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Step * of Lemma geo-not-not-colinear

∀e:BasicGeometry. ∀[a,b,c:Point].  (¬¬Colinear(a;b;c) ⇐⇒ ¬¬(a_b_c ∨ b_c_a ∨ c_a_b))
BY
{ ((UnivCD THENA Auto) THEN RWO  "geo-not-colinear<" 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}e:BasicGeometry.  \mforall{}[a,b,c:Point].    (\mneg{}\mneg{}Colinear(a;b;c)  \mLeftarrow{}{}\mRightarrow{}  \mneg{}\mneg{}(a\_b\_c  \mvee{}  b\_c\_a  \mvee{}  c\_a\_b))


By

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Latex:
((UnivCD  THENA  Auto)  THEN  RWO    "geo-not-colinear<"  0  THEN  Auto)

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