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Step * of Lemma triangle-axiom1_wf

∀g:BasicProjectivePlane. (triangle-axiom1(g) ∈ ℙ)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}g:BasicProjectivePlane.  (triangle-axiom1(g)  \mmember{}  \mBbbP{})


By

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Latex:
ProveWfLemma

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