Step * of Lemma geo-midpoint-symmetry

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e:BasicGeometry. ∀m,a,b:Point.  (a=m=b  b=m=a)
BY
(Unfold `geo-midpoint` THEN Auto) }

1
1. BasicGeometry
2. Point
3. Point
4. Point
5. B(amb)
6. am ≅ mb
7. B(bma)
⊢ bm ≅ ma


Latex:


Latex:
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\mforall{}e:BasicGeometry.  \mforall{}m,a,b:Point.    (a=m=b  {}\mRightarrow{}  b=m=a)


By


Latex:
(Unfold  `geo-midpoint`  0  THEN  Auto)




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