Step
*
1
2
of Lemma
rmax-limit
1. x : ℕ ⟶ ℝ
2. y : ℕ ⟶ ℝ
3. a : ℝ
4. b : ℝ
5. k : ℕ+
6. N : ℕ
7. N1 : ℕ
8. n : ℕ
9. imax(N;N1) ≤ n
10. (N ≤ n) ∧ (N1 ≤ n)
11. |x[n] - a| ≤ (r1/r(k))
12. |y[n] - b| ≤ (r1/r(k))
13. |rmax(x[n];y[n]) - rmax(a;b)| ≤ rmax(|x[n] - a|;|y[n] - b|)
⊢ |rmax(x[n];y[n]) - rmax(a;b)| ≤ (r1/r(k))
BY
{ (RWO "-1" 0 THEN Auto THEN BLemma `rmax_lb` THEN Auto) }
Latex:
Latex:
1. x : \mBbbN{} {}\mrightarrow{} \mBbbR{}
2. y : \mBbbN{} {}\mrightarrow{} \mBbbR{}
3. a : \mBbbR{}
4. b : \mBbbR{}
5. k : \mBbbN{}\msupplus{}
6. N : \mBbbN{}
7. N1 : \mBbbN{}
8. n : \mBbbN{}
9. imax(N;N1) \mleq{} n
10. (N \mleq{} n) \mwedge{} (N1 \mleq{} n)
11. |x[n] - a| \mleq{} (r1/r(k))
12. |y[n] - b| \mleq{} (r1/r(k))
13. |rmax(x[n];y[n]) - rmax(a;b)| \mleq{} rmax(|x[n] - a|;|y[n] - b|)
\mvdash{} |rmax(x[n];y[n]) - rmax(a;b)| \mleq{} (r1/r(k))
By
Latex:
(RWO "-1" 0 THEN Auto THEN BLemma `rmax\_lb` THEN Auto)
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