Step * 1 of Lemma Mid_perm


1. BasicGeometry
2. Point
3. Point
4. Point
5. B=A=C
6. B=A=C
⊢ C=A=B
BY
(((Auto THEN InstLemma `geo-midpoint-symmetry` [⌜e⌝;⌜A⌝;⌜B⌝;⌜C⌝]⋅THENA Auto) THEN Auto) }


Latex:


Latex:

1.  e  :  BasicGeometry
2.  A  :  Point
3.  B  :  Point
4.  C  :  Point
5.  B=A=C
6.  B=A=C
\mvdash{}  C=A=B


By


Latex:
(((Auto  THEN  InstLemma  `geo-midpoint-symmetry`  [\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}A\mkleeneclose{};\mkleeneopen{}B\mkleeneclose{};\mkleeneopen{}C\mkleeneclose{}]\mcdot{})  THENA  Auto)  THEN  Auto)




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