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Step * of Lemma csm-interval-join

∀[h,r,s:Top].  ((r ∨ s)h ~ (r)h ∨ (s)h)
BY
{ (Unfold `interval-join` 0 THEN CsmUnfolding THEN Auto) }

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Latex:

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Latex:
\mforall{}[h,r,s:Top].    ((r  \mvee{}  s)h  \msim{}  (r)h  \mvee{}  (s)h)


By

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Latex:
(Unfold  `interval-join`  0  THEN  CsmUnfolding  THEN  Auto)

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