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Step * of Lemma fl0_wf

∀[I:fset(ℕ)]. ∀[x:names(I)].  ((x=0) ∈ Point(face_lattice(I)))
BY
{ (Unfold `face_lattice` 0 THEN ProveWfLemma) }

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Latex:

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Latex:
\mforall{}[I:fset(\mBbbN{})].  \mforall{}[x:names(I)].    ((x=0)  \mmember{}  Point(face\_lattice(I)))


By

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Latex:
(Unfold  `face\_lattice`  0  THEN  ProveWfLemma)

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