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Step * of Lemma RankEx4_size_wf

∀[p:RankEx4()]. (RankEx4_size(p) ∈ ℕ)
BY
{ ProveCoSizeWf2 `RankEx4co_size` }

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Latex:

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Latex:
\mforall{}[p:RankEx4()].  (RankEx4\_size(p)  \mmember{}  \mBbbN{})


By

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Latex:
ProveCoSizeWf2  `RankEx4co\_size`

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