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Step * of Lemma rat-interval-intersection-idemp

∀[I:ℚInterval]. (I ⋂ I = I ∈ ℚInterval)
BY
{ (Auto THEN D 1 THEN RepUR ``rat-interval-intersection`` 0 THEN EqCDA THEN Auto) }

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Latex:

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Latex:
\mforall{}[I:\mBbbQ{}Interval].  (I  \mcap{}  I  =  I)


By

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Latex:
(Auto  THEN  D  1  THEN  RepUR  ``rat-interval-intersection``  0  THEN  EqCDA  THEN  Auto)

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