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Step * of Lemma nsub2_subtype_extd-nameset

∀[L:Cname List]. (ℕ2 ⊆r extd-nameset(L))
BY
{ (Unfold `extd-nameset` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[L:Cname  List].  (\mBbbN{}2  \msubseteq{}r  extd-nameset(L))


By

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Latex:
(Unfold  `extd-nameset`  0  THEN  Auto)

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