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Step * of Lemma rat2real-qdiv2

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∀a:ℤ. ∀b:ℤ-o.  (rat2real((a/b)) = (r(a)/r(b)))
BY
{ (Auto THEN (Subst' r(a) ~ rat2real(a) 0 THENA RepUR ``rat2real`` 0) THEN Auto) }

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Latex:

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Latex:
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\mforall{}a:\mBbbZ{}.  \mforall{}b:\mBbbZ{}\msupminus{}\msupzero{}.    (rat2real((a/b))  =  (r(a)/r(b)))


By

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Latex:
(Auto  THEN  (Subst'  r(a)  \msim{}  rat2real(a)  0  THENA  RepUR  ``rat2real``  0)  THEN  Auto)

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