Step
*
of Lemma
geo-seg-of_wf
∀[e:BasicGeometry]. ∀[sp:geo-proper-segment(e)].  (geo-seg-of(sp) ∈ geo-segment(e))
BY
{ ProveWfLemma }
Latex:
Latex:
\mforall{}[e:BasicGeometry].  \mforall{}[sp:geo-proper-segment(e)].    (geo-seg-of(sp)  \mmember{}  geo-segment(e))
By
Latex:
ProveWfLemma
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