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Step * of Lemma test5

∀[A:Type]. ∀[B:A ⟶ Type]. ∀[f:a:A ⟶ B[a]]. ∀[x:A].  (f x ∈ B[x])
BY
{ applywf_tac }

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Latex:

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Latex:
\mforall{}[A:Type].  \mforall{}[B:A  {}\mrightarrow{}  Type].  \mforall{}[f:a:A  {}\mrightarrow{}  B[a]].  \mforall{}[x:A].    (f  x  \mmember{}  B[x])


By

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Latex:
applywf\_tac

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