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Step * of Lemma geo-between-implies-colinear3

∀e:BasicGeometry. ∀[a,b,c:Point].  Colinear(a;b;c) supposing b_c_a
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(a;b;c)  supposing  b\_c\_a


By

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Latex:
(Auto  THEN  D  0  THEN  Auto)

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