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Step * of Lemma real-vec-add-cancel

∀[n:ℕ]. ∀[p,a,b:ℝ^n].  req-vec(n;a;b) supposing req-vec(n;p + a;p + b)
BY
{ (Auto THEN RepeatFor 2 (ParallelLast) THEN RepUR ``real-vec-add`` -1 THEN Auto) }

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Latex:

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Latex:
\mforall{}[n:\mBbbN{}].  \mforall{}[p,a,b:\mBbbR{}\^{}n].    req-vec(n;a;b)  supposing  req-vec(n;p  +  a;p  +  b)


By

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Latex:
(Auto  THEN  RepeatFor  2  (ParallelLast)  THEN  RepUR  ``real-vec-add``  -1  THEN  Auto)

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