milestone update in ground_2 and basic_2A

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / etc_2A1 / cpr / tprs_lift.etc

diff --git a/matita/matita/contribs/lambdadelta/basic_2/etc_2A1/cpr/tprs_lift.etc b/matita/matita/contribs/lambdadelta/basic_2/etc_2A1/cpr/tprs_lift.etc
deleted file mode 100644 (file)
index d0d1734..0000000
--- a/matita/matita/contribs/lambdadelta/basic_2/etc_2A1/cpr/tprs_lift.etc
+++ /dev/null
@@ -1,43 +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/reducibility/tpr_lift.ma".
-include "basic_2/computation/tprs.ma".
-
-(* CONTEXT-FREE PARALLEL COMPUTATION ON TERMS *******************************)
-
-(* Advanced inversion lemmas ************************************************)
-
-lemma tprs_inv_abst1: ∀a,V1,T1,U2. ⓛ{a}V1. T1 ➡* U2 →
-                      ∃∃V2,T2. V1 ➡* V2 & T1 ➡* T2 & U2 = ⓛ{a}V2. T2.
-#a #V1 #T1 #U2 #H @(tprs_ind … H) -U2 /2 width=5/
-#U #U2 #_ #HU2 * #V #T #HV1 #HT1 #H destruct
-elim (tpr_inv_abst1 … HU2) -HU2 #V2 #T2 #HV2 #HT2 #H destruct /3 width=5/
-qed-.
-
-lemma tprs_inv_abst: ∀a,V1,V2,T1,T2. ⓛ{a}V1. T1 ➡* ⓛ{a}V2. T2 →
-                     V1 ➡* V2 ∧ T1 ➡* T2.
-#a #V1 #V2 #T1 #T2 #H
-elim (tprs_inv_abst1 … H) -H #V #T #HV1 #HT1 #H destruct /2 width=1/
-qed-.
-
-(* Relocation properties ****************************************************)
-
-(* Note: this was missing in basic_1 *)
-lemma tprs_lift: t_liftable tprs.
-/3 width=7/ qed.
-
-(* Note: this was missing in basic_1 *)
-lemma tprs_inv_lift1: t_deliftable_sn tprs.
-/3 width=3 by tpr_inv_lift1, t_deliftable_sn_TC/ qed-.