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Step * of Lemma geo-colinear-symmetry

∀[e:BasicGeometry]. ∀[a,b,c:Point].
  {Colinear(b;c;a) ∧ Colinear(c;a;b) ∧ Colinear(c;b;a) ∧ Colinear(a;c;b) ∧ Colinear(b;a;c)} supposing Colinear(a;b;c)
BY
{ (Auto THEN D 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[e:BasicGeometry].  \mforall{}[a,b,c:Point].
    \{Colinear(b;c;a)  \mwedge{}  Colinear(c;a;b)  \mwedge{}  Colinear(c;b;a)  \mwedge{}  Colinear(a;c;b)  \mwedge{}  Colinear(b;a;c)\} 
    supposing  Colinear(a;b;c)


By

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Latex:
(Auto  THEN  D  0  THEN  Auto)

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