Step * 1 1 1 of Lemma geo-zero-le


1. BasicGeometry
2. {p:Point| O_X_p} 
3. X ∈ Length
⊢ (X X ∈ Length) ∧ (v v ∈ Length) ∧ X_X_v
BY
}

1
1. BasicGeometry
2. {p:Point| O_X_p} 
3. X ∈ Length
⊢ X ∈ Length

2
1. BasicGeometry
2. {p:Point| O_X_p} 
3. X ∈ Length
⊢ (v v ∈ Length) ∧ X_X_v


Latex:


Latex:

1.  e  :  BasicGeometry
2.  v  :  \{p:Point|  O\_X\_p\} 
3.  X  \mmember{}  Length
\mvdash{}  (X  =  X)  \mwedge{}  (v  =  v)  \mwedge{}  X\_X\_v


By


Latex:
D  0




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