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Step * of Lemma geo-non-parallel_wf

∀[g:EuclideanParPlane]. ∀[l:Line]. ∀[L:l,m:Line//l || m].  (geo-non-parallel(g;l;L) ∈ ℙ)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[g:EuclideanParPlane].  \mforall{}[l:Line].  \mforall{}[L:l,m:Line//l  ||  m].    (geo-non-parallel(g;l;L)  \mmember{}  \mBbbP{})


By

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Latex:
ProveWfLemma

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