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Step * 1 of Lemma r2-basic-geo-axioms


∀a,b,c,d:Point.  (ab>cd ⇒ ab ≥ cd)
BY
{ (UnfoldGeoAbbreviations 0 THEN Auto) }

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Latex:

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Latex:

\mforall{}a,b,c,d:Point.    (ab>cd  {}\mRightarrow{}  ab  \mgeq{}  cd)


By

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Latex:
(UnfoldGeoAbbreviations  0  THEN  Auto)

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