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Step * of Lemma str1-to-nat_wf

∀[a:Atom]. (str1-to-nat(a) ∈ ℕ)
BY
{ (Unfold `str1-to-nat` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[a:Atom].  (str1-to-nat(a)  \mmember{}  \mBbbN{})


By

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Latex:
(Unfold  `str1-to-nat`  0  THEN  Auto)

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