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Step * of Lemma A-face-name_wf

∀[X:CubicalSet]. ∀[A:{X ⊢ _}]. ∀[I:Cname List]. ∀[alpha:X(I)]. ∀[f:A-face(X;A;I;alpha)].
  (A-face-name(f) ∈ nameset(I) × ℕ2)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[X:CubicalSet].  \mforall{}[A:\{X  \mvdash{}  \_\}].  \mforall{}[I:Cname  List].  \mforall{}[alpha:X(I)].  \mforall{}[f:A-face(X;A;I;alpha)].
    (A-face-name(f)  \mmember{}  nameset(I)  \mtimes{}  \mBbbN{}2)


By

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Latex:
ProveWfLemma

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