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Step * of Lemma dl-aprog-1_wf

∀[x:Prog]. dl-aprog-1(x) ∈ ℕ supposing ↑dl-aprog?(x)
BY
{ MrecSelectorWf dlElim }

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Latex:

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Latex:
\mforall{}[x:Prog].  dl-aprog-1(x)  \mmember{}  \mBbbN{}  supposing  \muparrow{}dl-aprog?(x)


By

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Latex:
MrecSelectorWf  dlElim

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