Mathbox for Glauco Siliprandi |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > climxlim2 | Structured version Visualization version GIF version |
Description: A sequence of extended reals, converging w.r.t. the standard topology on the complex numbers is a converging sequence w.r.t. the standard topology on the extended reals. This is non-trivial, because +∞ and -∞ could, in principle, be complex numbers. (Contributed by Glauco Siliprandi, 5-Feb-2022.) |
Ref | Expression |
---|---|
climxlim2.m | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
climxlim2.z | ⊢ 𝑍 = (ℤ≥‘𝑀) |
climxlim2.f | ⊢ (𝜑 → 𝐹:𝑍⟶ℝ*) |
climxlim2.a | ⊢ (𝜑 → 𝐹 ⇝ 𝐴) |
Ref | Expression |
---|---|
climxlim2 | ⊢ (𝜑 → 𝐹~~>*𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | climxlim2.z | . . . . . 6 ⊢ 𝑍 = (ℤ≥‘𝑀) | |
2 | 1 | eluzelz2 42833 | . . . . 5 ⊢ (𝑗 ∈ 𝑍 → 𝑗 ∈ ℤ) |
3 | 2 | ad2antlr 723 | . . . 4 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℂ) → 𝑗 ∈ ℤ) |
4 | eqid 2738 | . . . 4 ⊢ (ℤ≥‘𝑗) = (ℤ≥‘𝑗) | |
5 | climxlim2.f | . . . . . . 7 ⊢ (𝜑 → 𝐹:𝑍⟶ℝ*) | |
6 | 5 | adantr 480 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝐹:𝑍⟶ℝ*) |
7 | 1 | uzssd3 42856 | . . . . . . 7 ⊢ (𝑗 ∈ 𝑍 → (ℤ≥‘𝑗) ⊆ 𝑍) |
8 | 7 | adantl 481 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (ℤ≥‘𝑗) ⊆ 𝑍) |
9 | 6, 8 | fssresd 6625 | . . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℝ*) |
10 | 9 | adantr 480 | . . . 4 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℂ) → (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℝ*) |
11 | simpr 484 | . . . 4 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℂ) → (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℂ) | |
12 | climxlim2.a | . . . . . . 7 ⊢ (𝜑 → 𝐹 ⇝ 𝐴) | |
13 | 12 | adantr 480 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝐹 ⇝ 𝐴) |
14 | 1 | fvexi 6770 | . . . . . . . . 9 ⊢ 𝑍 ∈ V |
15 | 14 | a1i 11 | . . . . . . . 8 ⊢ (𝜑 → 𝑍 ∈ V) |
16 | 5, 15 | fexd 7085 | . . . . . . 7 ⊢ (𝜑 → 𝐹 ∈ V) |
17 | climres 15212 | . . . . . . 7 ⊢ ((𝑗 ∈ ℤ ∧ 𝐹 ∈ V) → ((𝐹 ↾ (ℤ≥‘𝑗)) ⇝ 𝐴 ↔ 𝐹 ⇝ 𝐴)) | |
18 | 2, 16, 17 | syl2anr 596 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → ((𝐹 ↾ (ℤ≥‘𝑗)) ⇝ 𝐴 ↔ 𝐹 ⇝ 𝐴)) |
19 | 13, 18 | mpbird 256 | . . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹 ↾ (ℤ≥‘𝑗)) ⇝ 𝐴) |
20 | 19 | adantr 480 | . . . 4 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℂ) → (𝐹 ↾ (ℤ≥‘𝑗)) ⇝ 𝐴) |
21 | 3, 4, 10, 11, 20 | climxlim2lem 43276 | . . 3 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℂ) → (𝐹 ↾ (ℤ≥‘𝑗))~~>*𝐴) |
22 | 1, 5 | fuzxrpmcn 43259 | . . . . . 6 ⊢ (𝜑 → 𝐹 ∈ (ℝ* ↑pm ℂ)) |
23 | 22 | adantr 480 | . . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝐹 ∈ (ℝ* ↑pm ℂ)) |
24 | 2 | adantl 481 | . . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝑗 ∈ ℤ) |
25 | 23, 24 | xlimres 43252 | . . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹~~>*𝐴 ↔ (𝐹 ↾ (ℤ≥‘𝑗))~~>*𝐴)) |
26 | 25 | adantr 480 | . . 3 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℂ) → (𝐹~~>*𝐴 ↔ (𝐹 ↾ (ℤ≥‘𝑗))~~>*𝐴)) |
27 | 21, 26 | mpbird 256 | . 2 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℂ) → 𝐹~~>*𝐴) |
28 | climxlim2.m | . . 3 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
29 | 5 | ffnd 6585 | . . 3 ⊢ (𝜑 → 𝐹 Fn 𝑍) |
30 | climcl 15136 | . . . . 5 ⊢ (𝐹 ⇝ 𝐴 → 𝐴 ∈ ℂ) | |
31 | 12, 30 | syl 17 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ ℂ) |
32 | breldmg 5807 | . . . 4 ⊢ ((𝐹 ∈ V ∧ 𝐴 ∈ ℂ ∧ 𝐹 ⇝ 𝐴) → 𝐹 ∈ dom ⇝ ) | |
33 | 16, 31, 12, 32 | syl3anc 1369 | . . 3 ⊢ (𝜑 → 𝐹 ∈ dom ⇝ ) |
34 | 28, 1, 29, 33 | climrescn 43179 | . 2 ⊢ (𝜑 → ∃𝑗 ∈ 𝑍 (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℂ) |
35 | 27, 34 | r19.29a 3217 | 1 ⊢ (𝜑 → 𝐹~~>*𝐴) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 = wceq 1539 ∈ wcel 2108 Vcvv 3422 ⊆ wss 3883 class class class wbr 5070 dom cdm 5580 ↾ cres 5582 ⟶wf 6414 ‘cfv 6418 (class class class)co 7255 ↑pm cpm 8574 ℂcc 10800 ℝ*cxr 10939 ℤcz 12249 ℤ≥cuz 12511 ⇝ cli 15121 ~~>*clsxlim 43249 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 ax-pre-sup 10880 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-int 4877 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-er 8456 df-map 8575 df-pm 8576 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-fi 9100 df-sup 9131 df-inf 9132 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-div 11563 df-nn 11904 df-2 11966 df-3 11967 df-4 11968 df-5 11969 df-6 11970 df-7 11971 df-8 11972 df-9 11973 df-n0 12164 df-z 12250 df-dec 12367 df-uz 12512 df-q 12618 df-rp 12660 df-xneg 12777 df-xadd 12778 df-xmul 12779 df-ioo 13012 df-ioc 13013 df-ico 13014 df-icc 13015 df-fz 13169 df-fl 13440 df-seq 13650 df-exp 13711 df-cj 14738 df-re 14739 df-im 14740 df-sqrt 14874 df-abs 14875 df-clim 15125 df-rlim 15126 df-struct 16776 df-slot 16811 df-ndx 16823 df-base 16841 df-plusg 16901 df-mulr 16902 df-starv 16903 df-tset 16907 df-ple 16908 df-ds 16910 df-unif 16911 df-rest 17050 df-topn 17051 df-topgen 17071 df-ordt 17129 df-ps 18199 df-tsr 18200 df-psmet 20502 df-xmet 20503 df-met 20504 df-bl 20505 df-mopn 20506 df-cnfld 20511 df-top 21951 df-topon 21968 df-topsp 21990 df-bases 22004 df-lm 22288 df-xms 23381 df-ms 23382 df-xlim 43250 |
This theorem is referenced by: dfxlim2v 43278 meaiuninc3v 43912 |
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