Step
*
1
of Lemma
Riemann-integral-single
1. a : ℝ
2. b : ℝ
3. a = b
4. f : {f:[a, b] ⟶ℝ| ifun(f;[a, b])}
5. |∫ f[x] dx on [a, b]| ≤ r0
⊢ ∫ f[x] dx on [a, b] = r0
BY
{ (RWO "rabs-as-rmax" (-1) THENA Auto) }
1
1. a : ℝ
2. b : ℝ
3. a = b
4. f : {f:[a, b] ⟶ℝ| ifun(f;[a, b])}
5. rmax(∫ f[x] dx on [a, b];-(∫ f[x] dx on [a, b])) ≤ r0
⊢ ∫ f[x] dx on [a, b] = r0
Latex:
Latex:
1. a : \mBbbR{}
2. b : \mBbbR{}
3. a = b
4. f : \{f:[a, b] {}\mrightarrow{}\mBbbR{}| ifun(f;[a, b])\}
5. |\mint{} f[x] dx on [a, b]| \mleq{} r0
\mvdash{} \mint{} f[x] dx on [a, b] = r0
By
Latex:
(RWO "rabs-as-rmax" (-1) THENA Auto)
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