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Step * of Lemma geo-seg-proper_wf

∀[e:EuclideanPlaneStructure]. ∀[s:geo-segment(e)].  (geo-seg-proper(e; s) ∈ ℙ)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[e:EuclideanPlaneStructure].  \mforall{}[s:geo-segment(e)].    (geo-seg-proper(e;  s)  \mmember{}  \mBbbP{})


By

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Latex:
ProveWfLemma

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