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Step * of Lemma isEven_wf

∀[n:ℤ]. (isEven(n) ∈ 𝔹)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[n:\mBbbZ{}].  (isEven(n)  \mmember{}  \mBbbB{})


By

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Latex:
ProveWfLemma

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