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Step * of Lemma eu-bisect-line_wf

∀[e:EuclideanPlane]. ∀[a,b:Point].  (eu-bisect-line(e;a;b) ∈ ℙ)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[e:EuclideanPlane].  \mforall{}[a,b:Point].    (eu-bisect-line(e;a;b)  \mmember{}  \mBbbP{})


By

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Latex:
ProveWfLemma

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