Step
*
of Lemma
nfoldunion_wf
∀[n:ℕ]. (nfoldunion(n) ∈ Type)
BY
{ (Unfold `nfoldunion` 0 THEN Auto) }
Latex:
Latex:
\mforall{}[n:\mBbbN{}].  (nfoldunion(n)  \mmember{}  Type)
By
Latex:
(Unfold  `nfoldunion`  0  THEN  Auto)
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