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Step * of Lemma sq_stable__ip-triangle

∀rv:InnerProductSpace. ∀a,b,c:Point.  SqStable(Δ(a;b;c))
BY
{ (Auto THEN Unfold `ip-triangle` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}rv:InnerProductSpace.  \mforall{}a,b,c:Point.    SqStable(\mDelta{}(a;b;c))


By

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Latex:
(Auto  THEN  Unfold  `ip-triangle`  0  THEN  Auto)

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