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Step * of Lemma first-eclass_wf

∀[Info,A:Type]. ∀[Xs:EClass(A) List].  (first-eclass(Xs) ∈ EClass(A))
BY
{ (Unfold `eclass` 0 THEN ProveWfLemma) }

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Latex:

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Latex:
\mforall{}[Info,A:Type].  \mforall{}[Xs:EClass(A)  List].    (first-eclass(Xs)  \mmember{}  EClass(A))


By

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Latex:
(Unfold  `eclass`  0  THEN  ProveWfLemma)

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