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Step * of Lemma pgeo-join_wf

∀g:ProjectivePlaneStructure. ∀p,q:Point. ∀s:p ≠ q.  (p ∨ q ∈ {L:Line| p I L ∧ q I L} )
BY
{ ((ProveWfLemma THEN D 1) THEN Auto) }

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Latex:

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Latex:
\mforall{}g:ProjectivePlaneStructure.  \mforall{}p,q:Point.  \mforall{}s:p  \mneq{}  q.    (p  \mvee{}  q  \mmember{}  \{L:Line|  p  I  L  \mwedge{}  q  I  L\}  )


By

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Latex:
((ProveWfLemma  THEN  D  1)  THEN  Auto)

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