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Theorem monoord 12771
 Description: Ordering relation for a monotonic sequence, increasing case. (Contributed by NM, 13-Mar-2005.) (Revised by Mario Carneiro, 9-Feb-2014.)
Hypotheses
Ref Expression
monoord.1 (𝜑𝑁 ∈ (ℤ𝑀))
monoord.2 ((𝜑𝑘 ∈ (𝑀...𝑁)) → (𝐹𝑘) ∈ ℝ)
monoord.3 ((𝜑𝑘 ∈ (𝑀...(𝑁 − 1))) → (𝐹𝑘) ≤ (𝐹‘(𝑘 + 1)))
Assertion
Ref Expression
monoord (𝜑 → (𝐹𝑀) ≤ (𝐹𝑁))
Distinct variable groups:   𝑘,𝐹   𝑘,𝑀   𝑘,𝑁   𝜑,𝑘

Proof of Theorem monoord
Dummy variables 𝑛 𝑥 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 monoord.1 . . 3 (𝜑𝑁 ∈ (ℤ𝑀))
2 eluzfz2 12291 . . 3 (𝑁 ∈ (ℤ𝑀) → 𝑁 ∈ (𝑀...𝑁))
31, 2syl 17 . 2 (𝜑𝑁 ∈ (𝑀...𝑁))
4 eleq1 2686 . . . . . 6 (𝑥 = 𝑀 → (𝑥 ∈ (𝑀...𝑁) ↔ 𝑀 ∈ (𝑀...𝑁)))
5 fveq2 6148 . . . . . . 7 (𝑥 = 𝑀 → (𝐹𝑥) = (𝐹𝑀))
65breq2d 4625 . . . . . 6 (𝑥 = 𝑀 → ((𝐹𝑀) ≤ (𝐹𝑥) ↔ (𝐹𝑀) ≤ (𝐹𝑀)))
74, 6imbi12d 334 . . . . 5 (𝑥 = 𝑀 → ((𝑥 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑥)) ↔ (𝑀 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑀))))
87imbi2d 330 . . . 4 (𝑥 = 𝑀 → ((𝜑 → (𝑥 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑥))) ↔ (𝜑 → (𝑀 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑀)))))
9 eleq1 2686 . . . . . 6 (𝑥 = 𝑛 → (𝑥 ∈ (𝑀...𝑁) ↔ 𝑛 ∈ (𝑀...𝑁)))
10 fveq2 6148 . . . . . . 7 (𝑥 = 𝑛 → (𝐹𝑥) = (𝐹𝑛))
1110breq2d 4625 . . . . . 6 (𝑥 = 𝑛 → ((𝐹𝑀) ≤ (𝐹𝑥) ↔ (𝐹𝑀) ≤ (𝐹𝑛)))
129, 11imbi12d 334 . . . . 5 (𝑥 = 𝑛 → ((𝑥 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑥)) ↔ (𝑛 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑛))))
1312imbi2d 330 . . . 4 (𝑥 = 𝑛 → ((𝜑 → (𝑥 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑥))) ↔ (𝜑 → (𝑛 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑛)))))
14 eleq1 2686 . . . . . 6 (𝑥 = (𝑛 + 1) → (𝑥 ∈ (𝑀...𝑁) ↔ (𝑛 + 1) ∈ (𝑀...𝑁)))
15 fveq2 6148 . . . . . . 7 (𝑥 = (𝑛 + 1) → (𝐹𝑥) = (𝐹‘(𝑛 + 1)))
1615breq2d 4625 . . . . . 6 (𝑥 = (𝑛 + 1) → ((𝐹𝑀) ≤ (𝐹𝑥) ↔ (𝐹𝑀) ≤ (𝐹‘(𝑛 + 1))))
1714, 16imbi12d 334 . . . . 5 (𝑥 = (𝑛 + 1) → ((𝑥 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑥)) ↔ ((𝑛 + 1) ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹‘(𝑛 + 1)))))
1817imbi2d 330 . . . 4 (𝑥 = (𝑛 + 1) → ((𝜑 → (𝑥 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑥))) ↔ (𝜑 → ((𝑛 + 1) ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹‘(𝑛 + 1))))))
19 eleq1 2686 . . . . . 6 (𝑥 = 𝑁 → (𝑥 ∈ (𝑀...𝑁) ↔ 𝑁 ∈ (𝑀...𝑁)))
20 fveq2 6148 . . . . . . 7 (𝑥 = 𝑁 → (𝐹𝑥) = (𝐹𝑁))
2120breq2d 4625 . . . . . 6 (𝑥 = 𝑁 → ((𝐹𝑀) ≤ (𝐹𝑥) ↔ (𝐹𝑀) ≤ (𝐹𝑁)))
2219, 21imbi12d 334 . . . . 5 (𝑥 = 𝑁 → ((𝑥 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑥)) ↔ (𝑁 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑁))))
2322imbi2d 330 . . . 4 (𝑥 = 𝑁 → ((𝜑 → (𝑥 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑥))) ↔ (𝜑 → (𝑁 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑁)))))
24 eluzfz1 12290 . . . . . . . . 9 (𝑁 ∈ (ℤ𝑀) → 𝑀 ∈ (𝑀...𝑁))
251, 24syl 17 . . . . . . . 8 (𝜑𝑀 ∈ (𝑀...𝑁))
26 monoord.2 . . . . . . . . 9 ((𝜑𝑘 ∈ (𝑀...𝑁)) → (𝐹𝑘) ∈ ℝ)
2726ralrimiva 2960 . . . . . . . 8 (𝜑 → ∀𝑘 ∈ (𝑀...𝑁)(𝐹𝑘) ∈ ℝ)
28 fveq2 6148 . . . . . . . . . 10 (𝑘 = 𝑀 → (𝐹𝑘) = (𝐹𝑀))
2928eleq1d 2683 . . . . . . . . 9 (𝑘 = 𝑀 → ((𝐹𝑘) ∈ ℝ ↔ (𝐹𝑀) ∈ ℝ))
3029rspcv 3291 . . . . . . . 8 (𝑀 ∈ (𝑀...𝑁) → (∀𝑘 ∈ (𝑀...𝑁)(𝐹𝑘) ∈ ℝ → (𝐹𝑀) ∈ ℝ))
3125, 27, 30sylc 65 . . . . . . 7 (𝜑 → (𝐹𝑀) ∈ ℝ)
3231leidd 10538 . . . . . 6 (𝜑 → (𝐹𝑀) ≤ (𝐹𝑀))
3332a1d 25 . . . . 5 (𝜑 → (𝑀 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑀)))
3433a1i 11 . . . 4 (𝑀 ∈ ℤ → (𝜑 → (𝑀 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑀))))
35 simprl 793 . . . . . . . . . 10 ((𝜑 ∧ (𝑛 ∈ (ℤ𝑀) ∧ (𝑛 + 1) ∈ (𝑀...𝑁))) → 𝑛 ∈ (ℤ𝑀))
36 simprr 795 . . . . . . . . . 10 ((𝜑 ∧ (𝑛 ∈ (ℤ𝑀) ∧ (𝑛 + 1) ∈ (𝑀...𝑁))) → (𝑛 + 1) ∈ (𝑀...𝑁))
37 peano2fzr 12296 . . . . . . . . . 10 ((𝑛 ∈ (ℤ𝑀) ∧ (𝑛 + 1) ∈ (𝑀...𝑁)) → 𝑛 ∈ (𝑀...𝑁))
3835, 36, 37syl2anc 692 . . . . . . . . 9 ((𝜑 ∧ (𝑛 ∈ (ℤ𝑀) ∧ (𝑛 + 1) ∈ (𝑀...𝑁))) → 𝑛 ∈ (𝑀...𝑁))
3938expr 642 . . . . . . . 8 ((𝜑𝑛 ∈ (ℤ𝑀)) → ((𝑛 + 1) ∈ (𝑀...𝑁) → 𝑛 ∈ (𝑀...𝑁)))
4039imim1d 82 . . . . . . 7 ((𝜑𝑛 ∈ (ℤ𝑀)) → ((𝑛 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑛)) → ((𝑛 + 1) ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑛))))
41 eluzelz 11641 . . . . . . . . . . . . . 14 (𝑛 ∈ (ℤ𝑀) → 𝑛 ∈ ℤ)
4235, 41syl 17 . . . . . . . . . . . . 13 ((𝜑 ∧ (𝑛 ∈ (ℤ𝑀) ∧ (𝑛 + 1) ∈ (𝑀...𝑁))) → 𝑛 ∈ ℤ)
43 elfzuz3 12281 . . . . . . . . . . . . . 14 ((𝑛 + 1) ∈ (𝑀...𝑁) → 𝑁 ∈ (ℤ‘(𝑛 + 1)))
4436, 43syl 17 . . . . . . . . . . . . 13 ((𝜑 ∧ (𝑛 ∈ (ℤ𝑀) ∧ (𝑛 + 1) ∈ (𝑀...𝑁))) → 𝑁 ∈ (ℤ‘(𝑛 + 1)))
45 eluzp1m1 11655 . . . . . . . . . . . . 13 ((𝑛 ∈ ℤ ∧ 𝑁 ∈ (ℤ‘(𝑛 + 1))) → (𝑁 − 1) ∈ (ℤ𝑛))
4642, 44, 45syl2anc 692 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑛 ∈ (ℤ𝑀) ∧ (𝑛 + 1) ∈ (𝑀...𝑁))) → (𝑁 − 1) ∈ (ℤ𝑛))
47 elfzuzb 12278 . . . . . . . . . . . 12 (𝑛 ∈ (𝑀...(𝑁 − 1)) ↔ (𝑛 ∈ (ℤ𝑀) ∧ (𝑁 − 1) ∈ (ℤ𝑛)))
4835, 46, 47sylanbrc 697 . . . . . . . . . . 11 ((𝜑 ∧ (𝑛 ∈ (ℤ𝑀) ∧ (𝑛 + 1) ∈ (𝑀...𝑁))) → 𝑛 ∈ (𝑀...(𝑁 − 1)))
49 monoord.3 . . . . . . . . . . . . 13 ((𝜑𝑘 ∈ (𝑀...(𝑁 − 1))) → (𝐹𝑘) ≤ (𝐹‘(𝑘 + 1)))
5049ralrimiva 2960 . . . . . . . . . . . 12 (𝜑 → ∀𝑘 ∈ (𝑀...(𝑁 − 1))(𝐹𝑘) ≤ (𝐹‘(𝑘 + 1)))
5150adantr 481 . . . . . . . . . . 11 ((𝜑 ∧ (𝑛 ∈ (ℤ𝑀) ∧ (𝑛 + 1) ∈ (𝑀...𝑁))) → ∀𝑘 ∈ (𝑀...(𝑁 − 1))(𝐹𝑘) ≤ (𝐹‘(𝑘 + 1)))
52 fveq2 6148 . . . . . . . . . . . . 13 (𝑘 = 𝑛 → (𝐹𝑘) = (𝐹𝑛))
53 oveq1 6611 . . . . . . . . . . . . . 14 (𝑘 = 𝑛 → (𝑘 + 1) = (𝑛 + 1))
5453fveq2d 6152 . . . . . . . . . . . . 13 (𝑘 = 𝑛 → (𝐹‘(𝑘 + 1)) = (𝐹‘(𝑛 + 1)))
5552, 54breq12d 4626 . . . . . . . . . . . 12 (𝑘 = 𝑛 → ((𝐹𝑘) ≤ (𝐹‘(𝑘 + 1)) ↔ (𝐹𝑛) ≤ (𝐹‘(𝑛 + 1))))
5655rspcv 3291 . . . . . . . . . . 11 (𝑛 ∈ (𝑀...(𝑁 − 1)) → (∀𝑘 ∈ (𝑀...(𝑁 − 1))(𝐹𝑘) ≤ (𝐹‘(𝑘 + 1)) → (𝐹𝑛) ≤ (𝐹‘(𝑛 + 1))))
5748, 51, 56sylc 65 . . . . . . . . . 10 ((𝜑 ∧ (𝑛 ∈ (ℤ𝑀) ∧ (𝑛 + 1) ∈ (𝑀...𝑁))) → (𝐹𝑛) ≤ (𝐹‘(𝑛 + 1)))
5831adantr 481 . . . . . . . . . . 11 ((𝜑 ∧ (𝑛 ∈ (ℤ𝑀) ∧ (𝑛 + 1) ∈ (𝑀...𝑁))) → (𝐹𝑀) ∈ ℝ)
5927adantr 481 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑛 ∈ (ℤ𝑀) ∧ (𝑛 + 1) ∈ (𝑀...𝑁))) → ∀𝑘 ∈ (𝑀...𝑁)(𝐹𝑘) ∈ ℝ)
6052eleq1d 2683 . . . . . . . . . . . . 13 (𝑘 = 𝑛 → ((𝐹𝑘) ∈ ℝ ↔ (𝐹𝑛) ∈ ℝ))
6160rspcv 3291 . . . . . . . . . . . 12 (𝑛 ∈ (𝑀...𝑁) → (∀𝑘 ∈ (𝑀...𝑁)(𝐹𝑘) ∈ ℝ → (𝐹𝑛) ∈ ℝ))
6238, 59, 61sylc 65 . . . . . . . . . . 11 ((𝜑 ∧ (𝑛 ∈ (ℤ𝑀) ∧ (𝑛 + 1) ∈ (𝑀...𝑁))) → (𝐹𝑛) ∈ ℝ)
63 fveq2 6148 . . . . . . . . . . . . . 14 (𝑘 = (𝑛 + 1) → (𝐹𝑘) = (𝐹‘(𝑛 + 1)))
6463eleq1d 2683 . . . . . . . . . . . . 13 (𝑘 = (𝑛 + 1) → ((𝐹𝑘) ∈ ℝ ↔ (𝐹‘(𝑛 + 1)) ∈ ℝ))
6564rspcv 3291 . . . . . . . . . . . 12 ((𝑛 + 1) ∈ (𝑀...𝑁) → (∀𝑘 ∈ (𝑀...𝑁)(𝐹𝑘) ∈ ℝ → (𝐹‘(𝑛 + 1)) ∈ ℝ))
6636, 59, 65sylc 65 . . . . . . . . . . 11 ((𝜑 ∧ (𝑛 ∈ (ℤ𝑀) ∧ (𝑛 + 1) ∈ (𝑀...𝑁))) → (𝐹‘(𝑛 + 1)) ∈ ℝ)
67 letr 10075 . . . . . . . . . . 11 (((𝐹𝑀) ∈ ℝ ∧ (𝐹𝑛) ∈ ℝ ∧ (𝐹‘(𝑛 + 1)) ∈ ℝ) → (((𝐹𝑀) ≤ (𝐹𝑛) ∧ (𝐹𝑛) ≤ (𝐹‘(𝑛 + 1))) → (𝐹𝑀) ≤ (𝐹‘(𝑛 + 1))))
6858, 62, 66, 67syl3anc 1323 . . . . . . . . . 10 ((𝜑 ∧ (𝑛 ∈ (ℤ𝑀) ∧ (𝑛 + 1) ∈ (𝑀...𝑁))) → (((𝐹𝑀) ≤ (𝐹𝑛) ∧ (𝐹𝑛) ≤ (𝐹‘(𝑛 + 1))) → (𝐹𝑀) ≤ (𝐹‘(𝑛 + 1))))
6957, 68mpan2d 709 . . . . . . . . 9 ((𝜑 ∧ (𝑛 ∈ (ℤ𝑀) ∧ (𝑛 + 1) ∈ (𝑀...𝑁))) → ((𝐹𝑀) ≤ (𝐹𝑛) → (𝐹𝑀) ≤ (𝐹‘(𝑛 + 1))))
7069expr 642 . . . . . . . 8 ((𝜑𝑛 ∈ (ℤ𝑀)) → ((𝑛 + 1) ∈ (𝑀...𝑁) → ((𝐹𝑀) ≤ (𝐹𝑛) → (𝐹𝑀) ≤ (𝐹‘(𝑛 + 1)))))
7170a2d 29 . . . . . . 7 ((𝜑𝑛 ∈ (ℤ𝑀)) → (((𝑛 + 1) ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑛)) → ((𝑛 + 1) ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹‘(𝑛 + 1)))))
7240, 71syld 47 . . . . . 6 ((𝜑𝑛 ∈ (ℤ𝑀)) → ((𝑛 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑛)) → ((𝑛 + 1) ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹‘(𝑛 + 1)))))
7372expcom 451 . . . . 5 (𝑛 ∈ (ℤ𝑀) → (𝜑 → ((𝑛 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑛)) → ((𝑛 + 1) ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹‘(𝑛 + 1))))))
7473a2d 29 . . . 4 (𝑛 ∈ (ℤ𝑀) → ((𝜑 → (𝑛 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑛))) → (𝜑 → ((𝑛 + 1) ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹‘(𝑛 + 1))))))
758, 13, 18, 23, 34, 74uzind4 11690 . . 3 (𝑁 ∈ (ℤ𝑀) → (𝜑 → (𝑁 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑁))))
761, 75mpcom 38 . 2 (𝜑 → (𝑁 ∈ (𝑀...𝑁) → (𝐹𝑀) ≤ (𝐹𝑁)))
773, 76mpd 15 1 (𝜑 → (𝐹𝑀) ≤ (𝐹𝑁))
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ∧ wa 384   = wceq 1480   ∈ wcel 1987  ∀wral 2907   class class class wbr 4613  ‘cfv 5847  (class class class)co 6604  ℝcr 9879  1c1 9881   + caddc 9883   ≤ cle 10019   − cmin 10210  ℤcz 11321  ℤ≥cuz 11631  ...cfz 12268 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1719  ax-4 1734  ax-5 1836  ax-6 1885  ax-7 1932  ax-8 1989  ax-9 1996  ax-10 2016  ax-11 2031  ax-12 2044  ax-13 2245  ax-ext 2601  ax-sep 4741  ax-nul 4749  ax-pow 4803  ax-pr 4867  ax-un 6902  ax-cnex 9936  ax-resscn 9937  ax-1cn 9938  ax-icn 9939  ax-addcl 9940  ax-addrcl 9941  ax-mulcl 9942  ax-mulrcl 9943  ax-mulcom 9944  ax-addass 9945  ax-mulass 9946  ax-distr 9947  ax-i2m1 9948  ax-1ne0 9949  ax-1rid 9950  ax-rnegex 9951  ax-rrecex 9952  ax-cnre 9953  ax-pre-lttri 9954  ax-pre-lttrn 9955  ax-pre-ltadd 9956  ax-pre-mulgt0 9957 This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-tru 1483  df-ex 1702  df-nf 1707  df-sb 1878  df-eu 2473  df-mo 2474  df-clab 2608  df-cleq 2614  df-clel 2617  df-nfc 2750  df-ne 2791  df-nel 2894  df-ral 2912  df-rex 2913  df-reu 2914  df-rab 2916  df-v 3188  df-sbc 3418  df-csb 3515  df-dif 3558  df-un 3560  df-in 3562  df-ss 3569  df-pss 3571  df-nul 3892  df-if 4059  df-pw 4132  df-sn 4149  df-pr 4151  df-tp 4153  df-op 4155  df-uni 4403  df-iun 4487  df-br 4614  df-opab 4674  df-mpt 4675  df-tr 4713  df-eprel 4985  df-id 4989  df-po 4995  df-so 4996  df-fr 5033  df-we 5035  df-xp 5080  df-rel 5081  df-cnv 5082  df-co 5083  df-dm 5084  df-rn 5085  df-res 5086  df-ima 5087  df-pred 5639  df-ord 5685  df-on 5686  df-lim 5687  df-suc 5688  df-iota 5810  df-fun 5849  df-fn 5850  df-f 5851  df-f1 5852  df-fo 5853  df-f1o 5854  df-fv 5855  df-riota 6565  df-ov 6607  df-oprab 6608  df-mpt2 6609  df-om 7013  df-1st 7113  df-2nd 7114  df-wrecs 7352  df-recs 7413  df-rdg 7451  df-er 7687  df-en 7900  df-dom 7901  df-sdom 7902  df-pnf 10020  df-mnf 10021  df-xr 10022  df-ltxr 10023  df-le 10024  df-sub 10212  df-neg 10213  df-nn 10965  df-n0 11237  df-z 11322  df-uz 11632  df-fz 12269 This theorem is referenced by:  monoord2  12772  sermono  12773  climub  14326  isercolllem1  14329  climsup  14334  dvfsumlem3  23695  emcllem7  24628  lmdvg  29778  monoords  38972  iblspltprt  39493  itgspltprt  39499  fourierdlem11  39639  fourierdlem12  39640  fourierdlem15  39643  fourierdlem50  39677  fourierdlem79  39706
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