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Step * of Lemma l_tree_size_wf

∀[L,T:Type]. ∀[p:l_tree(L;T)].  (l_tree_size(p) ∈ ℕ)
BY
{ ProveCoSizeWf2 `l_treeco_size` }

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Latex:


\mforall{}[L,T:Type].  \mforall{}[p:l\_tree(L;T)].    (l\_tree\_size(p)  \mmember{}  \mBbbN{})


By

ProveCoSizeWf2  `l\_treeco\_size`

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