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Step * of Lemma bs_tree_size_wf

∀[E:Type]. ∀[p:bs_tree(E)].  (bs_tree_size(p) ∈ ℕ)
BY
{ ProveCoSizeWf2 `bs_treeco_size` }

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Latex:

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Latex:
\mforall{}[E:Type].  \mforall{}[p:bs\_tree(E)].    (bs\_tree\_size(p)  \mmember{}  \mBbbN{})


By

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Latex:
ProveCoSizeWf2  `bs\_treeco\_size`

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