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Step * of Lemma picomm-pre_wf

∀[v:pi_term()]. picomm-pre(v) ∈ pi_prefix() supposing ↑picomm?(v)
BY
{ DepprodCoDatatypeSelectorWf }

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Latex:

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Latex:
\mforall{}[v:pi\_term()].  picomm-pre(v)  \mmember{}  pi\_prefix()  supposing  \muparrow{}picomm?(v)


By

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Latex:
DepprodCoDatatypeSelectorWf

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