Step * of Lemma basic-geo-not-left-and-right

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g:EuclideanPlaneStructure. (BasicGeometryAxioms(g)  (∀a,b,c:Point.  (a leftof bc  leftof cb))))
BY
(Auto THEN (D THENA Auto)) }

1
1. EuclideanPlaneStructure
2. BasicGeometryAxioms(g)
3. Point
4. Point
5. Point
6. leftof bc
7. leftof cb
⊢ False


Latex:


Latex:
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\mforall{}g:EuclideanPlaneStructure
    (BasicGeometryAxioms(g)  {}\mRightarrow{}  (\mforall{}a,b,c:Point.    (a  leftof  bc  {}\mRightarrow{}  (\mneg{}a  leftof  cb))))


By


Latex:
(Auto  THEN  (D  0  THENA  Auto))




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