syntactic components detached from basic_2 become static_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / syntax / ceq_ext.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/syntax/ceq_ext.ma b/matita/matita/contribs/lambdadelta/basic_2/syntax/ceq_ext.ma
deleted file mode 100644 (file)
index f898401..0000000
--- a/matita/matita/contribs/lambdadelta/basic_2/syntax/ceq_ext.ma
+++ /dev/null
@@ -1,31 +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/syntax/cext2.ma".
-
-(* CONTEXT-AWARE SYNTACTIC EQUIVALENCE FOR BINDERS **************************)
-
-definition ceq_ext: lenv → relation bind ≝
-                    cext2 ceq.
-
-(* Basic properties *********************************************************)
-
-lemma ceq_ext_refl (L): reflexive … (ceq_ext L).
-/2 width=1 by ext2_refl/ qed.
-
-(* Basic inversion lemmas ***************************************************)
-
-lemma ceq_ext_inv_eq: ∀L,I1,I2. ceq_ext L I1 I2 → I1 = I2.
-#L #I1 #I2 * -I1 -I2 //
-qed-.