Step
*
2
of Lemma
continuous-rnexp2
.....upcase.....
1. I : Interval
2. f : I ⟶ℝ
3. f[x] continuous for x ∈ I
4. n : ℤ
5. [%2] : 0 < n
6. f[x]^n - 1 continuous for x ∈ I
⊢ f[x]^n continuous for x ∈ I
BY
{ (Assert f[x]^n - 1 * f[x] continuous for x ∈ I BY
(ProveRealContinuous THEN Auto)) }
1
1. I : Interval
2. f : I ⟶ℝ
3. f[x] continuous for x ∈ I
4. n : ℤ
5. [%2] : 0 < n
6. f[x]^n - 1 continuous for x ∈ I
7. f[x]^n - 1 * f[x] continuous for x ∈ I
⊢ f[x]^n continuous for x ∈ I
Latex:
Latex:
.....upcase.....
1. I : Interval
2. f : I {}\mrightarrow{}\mBbbR{}
3. f[x] continuous for x \mmember{} I
4. n : \mBbbZ{}
5. [\%2] : 0 < n
6. f[x]\^{}n - 1 continuous for x \mmember{} I
\mvdash{} f[x]\^{}n continuous for x \mmember{} I
By
Latex:
(Assert f[x]\^{}n - 1 * f[x] continuous for x \mmember{} I BY
(ProveRealContinuous THEN Auto))
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