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Mirrors > Home > MPE Home > Th. List > climbdd | Structured version Visualization version GIF version |
Description: A converging sequence of complex numbers is bounded. (Contributed by Mario Carneiro, 9-Jul-2017.) |
Ref | Expression |
---|---|
climcau.1 | ⊢ 𝑍 = (ℤ≥‘𝑀) |
Ref | Expression |
---|---|
climbdd | ⊢ ((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ∧ ∀𝑘 ∈ 𝑍 (𝐹‘𝑘) ∈ ℂ) → ∃𝑥 ∈ ℝ ∀𝑘 ∈ 𝑍 (abs‘(𝐹‘𝑘)) ≤ 𝑥) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simp3 1137 | . . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ∧ ∀𝑘 ∈ 𝑍 (𝐹‘𝑘) ∈ ℂ) → ∀𝑘 ∈ 𝑍 (𝐹‘𝑘) ∈ ℂ) | |
2 | climcau.1 | . . . . 5 ⊢ 𝑍 = (ℤ≥‘𝑀) | |
3 | 2 | climcau 15382 | . . . 4 ⊢ ((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ) → ∀𝑦 ∈ ℝ+ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(abs‘((𝐹‘𝑘) − (𝐹‘𝑗))) < 𝑦) |
4 | 3 | 3adant3 1131 | . . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ∧ ∀𝑘 ∈ 𝑍 (𝐹‘𝑘) ∈ ℂ) → ∀𝑦 ∈ ℝ+ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(abs‘((𝐹‘𝑘) − (𝐹‘𝑗))) < 𝑦) |
5 | 2 | caubnd 15070 | . . 3 ⊢ ((∀𝑘 ∈ 𝑍 (𝐹‘𝑘) ∈ ℂ ∧ ∀𝑦 ∈ ℝ+ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(abs‘((𝐹‘𝑘) − (𝐹‘𝑗))) < 𝑦) → ∃𝑥 ∈ ℝ ∀𝑘 ∈ 𝑍 (abs‘(𝐹‘𝑘)) < 𝑥) |
6 | 1, 4, 5 | syl2anc 584 | . 2 ⊢ ((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ∧ ∀𝑘 ∈ 𝑍 (𝐹‘𝑘) ∈ ℂ) → ∃𝑥 ∈ ℝ ∀𝑘 ∈ 𝑍 (abs‘(𝐹‘𝑘)) < 𝑥) |
7 | r19.26 3095 | . . . . . . 7 ⊢ (∀𝑘 ∈ 𝑍 ((𝐹‘𝑘) ∈ ℂ ∧ (abs‘(𝐹‘𝑘)) < 𝑥) ↔ (∀𝑘 ∈ 𝑍 (𝐹‘𝑘) ∈ ℂ ∧ ∀𝑘 ∈ 𝑍 (abs‘(𝐹‘𝑘)) < 𝑥)) | |
8 | simpr 485 | . . . . . . . . . . 11 ⊢ (((((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ) ∧ 𝑥 ∈ ℝ) ∧ 𝑘 ∈ 𝑍) ∧ (𝐹‘𝑘) ∈ ℂ) → (𝐹‘𝑘) ∈ ℂ) | |
9 | 8 | abscld 15148 | . . . . . . . . . 10 ⊢ (((((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ) ∧ 𝑥 ∈ ℝ) ∧ 𝑘 ∈ 𝑍) ∧ (𝐹‘𝑘) ∈ ℂ) → (abs‘(𝐹‘𝑘)) ∈ ℝ) |
10 | simpllr 773 | . . . . . . . . . 10 ⊢ (((((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ) ∧ 𝑥 ∈ ℝ) ∧ 𝑘 ∈ 𝑍) ∧ (𝐹‘𝑘) ∈ ℂ) → 𝑥 ∈ ℝ) | |
11 | ltle 11063 | . . . . . . . . . 10 ⊢ (((abs‘(𝐹‘𝑘)) ∈ ℝ ∧ 𝑥 ∈ ℝ) → ((abs‘(𝐹‘𝑘)) < 𝑥 → (abs‘(𝐹‘𝑘)) ≤ 𝑥)) | |
12 | 9, 10, 11 | syl2anc 584 | . . . . . . . . 9 ⊢ (((((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ) ∧ 𝑥 ∈ ℝ) ∧ 𝑘 ∈ 𝑍) ∧ (𝐹‘𝑘) ∈ ℂ) → ((abs‘(𝐹‘𝑘)) < 𝑥 → (abs‘(𝐹‘𝑘)) ≤ 𝑥)) |
13 | 12 | expimpd 454 | . . . . . . . 8 ⊢ ((((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ) ∧ 𝑥 ∈ ℝ) ∧ 𝑘 ∈ 𝑍) → (((𝐹‘𝑘) ∈ ℂ ∧ (abs‘(𝐹‘𝑘)) < 𝑥) → (abs‘(𝐹‘𝑘)) ≤ 𝑥)) |
14 | 13 | ralimdva 3108 | . . . . . . 7 ⊢ (((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ) ∧ 𝑥 ∈ ℝ) → (∀𝑘 ∈ 𝑍 ((𝐹‘𝑘) ∈ ℂ ∧ (abs‘(𝐹‘𝑘)) < 𝑥) → ∀𝑘 ∈ 𝑍 (abs‘(𝐹‘𝑘)) ≤ 𝑥)) |
15 | 7, 14 | syl5bir 242 | . . . . . 6 ⊢ (((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ) ∧ 𝑥 ∈ ℝ) → ((∀𝑘 ∈ 𝑍 (𝐹‘𝑘) ∈ ℂ ∧ ∀𝑘 ∈ 𝑍 (abs‘(𝐹‘𝑘)) < 𝑥) → ∀𝑘 ∈ 𝑍 (abs‘(𝐹‘𝑘)) ≤ 𝑥)) |
16 | 15 | exp4b 431 | . . . . 5 ⊢ ((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ) → (𝑥 ∈ ℝ → (∀𝑘 ∈ 𝑍 (𝐹‘𝑘) ∈ ℂ → (∀𝑘 ∈ 𝑍 (abs‘(𝐹‘𝑘)) < 𝑥 → ∀𝑘 ∈ 𝑍 (abs‘(𝐹‘𝑘)) ≤ 𝑥)))) |
17 | 16 | com23 86 | . . . 4 ⊢ ((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ) → (∀𝑘 ∈ 𝑍 (𝐹‘𝑘) ∈ ℂ → (𝑥 ∈ ℝ → (∀𝑘 ∈ 𝑍 (abs‘(𝐹‘𝑘)) < 𝑥 → ∀𝑘 ∈ 𝑍 (abs‘(𝐹‘𝑘)) ≤ 𝑥)))) |
18 | 17 | 3impia 1116 | . . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ∧ ∀𝑘 ∈ 𝑍 (𝐹‘𝑘) ∈ ℂ) → (𝑥 ∈ ℝ → (∀𝑘 ∈ 𝑍 (abs‘(𝐹‘𝑘)) < 𝑥 → ∀𝑘 ∈ 𝑍 (abs‘(𝐹‘𝑘)) ≤ 𝑥))) |
19 | 18 | reximdvai 3200 | . 2 ⊢ ((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ∧ ∀𝑘 ∈ 𝑍 (𝐹‘𝑘) ∈ ℂ) → (∃𝑥 ∈ ℝ ∀𝑘 ∈ 𝑍 (abs‘(𝐹‘𝑘)) < 𝑥 → ∃𝑥 ∈ ℝ ∀𝑘 ∈ 𝑍 (abs‘(𝐹‘𝑘)) ≤ 𝑥)) |
20 | 6, 19 | mpd 15 | 1 ⊢ ((𝑀 ∈ ℤ ∧ 𝐹 ∈ dom ⇝ ∧ ∀𝑘 ∈ 𝑍 (𝐹‘𝑘) ∈ ℂ) → ∃𝑥 ∈ ℝ ∀𝑘 ∈ 𝑍 (abs‘(𝐹‘𝑘)) ≤ 𝑥) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 ∧ w3a 1086 = wceq 1539 ∈ wcel 2106 ∀wral 3064 ∃wrex 3065 class class class wbr 5074 dom cdm 5589 ‘cfv 6433 (class class class)co 7275 ℂcc 10869 ℝcr 10870 < clt 11009 ≤ cle 11010 − cmin 11205 ℤcz 12319 ℤ≥cuz 12582 ℝ+crp 12730 abscabs 14945 ⇝ cli 15193 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 ax-pre-sup 10949 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-1st 7831 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-1o 8297 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-sup 9201 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-div 11633 df-nn 11974 df-2 12036 df-3 12037 df-n0 12234 df-z 12320 df-uz 12583 df-rp 12731 df-fz 13240 df-seq 13722 df-exp 13783 df-cj 14810 df-re 14811 df-im 14812 df-sqrt 14946 df-abs 14947 df-clim 15197 |
This theorem is referenced by: mtestbdd 25564 climbddf 43228 sge0isum 43965 |
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