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Step * of Lemma fl-morph-1

∀[A,B:fset(ℕ)]. ∀[g:A ⟶ B].  ((1)<g> = 1 ∈ Point(face_lattice(A)))
BY
{ (Auto THEN GenConclAtAddr [2;1] THEN DVar `v' THEN Auto) }

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Latex:

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Latex:
\mforall{}[A,B:fset(\mBbbN{})].  \mforall{}[g:A  {}\mrightarrow{}  B].    ((1)<g>  =  1)


By

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Latex:
(Auto  THEN  GenConclAtAddr  [2;1]  THEN  DVar  `v'  THEN  Auto)

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