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Step * of Lemma ml_apply_wf

∀[A,B:Type]. ∀[f:A ⟶ B]. ∀[x:A].  f(x) ∈ B supposing valueall-type(A)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[A,B:Type].  \mforall{}[f:A  {}\mrightarrow{}  B].  \mforall{}[x:A].    f(x)  \mmember{}  B  supposing  valueall-type(A)


By

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Latex:
ProveWfLemma

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