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4 (* ||A|| A project by Andrea Asperti *)
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7 (* ||T|| The HELM team. *)
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15 include "delayed_updating/unwind/unwind2_rmap.ma".
16 include "delayed_updating/syntax/path_guard.ma".
17 include "ground/relocation/nap.ma".
19 (* TAILED UNWIND FOR RELOCATION MAP *****************************************)
21 (* Destructions with pgc ****************************************************)
23 lemma unwind2_rmap_push_guard (f) (p):
24 p ϵ 𝐆 → ⫯⇂▶[⫯f]p = ▶[⫯f]p.
28 lemma nap_zero_unwind2_rmap_push_guard (f) (p):
29 p ϵ 𝐆 → 𝟎 = ▶[⫯f]p@§❨𝟎❩.
31 <(unwind2_rmap_push_guard … Hp) -Hp //