Step
*
2
of Lemma
real-vec-norm-eq-iff
1. n : ℕ
2. x : ℝ^n
3. r : ℝ
4. ||x|| = r
⊢ r0 ≤ r
BY
{ (RWO "-1<" 0 THEN Auto) }
Latex:
Latex:
1. n : \mBbbN{}
2. x : \mBbbR{}\^{}n
3. r : \mBbbR{}
4. ||x|| = r
\mvdash{} r0 \mleq{} r
By
Latex:
(RWO "-1<" 0 THEN Auto)
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