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Step * of Lemma tree_node-right_wf

∀[E:Type]. ∀[v:tree(E)].  tree_node-right(v) ∈ tree(E) supposing ↑tree_node?(v)
BY
{ DepprodCoDatatypeSelectorWf }

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Latex:

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Latex:
\mforall{}[E:Type].  \mforall{}[v:tree(E)].    tree\_node-right(v)  \mmember{}  tree(E)  supposing  \muparrow{}tree\_node?(v)


By

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Latex:
DepprodCoDatatypeSelectorWf

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