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Step * 3 of Lemma tl_perm_wf

.....wf..... 
1. n : ℕ+
2. p : Perm(ℕn)
3. p1 : perm_sig(ℕ+n)
⊢ istype(InvFuns(ℕ+n;ℕ+n;p1.f;p1.b))
BY
{ TACTIC:Auto }

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Latex:

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Latex:
.....wf..... 
1.  n  :  \mBbbN{}\msupplus{}
2.  p  :  Perm(\mBbbN{}n)
3.  p1  :  perm\_sig(\mBbbN{}\msupplus{}n)
\mvdash{}  istype(InvFuns(\mBbbN{}\msupplus{}n;\mBbbN{}\msupplus{}n;p1.f;p1.b))


By

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Latex:
TACTIC:Auto

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