---

Step * of Lemma eu-add-length-zero3

∀[e:EuclideanPlane]. ∀[x:{p:Point| O_X_p} ]. ∀[a:Point].  (|aa| + x = x ∈ {p:Point| O_X_p} )
BY
{ (InstLemma `eu-add-length-zero2` [] THEN RepeatFor 3 (ParallelLast') THEN RWO "eu-add-length-comm" 0 THEN Auto) }

---

Latex:

---

Latex:
\mforall{}[e:EuclideanPlane].  \mforall{}[x:\{p:Point|  O\_X\_p\}  ].  \mforall{}[a:Point].    (|aa|  +  x  =  x)


By

---

Latex:
(InstLemma  `eu-add-length-zero2`  []
  THEN  RepeatFor  3  (ParallelLast')
  THEN  RWO  "eu-add-length-comm"  0
  THEN  Auto)

---

Home Index