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Step * of Lemma rev_permf_order_2

∀n:ℕ. ((rev_permf(n) o rev_permf(n)) = Id ∈ (ℕn ⟶ ℕn))
BY
{ (Unfolds ``compose rev_permf identity`` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}n:\mBbbN{}.  ((rev\_permf(n)  o  rev\_permf(n))  =  Id)


By

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Latex:
(Unfolds  ``compose  rev\_permf  identity``  0  THEN  Auto)

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