Step
*
2
of Lemma
firstn-partition
1. I : Interval
2. icompact(I)
3. a : ℝ
4. p : ℝ List
5. frs-non-dec(p)
6. i : ℕ||p||
7. a = p[i]
8. p1 : ℝ List
9. left-endpoint(I) ≤ p[0]
10. last(p) ≤ right-endpoint(I)
⊢ left-endpoint(I) ≤ a
BY
{ (BLemma `rccint-icompact` THEN Auto THEN RWO "frs-non-dec-sorted-by" 5⋅ THEN Auto) }
1
1. I : Interval
2. icompact(I)
3. a : ℝ
4. p : ℝ List
5. sorted-by(λx,y. (x ≤ y);p)
6. i : ℕ||p||
7. a = p[i]
8. p1 : ℝ List
9. left-endpoint(I) ≤ p[0]
10. last(p) ≤ right-endpoint(I)
⊢ left-endpoint(I) ≤ a
Latex:
Latex:
1. I : Interval
2. icompact(I)
3. a : \mBbbR{}
4. p : \mBbbR{} List
5. frs-non-dec(p)
6. i : \mBbbN{}||p||
7. a = p[i]
8. p1 : \mBbbR{} List
9. left-endpoint(I) \mleq{} p[0]
10. last(p) \mleq{} right-endpoint(I)
\mvdash{} left-endpoint(I) \mleq{} a
By
Latex:
(BLemma `rccint-icompact` THEN Auto THEN RWO "frs-non-dec-sorted-by" 5\mcdot{} THEN Auto)
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