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Step * of Lemma lattice-join-1

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∀[l:BoundedLattice]. ∀[x:Point(l)].  (1 ∨ x = 1 ∈ Point(l))
BY
{ ((InstLemma `le-lattice-1` [] THEN RepeatFor 2 (ParallelLast')) THEN RWO "lattice-le-iff" (-1) THEN Auto) }

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Latex:

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Latex:
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\mforall{}[l:BoundedLattice].  \mforall{}[x:Point(l)].    (1  \mvee{}  x  =  1)


By

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Latex:
((InstLemma  `le-lattice-1`  []  THEN  RepeatFor  2  (ParallelLast'))
  THEN  RWO  "lattice-le-iff"  (-1)
  THEN  Auto)

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