Step
*
1
of Lemma
real-vec-dist-between-2
1. n : ℕ
2. a : ℝ^n
3. c : ℝ^n
4. t : ℝ
⊢ d(t*a + r1 - t*c;c) = (|t| * d(a;c))
BY
{ Unfold `real-vec-dist` 0 }
1
1. n : ℕ
2. a : ℝ^n
3. c : ℝ^n
4. t : ℝ
⊢ ||t*a + r1 - t*c - c|| = (|t| * ||a - c||)
Latex:
Latex:
1. n : \mBbbN{}
2. a : \mBbbR{}\^{}n
3. c : \mBbbR{}\^{}n
4. t : \mBbbR{}
\mvdash{} d(t*a + r1 - t*c;c) = (|t| * d(a;c))
By
Latex:
Unfold `real-vec-dist` 0
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