Step * 1 of Lemma geo-add-length-implies-eq2


1. BasicGeometry
2. Length
3. Point
4. Point
5. |ab| |ab| ∈ Length
6. |ab| |ab| 0 ∈ Length
⊢ a ≡ b
BY
(BLemma `geo-zero-length-iff`  THEN Auto) }

1
1. BasicGeometry
2. Length
3. Point
4. Point
5. |ab| |ab| ∈ Length
6. |ab| |ab| 0 ∈ Length
⊢ |ab| 0 ∈ Length


Latex:


Latex:

1.  e  :  BasicGeometry
2.  x  :  Length
3.  a  :  Point
4.  b  :  Point
5.  x  =  x  +  |ab|  +  |ab|
6.  |ab|  +  |ab|  =  0
\mvdash{}  a  \mequiv{}  b


By


Latex:
(BLemma  `geo-zero-length-iff`    THEN  Auto)




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