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Step * of Lemma transmem_wf

∀[x,y:coSet{i:l}].  ((x ∈∈ y) ∈ ℙ')
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[x,y:coSet\{i:l\}].    ((x  \mmember{}\mmember{}  y)  \mmember{}  \mBbbP{}')


By

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Latex:
ProveWfLemma

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