Step * 1 of Lemma dist-lemma-lt2

.....wf..... 
1. EuclideanPlane
2. Point
3. Point
4. Point
5. Point
6. Point
7. Point
8. |ef| < |ab| |cd|
⊢ |ef| ∈ {u:Point| |ab| |cd| ≠ u} 
BY
(RWO "geo-lt-iff-strict-between-points" (-1) THEN Auto) }


Latex:


Latex:
.....wf..... 
1.  g  :  EuclideanPlane
2.  a  :  Point
3.  b  :  Point
4.  c  :  Point
5.  d  :  Point
6.  e  :  Point
7.  f  :  Point
8.  |ef|  <  |ab|  +  |cd|
\mvdash{}  |ef|  \mmember{}  \{u:Point|  |ab|  +  |cd|  \mneq{}  u\} 


By


Latex:
(RWO  "geo-lt-iff-strict-between-points"  (-1)  THEN  Auto)




Home Index