b/matita/matita/contribs/lambdadelta/basic_2/static/lfdeq_lfeq.ma
new file mode 100644 (file)
index 0000000..41b2c03
--- /dev/null
+++ b/matita/matita/contribs/lambdadelta/basic_2/static/lfdeq_lfeq.ma
@@ -0,0 +1,23 @@
+(**************************************************************************)
+(*       ___                                                              *)
+(*      ||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/lfeq.ma".
+include "basic_2/static/lfdeq.ma".
+
+(* DEGREE-BASED EQUIVALENCE FOR LOCAL ENVIRONMENTS ON REFERRED ENTRIES ******)
+
+(* Properties with syntactic equivalence on referred entries ****************)
+
+lemma lfeq_lfdeq: ∀h,o,L1,L2,T. L1 ≡[T] L2 → L1 ≛[h, o, T] L2.
+/2 width=3 by lfxs_co/ qed.