update in ground

[helm.git] / matita / matita / contribs / lambdadelta / ground / relocation / gr_tl.ma

diff --git a/matita/matita/contribs/lambdadelta/ground/relocation/gr_tl.ma b/matita/matita/contribs/lambdadelta/ground/relocation/gr_tl.ma
deleted file mode 100644 (file)
index 2d395b6..0000000
--- a/matita/matita/contribs/lambdadelta/ground/relocation/gr_tl.ma
+++ /dev/null
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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 "ground/notation/functions/downspoon_1.ma".
-include "ground/lib/stream_hdtl.ma".
-include "ground/relocation/gr_map.ma".
-
-(* TAIL FOR GENERIC RELOCATION MAPS *****************************************)
-
-(*** tl *)
-definition gr_tl (f): gr_map ≝ ⇂f.
-
-interpretation
-  "tail (generic relocation maps)"
-  'DownSpoon f = (gr_tl f).
-
-(* Basic constructions ******************************************************)
-
-(*** tl_push_rew *)
-lemma gr_tl_push (f): f = ⫰⫯f.
-// qed.
-
-(*** tl_next_rew *)
-lemma gr_tl_next (f): f = ⫰↑f.
-// qed.
-
-(* Basic eliminations *******************************************************)
-
-(*** pn_split gr_map_split *)
-lemma gr_map_split_tl (f): ∨∨ ⫯⫰f = f | ↑⫰f = f.
-* * /2 width=1 by or_introl, or_intror/
-qed-.