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Step * of Lemma hd_wf_listp

∀[A:Type]. ∀[l:A List+].  (hd(l) ∈ A)
BY
{ Auto }

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Latex:

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Latex:
\mforall{}[A:Type].  \mforall{}[l:A  List\msupplus{}].    (hd(l)  \mmember{}  A)


By

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Latex:
Auto

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