milestone update in ground_2 and basic_2A

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / etc_2A1 / tshf / cpr_tshf.etc

diff --git a/matita/matita/contribs/lambdadelta/basic_2/etc_2A1/tshf/cpr_tshf.etc b/matita/matita/contribs/lambdadelta/basic_2/etc_2A1/tshf/cpr_tshf.etc
deleted file mode 100644 (file)
index 0fc5e1d..0000000
--- a/matita/matita/contribs/lambdadelta/basic_2/etc_2A1/tshf/cpr_tshf.etc
+++ /dev/null
@@ -1,46 +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/grammar/tshf.ma".
-include "basic_2/reduction/cpr.ma".
-
-(* CONTEXT-SENSITIVE PARALLEL REDUCTION FOR TERMS ***************************)
-
-(* Forward lemmas on same head forms for terms ******************************)
-
-lemma cpr_fwd_tshf1: ∀L,T1,T2. L ⊢ T1 ➡ T2 → T1 ≈ T1 →
-                     T2 ≈ T1 ∨ (L = ⋆ → ⊥).
-#L #T1 #T2 #H elim H -L -T1 -T2
-[ /2 width=1/
-| #L #K #V1 #V2 #W2 #i #HLK #_ #_ #_ #_
-  @or_intror #H destruct
-  lapply (ldrop_inv_atom1 … HLK) -HLK #H destruct
-| #a #I #L #V1 #V2 #T1 #T2 #_ #_ #_ #_ #H
-  elim (tshf_inv_bind1 … H) -H #W2 #U2 #H1 * #H2 destruct /2 width=1/
-| #I #L #V1 #V2 #T1 #T2 #_ #_ #_ #IHT12 #H
-  elim (tshf_inv_flat1 … H) -H #W2 #U2 #HT1U2 #HT1 #_ #H1 #H2 destruct
-  lapply (IHT12 HT1U2) -IHT12 -HT1U2 * #HUT2 /3 width=1/
-  lapply (simple_tshf_repl_sn … HUT2 HT1) /3 width=1/
-| #L #V #T #T1 #T2 #_ #_ #_ #H
-  elim (tshf_inv_bind1 … H) -H #W2 #U2 #H1 * #H2 destruct
-| #L #V #T1 #T2 #_ #_ #H
-  elim (tshf_inv_flat1 … H) -H #W2 #U2 #_ #_ #_ #H destruct
-| #a #L #V1 #V2 #W #T1 #T2 #_ #_ #_ #_ #H
-  elim (tshf_inv_flat1 … H) -H #W2 #U2 #_ #H
-  elim (simple_inv_bind … H)
-| #a #L #V2 #V1 #V #W1 #W2 #T1 #T2 #_ #_ #_ #_ #_ #_ #_ #H
-  elim (tshf_inv_flat1 … H) -H #U1 #U2 #_ #H
-  elim (simple_inv_bind … H)
-]
-qed-.