Step * 1 of Lemma geo-le-null-segment


1. BasicGeometry
2. Length
3. Point
4. {p:Point| O_X_p}  ⊆Length
5. p ≤ |aa|
6. X ∈ Length
⊢ X ∈ Length
BY
(RWO "geo-length-null-segment" (-2) THEN Auto) }

1
1. BasicGeometry
2. Length
3. Point
4. {p:Point| O_X_p}  ⊆Length
5. p ≤ X
6. X ∈ Length
⊢ X ∈ Length


Latex:


Latex:

1.  e  :  BasicGeometry
2.  p  :  Length
3.  a  :  Point
4.  \{p:Point|  O\_X\_p\}    \msubseteq{}r  Length
5.  p  \mleq{}  |aa|
6.  X  \mmember{}  Length
\mvdash{}  p  =  X


By


Latex:
(RWO  "geo-length-null-segment"  (-2)  THEN  Auto)




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