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Step * of Lemma null-class_wf

∀[Info,T:Type].  (Null ∈ EClass(T))
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[Info,T:Type].    (Null  \mmember{}  EClass(T))


By

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Latex:
ProveWfLemma

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