Step
*
of Lemma
MTree_Leaf-val_wf
∀[T:Type]. ∀[v:MultiTree(T)].  MTree_Leaf-val(v) ∈ T supposing ↑MTree_Leaf?(v)
BY
{ DepprodCoDatatypeSelectorWf }
Latex:
\mforall{}[T:Type].  \mforall{}[v:MultiTree(T)].    MTree\_Leaf-val(v)  \mmember{}  T  supposing  \muparrow{}MTree\_Leaf?(v)
By
DepprodCoDatatypeSelectorWf
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