X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=inline;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fetc_2A1%2Fcny%2Flpx_cpye.etc;fp=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fetc_2A1%2Fcny%2Flpx_cpye.etc;h=0000000000000000000000000000000000000000;hb=1fd63df4c77f5c24024769432ea8492748b4ac79;hp=48816c85df145593046212029ccae0fb889c6e14;hpb=277fc8ff21ce3dbd6893b1994c55cf5c06a98355;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/etc_2A1/cny/lpx_cpye.etc b/matita/matita/contribs/lambdadelta/basic_2/etc_2A1/cny/lpx_cpye.etc
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--- a/matita/matita/contribs/lambdadelta/basic_2/etc_2A1/cny/lpx_cpye.etc
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-(**************************************************************************)
-(*       ___                                                              *)
-(*      ||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/substitution/cpye_cpye.ma".
-include "basic_2/reduction/lpx_cpys.ma".
-
-axiom cpx_cpys_conf_lpx: ∀h,g,G,d,e.
-                         ∀L0,T0,T1. ⦃G, L0⦄ ⊢ T0 ➡[h, g] T1 → ∀L1. ⦃G, L0⦄ ⊢ ➡[h, g] L1 →
-                         ∀T2. ⦃G, L0⦄ ⊢ T0 ▶*[d, e] T2 →
-                         ∃∃T. ⦃G, L1⦄ ⊢ T1 ▶*[d, e] T & ⦃G, L0⦄ ⊢ T2 ➡[h, g] T.
-
-(* SN EXTENDED PARALLEL REDUCTION ON LOCAL ENVIRONMENTS *********************)
-
-(* Forward lemmas on evaluation for extended substitution *******************)
-
-lemma cpx_cpys_cpye_fwd_lpx: ∀h,g,G,L1,T1,T2. ⦃G, L1⦄ ⊢ T1 ➡[h, g] T2 →
-                             ∀L2. ⦃G, L1⦄ ⊢ ➡[h, g] L2 →
-                             ∀U1,d,e. ⦃G, L1⦄ ⊢ T1 ▶*[d, e] U1 →
-                             ∀U2. ⦃G, L2⦄ ⊢ T2 ▶*[d, e] 𝐍⦃U2⦄ →
-                             ⦃G, L1⦄ ⊢ U1 ➡[h, g] U2.
-#h #g #G #L1 #T1 #T2 #HT12 #L2 #HL12 #U1 #d #e #HTU1
-elim (cpx_cpys_conf_lpx … HT12 … HL12 … HTU1) -T1
-/3 width=9 by cpx_cpys_trans_lpx, cpye_cpys_conf/
-qed-.
-
-lemma cpx_cpye_fwd_lpx: ∀h,g,G,L1,T1,T2. ⦃G, L1⦄ ⊢ T1 ➡[h, g] T2 →
-                        ∀L2. ⦃G, L1⦄ ⊢ ➡[h, g] L2 →
-                        ∀U1,d,e. ⦃G, L1⦄ ⊢ T1 ▶*[d, e] 𝐍⦃U1⦄ →
-                        ∀U2. ⦃G, L2⦄ ⊢ T2 ▶*[d, e] 𝐍⦃U2⦄ →
-                        ⦃G, L1⦄ ⊢ U1 ➡[h, g] U2.
-#h #g #G #L1 #T1 #T2 #HT12 #L2 #HL12 #U1 #d #e *
-/2 width=9 by cpx_cpys_cpye_fwd_lpx/
-qed-.