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Step * of Lemma l_exists_wf_nil

∀[P:Void ⟶ Void]. ((∃x∈[]. P[x]) ∈ ℙ)
BY
{ (RepUR ``l_exists`` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[P:Void  {}\mrightarrow{}  Void].  ((\mexists{}x\mmember{}[].  P[x])  \mmember{}  \mBbbP{})


By

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Latex:
(RepUR  ``l\_exists``  0  THEN  Auto)

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