Step
*
of Lemma
MTree_Node-children_wf
∀[T:Type]. ∀[v:MultiTree(T)].  MTree_Node-children(v) ∈ {a:Atom| (a ∈ MTree_Node-labels(v))}  ─→ MultiTree(T) supposing \000C↑MTree_Node?(v)
BY
{ DepprodCoDatatypeSelectorWf }
Latex:
\mforall{}[T:Type].  \mforall{}[v:MultiTree(T)].
    MTree\_Node-children(v)  \mmember{}  \{a:Atom|  (a  \mmember{}  MTree\_Node-labels(v))\}    {}\mrightarrow{}  MultiTree(T)  supposing  \muparrow{}MTree\_No\000Cde?(v)
By
DepprodCoDatatypeSelectorWf
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