Step
*
of Lemma
isEven_wf
∀[n:ℤ]. (isEven(n) ∈ 𝔹)
BY
{ ProveWfLemma }
Latex:
Latex:
\mforall{}[n:\mBbbZ{}].  (isEven(n)  \mmember{}  \mBbbB{})
By
Latex:
ProveWfLemma
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