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Step * of Lemma geo-not-lt-to-le

∀g:EuclideanPlane. ∀a,b,c,d,e,f:Point.  ((¬|ef| < |ab| + |cd|) ⇒ |ab| + |cd| ≤ |ef|)
BY
{ (RWO "not-geo-lt" 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}g:EuclideanPlane.  \mforall{}a,b,c,d,e,f:Point.    ((\mneg{}|ef|  <  |ab|  +  |cd|)  {}\mRightarrow{}  |ab|  +  |cd|  \mleq{}  |ef|)


By

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Latex:
(RWO  "not-geo-lt"  0  THEN  Auto)

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