Step
*
1
of Lemma
nearby-increasing-partition
1. I : Interval
2. icompact(I)
3. p : ℝ List
4. [%4] : partitions(I;p)
5. e : {e:ℝ| r0 < e}
6. k : ℕ+
7. (r1/r(k)) < e
8. left-endpoint(I) < right-endpoint(I)
⊢ ∃q:partition(I). (frs-increasing(q) ∧ nearby-partitions(e;p;q))
BY
{ (BoolCase ⌜null(p)⌝⋅ THENA Auto) }
1
1. I : Interval
2. icompact(I)
3. p : ℝ List
4. [%4] : partitions(I;p)
5. e : {e:ℝ| r0 < e}
6. k : ℕ+
7. (r1/r(k)) < e
8. left-endpoint(I) < right-endpoint(I)
9. p = [] ∈ (ℝ List)
⊢ ∃q:partition(I). (frs-increasing(q) ∧ nearby-partitions(e;p;q))
2
1. I : Interval
2. icompact(I)
3. p : ℝ List
4. ¬(p = [] ∈ (ℝ List))
5. [%4] : partitions(I;p)
6. e : {e:ℝ| r0 < e}
7. k : ℕ+
8. (r1/r(k)) < e
9. left-endpoint(I) < right-endpoint(I)
⊢ ∃q:partition(I). (frs-increasing(q) ∧ nearby-partitions(e;p;q))
Latex:
Latex:
1. I : Interval
2. icompact(I)
3. p : \mBbbR{} List
4. [\%4] : partitions(I;p)
5. e : \{e:\mBbbR{}| r0 < e\}
6. k : \mBbbN{}\msupplus{}
7. (r1/r(k)) < e
8. left-endpoint(I) < right-endpoint(I)
\mvdash{} \mexists{}q:partition(I). (frs-increasing(q) \mwedge{} nearby-partitions(e;p;q))
By
Latex:
(BoolCase \mkleeneopen{}null(p)\mkleeneclose{}\mcdot{} THENA Auto)
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