Step * of Lemma right-angle-trivial

e:BasicGeometry. ∀a,b:Point.  Rabb
BY
(Auto THEN THEN Auto) }

1
1. BasicGeometry
2. Point
3. Point
4. c' Point
5. c'=b=b
⊢ ab ≅ ac'


Latex:


Latex:
\mforall{}e:BasicGeometry.  \mforall{}a,b:Point.    Rabb


By


Latex:
(Auto  THEN  D  0  THEN  Auto)




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