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 *)
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15 include "delayed_updating/unwind/unwind2_path.ma".
16 include "delayed_updating/unwind/unwind2_rmap_eq.ma".
18 (* TAILED UNWIND FOR PATH ***************************************************)
20 (* Constructions with tr_map_eq *********************************************)
22 lemma unwind2_path_eq_repl (p):
23 stream_eq_repl … (λf1,f2. ▼[f1]p = ▼[f2]p).
24 * // * [ #k ] #p #f1 #f2 #Hf //
25 <unwind2_path_d_dx <unwind2_path_d_dx
26 lapply (unwind2_rmap_eq_repl … Hf) -Hf
27 [| #Hf <(tr_pap_eq_repl … Hf) -f2 ] //