Step
*
2
of Lemma
rv-pos-angle_functionality
1. n : ℕ
2. a1 : ℝ^n
3. b1 : ℝ^n
4. c1 : ℝ^n
5. a2 : ℝ^n
6. b2 : ℝ^n
7. c2 : ℝ^n
8. req-vec(n;a1;a2)
9. req-vec(n;b1;b2)
10. req-vec(n;c1;c2)
11. |a2 - b2⋅c2 - b2| < (||a2 - b2|| * ||c2 - b2||)
⊢ |a1 - b1⋅c1 - b1| < (||a1 - b1|| * ||c1 - b1||)
BY
{ (RWO "-4 -3 -2" 0 THEN Auto) }
Latex:
Latex:
1. n : \mBbbN{}
2. a1 : \mBbbR{}\^{}n
3. b1 : \mBbbR{}\^{}n
4. c1 : \mBbbR{}\^{}n
5. a2 : \mBbbR{}\^{}n
6. b2 : \mBbbR{}\^{}n
7. c2 : \mBbbR{}\^{}n
8. req-vec(n;a1;a2)
9. req-vec(n;b1;b2)
10. req-vec(n;c1;c2)
11. |a2 - b2\mcdot{}c2 - b2| < (||a2 - b2|| * ||c2 - b2||)
\mvdash{} |a1 - b1\mcdot{}c1 - b1| < (||a1 - b1|| * ||c1 - b1||)
By
Latex:
(RWO "-4 -3 -2" 0 THEN Auto)
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