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Step * of Lemma rv-pos-angle_wf

∀[n:ℕ]. ∀[a,b,c:ℝ^n].  (rv-pos-angle(n;a;b;c) ∈ ℙ)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[n:\mBbbN{}].  \mforall{}[a,b,c:\mBbbR{}\^{}n].    (rv-pos-angle(n;a;b;c)  \mmember{}  \mBbbP{})


By

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Latex:
ProveWfLemma

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