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Step * of Lemma pisend-chan_wf

∀[v:pi_prefix()]. pisend-chan(v) ∈ Name supposing ↑pisend?(v)
BY
{ DepprodCoDatatypeSelectorWf }

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Latex:

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Latex:
\mforall{}[v:pi\_prefix()].  pisend-chan(v)  \mmember{}  Name  supposing  \muparrow{}pisend?(v)


By

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Latex:
DepprodCoDatatypeSelectorWf

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