Step
*
of Lemma
between-preserves-left-5
∀e:EuclideanPlane. ∀A,B,C,V:Point.  (C leftof AB 
⇒ B ≠ V 
⇒ A_V_B 
⇒ C leftof VB)
BY
{ (Auto THEN GeometryMasterTactic true 2) }
Latex:
Latex:
\mforall{}e:EuclideanPlane.  \mforall{}A,B,C,V:Point.    (C  leftof  AB  {}\mRightarrow{}  B  \mneq{}  V  {}\mRightarrow{}  A\_V\_B  {}\mRightarrow{}  C  leftof  VB)
By
Latex:
(Auto  THEN  GeometryMasterTactic  true  2)
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