update in static_2

[helm.git] / matita / matita / contribs / lambdadelta / static_2 / s_transition / fqu_teqx.ma

diff --git a/matita/matita/contribs/lambdadelta/static_2/s_transition/fqu_teqx.ma b/matita/matita/contribs/lambdadelta/static_2/s_transition/fqu_teqx.ma
deleted file mode 100644 (file)
index d24fe58..0000000
--- a/matita/matita/contribs/lambdadelta/static_2/s_transition/fqu_teqx.ma
+++ /dev/null
@@ -1,36 +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 "static_2/syntax/teqx.ma".
-include "static_2/s_transition/fqu_length.ma".
-
-(* SUPCLOSURE ***************************************************************)
-
-(* Inversion lemmas with context-free sort-irrelevant equivalence for terms *)
-
-fact fqu_inv_teqx_aux: ∀b,G1,G2,L1,L2,T1,T2. ❪G1,L1,T1❫ ⬂[b] ❪G2,L2,T2❫ →
-                       G1 = G2 → |L1| = |L2| → T1 ≛ T2 → ⊥.
-#b #G1 #G2 #L1 #L2 #T1 #T2 * -G1 -G2 -L1 -L2 -T1 -T2
-[1: #I #G #L #V #_ #H elim (succ_inv_refl_sn … H)
-|6: #I #G #L #T #U #_ #_ #H elim (succ_inv_refl_sn … H)
-]
-/2 width=6 by teqx_inv_pair_xy_y, teqx_inv_pair_xy_x/
-qed-.
-
-(* Basic_2A1: uses: fqu_inv_eq *)
-lemma fqu_inv_teqx: ∀b,G,L1,L2,T1,T2. ❪G,L1,T1❫ ⬂[b] ❪G,L2,T2❫ →
-                    |L1| = |L2| → T1 ≛ T2 → ⊥.
-#b #G #L1 #L2 #T1 #T2 #H
-@(fqu_inv_teqx_aux … H) // (**) (* full auto fails *)
-qed-.