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Step * of Lemma dl-or_wf

∀[x1,x:Prop].  (x1 ∨ x ∈ Prop)
BY
{ MrecConstructorWf }

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Latex:

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Latex:
\mforall{}[x1,x:Prop].    (x1  \mvee{}  x  \mmember{}  Prop)


By

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Latex:
MrecConstructorWf

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