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Mirrors > Home > ILE Home > Th. List > serile | GIF version |
Description: Comparison of partial sums of two infinite series of reals. (Contributed by Jim Kingdon, 22-Aug-2021.) |
Ref | Expression |
---|---|
serige0.1 | ⊢ (𝜑 → 𝑁 ∈ (ℤ≥‘𝑀)) |
serige0.2 | ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝐹‘𝑘) ∈ ℝ) |
serile.3 | ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝐺‘𝑘) ∈ ℝ) |
serile.4 | ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝐹‘𝑘) ≤ (𝐺‘𝑘)) |
Ref | Expression |
---|---|
serile | ⊢ (𝜑 → (seq𝑀( + , 𝐹, ℂ)‘𝑁) ≤ (seq𝑀( + , 𝐺, ℂ)‘𝑁)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | serige0.1 | . . . 4 ⊢ (𝜑 → 𝑁 ∈ (ℤ≥‘𝑀)) | |
2 | vex 2560 | . . . . . 6 ⊢ 𝑘 ∈ V | |
3 | serile.3 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝐺‘𝑘) ∈ ℝ) | |
4 | serige0.2 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝐹‘𝑘) ∈ ℝ) | |
5 | 3, 4 | resubcld 7379 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → ((𝐺‘𝑘) − (𝐹‘𝑘)) ∈ ℝ) |
6 | fveq2 5178 | . . . . . . . 8 ⊢ (𝑥 = 𝑘 → (𝐺‘𝑥) = (𝐺‘𝑘)) | |
7 | fveq2 5178 | . . . . . . . 8 ⊢ (𝑥 = 𝑘 → (𝐹‘𝑥) = (𝐹‘𝑘)) | |
8 | 6, 7 | oveq12d 5530 | . . . . . . 7 ⊢ (𝑥 = 𝑘 → ((𝐺‘𝑥) − (𝐹‘𝑥)) = ((𝐺‘𝑘) − (𝐹‘𝑘))) |
9 | eqid 2040 | . . . . . . 7 ⊢ (𝑥 ∈ V ↦ ((𝐺‘𝑥) − (𝐹‘𝑥))) = (𝑥 ∈ V ↦ ((𝐺‘𝑥) − (𝐹‘𝑥))) | |
10 | 8, 9 | fvmptg 5248 | . . . . . 6 ⊢ ((𝑘 ∈ V ∧ ((𝐺‘𝑘) − (𝐹‘𝑘)) ∈ ℝ) → ((𝑥 ∈ V ↦ ((𝐺‘𝑥) − (𝐹‘𝑥)))‘𝑘) = ((𝐺‘𝑘) − (𝐹‘𝑘))) |
11 | 2, 5, 10 | sylancr 393 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → ((𝑥 ∈ V ↦ ((𝐺‘𝑥) − (𝐹‘𝑥)))‘𝑘) = ((𝐺‘𝑘) − (𝐹‘𝑘))) |
12 | 11, 5 | eqeltrd 2114 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → ((𝑥 ∈ V ↦ ((𝐺‘𝑥) − (𝐹‘𝑥)))‘𝑘) ∈ ℝ) |
13 | serile.4 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝐹‘𝑘) ≤ (𝐺‘𝑘)) | |
14 | 3, 4 | subge0d 7526 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (0 ≤ ((𝐺‘𝑘) − (𝐹‘𝑘)) ↔ (𝐹‘𝑘) ≤ (𝐺‘𝑘))) |
15 | 13, 14 | mpbird 156 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → 0 ≤ ((𝐺‘𝑘) − (𝐹‘𝑘))) |
16 | 15, 11 | breqtrrd 3790 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → 0 ≤ ((𝑥 ∈ V ↦ ((𝐺‘𝑥) − (𝐹‘𝑥)))‘𝑘)) |
17 | 1, 12, 16 | serige0 9252 | . . 3 ⊢ (𝜑 → 0 ≤ (seq𝑀( + , (𝑥 ∈ V ↦ ((𝐺‘𝑥) − (𝐹‘𝑥))), ℂ)‘𝑁)) |
18 | 3 | recnd 7054 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝐺‘𝑘) ∈ ℂ) |
19 | 4 | recnd 7054 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝐹‘𝑘) ∈ ℂ) |
20 | 1, 18, 19, 11 | isersub 9244 | . . 3 ⊢ (𝜑 → (seq𝑀( + , (𝑥 ∈ V ↦ ((𝐺‘𝑥) − (𝐹‘𝑥))), ℂ)‘𝑁) = ((seq𝑀( + , 𝐺, ℂ)‘𝑁) − (seq𝑀( + , 𝐹, ℂ)‘𝑁))) |
21 | 17, 20 | breqtrd 3788 | . 2 ⊢ (𝜑 → 0 ≤ ((seq𝑀( + , 𝐺, ℂ)‘𝑁) − (seq𝑀( + , 𝐹, ℂ)‘𝑁))) |
22 | eluzel2 8478 | . . . . . . 7 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → 𝑀 ∈ ℤ) | |
23 | 1, 22 | syl 14 | . . . . . 6 ⊢ (𝜑 → 𝑀 ∈ ℤ) |
24 | cnex 7005 | . . . . . . 7 ⊢ ℂ ∈ V | |
25 | 24 | a1i 9 | . . . . . 6 ⊢ (𝜑 → ℂ ∈ V) |
26 | ax-resscn 6976 | . . . . . . 7 ⊢ ℝ ⊆ ℂ | |
27 | 26 | a1i 9 | . . . . . 6 ⊢ (𝜑 → ℝ ⊆ ℂ) |
28 | readdcl 7007 | . . . . . . 7 ⊢ ((𝑘 ∈ ℝ ∧ 𝑥 ∈ ℝ) → (𝑘 + 𝑥) ∈ ℝ) | |
29 | 28 | adantl 262 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑘 ∈ ℝ ∧ 𝑥 ∈ ℝ)) → (𝑘 + 𝑥) ∈ ℝ) |
30 | addcl 7006 | . . . . . . 7 ⊢ ((𝑘 ∈ ℂ ∧ 𝑥 ∈ ℂ) → (𝑘 + 𝑥) ∈ ℂ) | |
31 | 30 | adantl 262 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑘 ∈ ℂ ∧ 𝑥 ∈ ℂ)) → (𝑘 + 𝑥) ∈ ℂ) |
32 | 23, 25, 27, 3, 29, 31 | iseqss 9226 | . . . . 5 ⊢ (𝜑 → seq𝑀( + , 𝐺, ℝ) = seq𝑀( + , 𝐺, ℂ)) |
33 | 32 | fveq1d 5180 | . . . 4 ⊢ (𝜑 → (seq𝑀( + , 𝐺, ℝ)‘𝑁) = (seq𝑀( + , 𝐺, ℂ)‘𝑁)) |
34 | reex 7015 | . . . . . 6 ⊢ ℝ ∈ V | |
35 | 34 | a1i 9 | . . . . 5 ⊢ (𝜑 → ℝ ∈ V) |
36 | 1, 35, 3, 29 | iseqcl 9223 | . . . 4 ⊢ (𝜑 → (seq𝑀( + , 𝐺, ℝ)‘𝑁) ∈ ℝ) |
37 | 33, 36 | eqeltrrd 2115 | . . 3 ⊢ (𝜑 → (seq𝑀( + , 𝐺, ℂ)‘𝑁) ∈ ℝ) |
38 | 23, 25, 27, 4, 29, 31 | iseqss 9226 | . . . . 5 ⊢ (𝜑 → seq𝑀( + , 𝐹, ℝ) = seq𝑀( + , 𝐹, ℂ)) |
39 | 38 | fveq1d 5180 | . . . 4 ⊢ (𝜑 → (seq𝑀( + , 𝐹, ℝ)‘𝑁) = (seq𝑀( + , 𝐹, ℂ)‘𝑁)) |
40 | 1, 35, 4, 29 | iseqcl 9223 | . . . 4 ⊢ (𝜑 → (seq𝑀( + , 𝐹, ℝ)‘𝑁) ∈ ℝ) |
41 | 39, 40 | eqeltrrd 2115 | . . 3 ⊢ (𝜑 → (seq𝑀( + , 𝐹, ℂ)‘𝑁) ∈ ℝ) |
42 | 37, 41 | subge0d 7526 | . 2 ⊢ (𝜑 → (0 ≤ ((seq𝑀( + , 𝐺, ℂ)‘𝑁) − (seq𝑀( + , 𝐹, ℂ)‘𝑁)) ↔ (seq𝑀( + , 𝐹, ℂ)‘𝑁) ≤ (seq𝑀( + , 𝐺, ℂ)‘𝑁))) |
43 | 21, 42 | mpbid 135 | 1 ⊢ (𝜑 → (seq𝑀( + , 𝐹, ℂ)‘𝑁) ≤ (seq𝑀( + , 𝐺, ℂ)‘𝑁)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 97 = wceq 1243 ∈ wcel 1393 Vcvv 2557 ⊆ wss 2917 class class class wbr 3764 ↦ cmpt 3818 ‘cfv 4902 (class class class)co 5512 ℂcc 6887 ℝcr 6888 0cc0 6889 + caddc 6892 ≤ cle 7061 − cmin 7182 ℤcz 8245 ℤ≥cuz 8473 seqcseq 9211 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-in1 544 ax-in2 545 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-13 1404 ax-14 1405 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 ax-coll 3872 ax-sep 3875 ax-nul 3883 ax-pow 3927 ax-pr 3944 ax-un 4170 ax-setind 4262 ax-iinf 4311 ax-cnex 6975 ax-resscn 6976 ax-1cn 6977 ax-1re 6978 ax-icn 6979 ax-addcl 6980 ax-addrcl 6981 ax-mulcl 6982 ax-addcom 6984 ax-addass 6986 ax-distr 6988 ax-i2m1 6989 ax-0id 6992 ax-rnegex 6993 ax-cnre 6995 ax-pre-ltirr 6996 ax-pre-ltwlin 6997 ax-pre-lttrn 6998 ax-pre-ltadd 7000 |
This theorem depends on definitions: df-bi 110 df-dc 743 df-3or 886 df-3an 887 df-tru 1246 df-fal 1249 df-nf 1350 df-sb 1646 df-eu 1903 df-mo 1904 df-clab 2027 df-cleq 2033 df-clel 2036 df-nfc 2167 df-ne 2206 df-nel 2207 df-ral 2311 df-rex 2312 df-reu 2313 df-rab 2315 df-v 2559 df-sbc 2765 df-csb 2853 df-dif 2920 df-un 2922 df-in 2924 df-ss 2931 df-nul 3225 df-pw 3361 df-sn 3381 df-pr 3382 df-op 3384 df-uni 3581 df-int 3616 df-iun 3659 df-br 3765 df-opab 3819 df-mpt 3820 df-tr 3855 df-eprel 4026 df-id 4030 df-po 4033 df-iso 4034 df-iord 4103 df-on 4105 df-suc 4108 df-iom 4314 df-xp 4351 df-rel 4352 df-cnv 4353 df-co 4354 df-dm 4355 df-rn 4356 df-res 4357 df-ima 4358 df-iota 4867 df-fun 4904 df-fn 4905 df-f 4906 df-f1 4907 df-fo 4908 df-f1o 4909 df-fv 4910 df-riota 5468 df-ov 5515 df-oprab 5516 df-mpt2 5517 df-1st 5767 df-2nd 5768 df-recs 5920 df-irdg 5957 df-frec 5978 df-1o 6001 df-2o 6002 df-oadd 6005 df-omul 6006 df-er 6106 df-ec 6108 df-qs 6112 df-ni 6402 df-pli 6403 df-mi 6404 df-lti 6405 df-plpq 6442 df-mpq 6443 df-enq 6445 df-nqqs 6446 df-plqqs 6447 df-mqqs 6448 df-1nqqs 6449 df-rq 6450 df-ltnqqs 6451 df-enq0 6522 df-nq0 6523 df-0nq0 6524 df-plq0 6525 df-mq0 6526 df-inp 6564 df-i1p 6565 df-iplp 6566 df-iltp 6568 df-enr 6811 df-nr 6812 df-ltr 6815 df-0r 6816 df-1r 6817 df-0 6896 df-1 6897 df-r 6899 df-lt 6902 df-pnf 7062 df-mnf 7063 df-xr 7064 df-ltxr 7065 df-le 7066 df-sub 7184 df-neg 7185 df-inn 7915 df-n0 8182 df-z 8246 df-uz 8474 df-fz 8875 df-fzo 9000 df-iseq 9212 |
This theorem is referenced by: iserile 9862 |
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