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Step * of Lemma truncate_wf

∀[X:Type]. ∀[x:X].  (|x| ∈ ⇃(X))
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[X:Type].  \mforall{}[x:X].    (|x|  \mmember{}  \00D9(X))


By

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Latex:
ProveWfLemma

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