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Step * of Lemma is-face_wf

∀[X:CubicalSet]. ∀[I:Cname List]. ∀[bx:X(I)]. ∀[f:I-face(X;I)].  (is-face(X;I;bx;f) ∈ ℙ)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[X:CubicalSet].  \mforall{}[I:Cname  List].  \mforall{}[bx:X(I)].  \mforall{}[f:I-face(X;I)].    (is-face(X;I;bx;f)  \mmember{}  \mBbbP{})


By

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Latex:
ProveWfLemma

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