Step
*
of Lemma
FormMember-element_wf
∀[C:Type]. ∀[v:Form(C)]. FormMember-element(v) ∈ Form(C) supposing ↑FormMember?(v)
BY
{ DepprodCoDatatypeSelectorWf }
Latex:
Latex:
\mforall{}[C:Type]. \mforall{}[v:Form(C)]. FormMember-element(v) \mmember{} Form(C) supposing \muparrow{}FormMember?(v)
By
Latex:
DepprodCoDatatypeSelectorWf
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