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Step * of Lemma lattice-join_wf

∀[l:LatticeStructure]. ∀[a,b:Point(l)].  (a ∨ b ∈ Point(l))
BY
{ (ProveWfLemma THEN DRecord 1 THEN Auto) }

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Latex:

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Latex:
\mforall{}[l:LatticeStructure].  \mforall{}[a,b:Point(l)].    (a  \mvee{}  b  \mmember{}  Point(l))


By

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Latex:
(ProveWfLemma  THEN  DRecord  1  THEN  Auto)

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