update in static_2

[helm.git] / matita / matita / contribs / lambdadelta / static_2 / syntax / tweq_teqx.ma

diff --git a/matita/matita/contribs/lambdadelta/static_2/syntax/tweq_teqx.ma b/matita/matita/contribs/lambdadelta/static_2/syntax/tweq_teqx.ma
deleted file mode 100644 (file)
index 39cf1e3..0000000
--- a/matita/matita/contribs/lambdadelta/static_2/syntax/tweq_teqx.ma
+++ /dev/null
@@ -1,32 +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/syntax/tweq.ma".
-
-(* SORT-IRRELEVANT WHD EQUIVALENCE ON TERMS *********************************)
-
-(* Properties with sort-irrelevant equivalence for terms ********************)
-
-lemma teqx_tweq: ∀T1,T2. T1 ≛ T2 → T1 ≅ T2.
-#T1 #T2 #H elim H -T1 -T2 [||| * [ #p ] * #V1 #V2 #T1 #T2 #_ #_ #IHV #IHT ]
-[ /1 width=1 by tweq_sort/
-| /1 width=1 by tweq_lref/
-| /1 width=1 by tweq_gref/
-| cases p -p /2 width=1 by tweq_abbr_pos, tweq_abbr_neg/
-| /1 width=1 by tweq_abst/
-| /2 width=1 by tweq_appl/
-| /2 width=1 by tweq_cast/
-]
-qed.