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Step * of Lemma proj-line-sep_wf

∀[e:EuclideanParPlane]. ∀[l,m:Line?].  (proj-line-sep(e;l;m) ∈ ℙ)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[e:EuclideanParPlane].  \mforall{}[l,m:Line?].    (proj-line-sep(e;l;m)  \mmember{}  \mBbbP{})


By

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Latex:
ProveWfLemma

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