1 (**************************************************************************)
4 (* ||A|| A project by Andrea Asperti *)
6 (* ||I|| Developers: *)
7 (* ||T|| The HELM team. *)
8 (* ||A|| http://helm.cs.unibo.it *)
10 (* \ / This file is distributed under the terms of the *)
11 (* v GNU General Public License Version 2 *)
13 (**************************************************************************)
15 include "ground/relocation/tr_pap_hdtl.ma".
16 include "ground/lib/stream_hdtl_eq.ma".
18 (* POSITIVE APPLICATION FOR TOTAL RELOCATION MAPS ***************************)
20 (* Inversions with stream_eq and stream_tl **********************************)
22 lemma tr_eq_inv_pap_unit_tl_bi (f1) (f2):
23 f1@⧣❨𝟏❩ = f2@⧣❨𝟏❩ → ⇂f1 ≗ ⇂f2 → f1 ≗ f2.
25 /2 width=1 by stream_eq_inv_hd_tl_bi/