Step
*
1
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. left-endpoint(I) ≤ p[0]
9. last(p) ≤ right-endpoint(I)
10. 0 < ||firstn(i;p)||
⊢ left-endpoint([left-endpoint(I), a]) ≤ firstn(i;p)[0]
BY
{ (NthHypSq (-3)
THEN EqCD
THEN Try ((RWO "select-firstn" 0 THEN Auto))
THEN RepUR ``left-endpoint endpoints`` 0
THEN Auto) }
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. left-endpoint(I) \mleq{} p[0]
9. last(p) \mleq{} right-endpoint(I)
10. 0 < ||firstn(i;p)||
\mvdash{} left-endpoint([left-endpoint(I), a]) \mleq{} firstn(i;p)[0]
By
Latex:
(NthHypSq (-3)
THEN EqCD
THEN Try ((RWO "select-firstn" 0 THEN Auto))
THEN RepUR ``left-endpoint endpoints`` 0
THEN Auto)
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