milestone update in ground

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

diff --git a/matita/matita/contribs/lambdadelta/ground/relocation/pstream_isid.ma b/matita/matita/contribs/lambdadelta/ground/relocation/pstream_isid.ma
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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/relocation/rtmap_isid.ma".
-
-(* RELOCATION N-STREAM ******************************************************)
-
-(* Specific inversion lemmas ************************************************)
-
-lemma isid_inv_seq: ∀f,p. 𝐈❪p⨮f❫ → 𝐈❪f❫ ∧ 𝟏 = p.
-#f #p #H elim (isid_inv_gen … H) -H
-#g #Hg #H elim (push_inv_seq_dx … H) -H /2 width=1 by conj/
-qed-.