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Step * of Lemma pgeo-unique_wf

∀g:ProjectivePlaneStructure. ∀l,m:Line. ∀p,q:Point.  (unique(lm,pq) ∈ ℙ)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}g:ProjectivePlaneStructure.  \mforall{}l,m:Line.  \mforall{}p,q:Point.    (unique(lm,pq)  \mmember{}  \mBbbP{})


By

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Latex:
ProveWfLemma

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