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Step * of Lemma change-from1_wf

∀[a:ℕ ⟶ ℕ]. (change-from1(a) ∈ ℕ ⟶ 𝔹)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[a:\mBbbN{}  {}\mrightarrow{}  \mBbbN{}].  (change-from1(a)  \mmember{}  \mBbbN{}  {}\mrightarrow{}  \mBbbB{})


By

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Latex:
ProveWfLemma

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