Step
*
1
1
2
of Lemma
real-vec-dist-identity
1. n : ℕ
2. x : ℝ^n
3. y : ℝ^n
4. x - y⋅x - y = r0
5. req-vec(n;x - y;λi.r0)
⊢ req-vec(n;x;y)
BY
{ (RepeatFor 2 (ParallelLast) THEN RepUR ``real-vec-sub`` -1 THEN nRAdd ⌜y i⌝ (-1)⋅ THEN Auto) }
Latex:
Latex:
1. n : \mBbbN{}
2. x : \mBbbR{}\^{}n
3. y : \mBbbR{}\^{}n
4. x - y\mcdot{}x - y = r0
5. req-vec(n;x - y;\mlambda{}i.r0)
\mvdash{} req-vec(n;x;y)
By
Latex:
(RepeatFor 2 (ParallelLast) THEN RepUR ``real-vec-sub`` -1 THEN nRAdd \mkleeneopen{}y i\mkleeneclose{} (-1)\mcdot{} THEN Auto)
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