update in basic_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / rt_conversion / lpce_drops.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_conversion/lpce_drops.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_conversion/lpce_drops.ma
new file mode 100644 (file)
index 0000000..2d683d0
--- /dev/null
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_conversion/lpce_drops.ma
@@ -0,0 +1,26 @@
+(**************************************************************************)
+(*       ___                                                              *)
+(*      ||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 "static_2/relocation/drops_lex.ma".
+include "basic_2/rt_conversion/lpce.ma".
+
+(* PARALLEL ETA-CONVERSION FOR FULL LOCAL ENVIRONMENTS **********************)
+
+(* Inversion lemmas with generic slicing for local environments *************)
+
+lemma lpce_drops_conf (h) (G): dropable_sn (cpce h G).
+/2 width=3 by lex_dropable_sn/ qed-.
+
+lemma lpce_drops_trans (h) (G): dropable_dx (cpce h G).
+/2 width=3 by lex_dropable_dx/ qed-.