| 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 45976 | . . . . 5 ⊢ (𝑗 ∈ 𝑍 → 𝑗 ∈ ℤ) |
| 3 | 2 | ad2antlr 739 | . . . 4 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℂ) → 𝑗 ∈ ℤ) |
| 4 | eqid 2765 | . . . 4 ⊢ (ℤ≥‘𝑗) = (ℤ≥‘𝑗) | |
| 5 | climxlim2.f | . . . . . . 7 ⊢ (𝜑 → 𝐹:𝑍⟶ℝ*) | |
| 6 | 5 | adantr 485 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝐹:𝑍⟶ℝ*) |
| 7 | 1 | uzssd3 45999 | . . . . . . 7 ⊢ (𝑗 ∈ 𝑍 → (ℤ≥‘𝑗) ⊆ 𝑍) |
| 8 | 7 | adantl 486 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (ℤ≥‘𝑗) ⊆ 𝑍) |
| 9 | 6, 8 | fssresd 6735 | . . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℝ*) |
| 10 | 9 | adantr 485 | . . . 4 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℂ) → (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℝ*) |
| 11 | simpr 489 | . . . 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 485 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝐹 ⇝ 𝐴) |
| 14 | 1 | fvexi 6885 | . . . . . . . . 9 ⊢ 𝑍 ∈ V |
| 15 | 14 | a1i 11 | . . . . . . . 8 ⊢ (𝜑 → 𝑍 ∈ V) |
| 16 | 5, 15 | fexd 7215 | . . . . . . 7 ⊢ (𝜑 → 𝐹 ∈ V) |
| 17 | climres 15614 | . . . . . . 7 ⊢ ((𝑗 ∈ ℤ ∧ 𝐹 ∈ V) → ((𝐹 ↾ (ℤ≥‘𝑗)) ⇝ 𝐴 ↔ 𝐹 ⇝ 𝐴)) | |
| 18 | 2, 16, 17 | syl2anr 608 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → ((𝐹 ↾ (ℤ≥‘𝑗)) ⇝ 𝐴 ↔ 𝐹 ⇝ 𝐴)) |
| 19 | 13, 18 | mpbird 260 | . . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹 ↾ (ℤ≥‘𝑗)) ⇝ 𝐴) |
| 20 | 19 | adantr 485 | . . . 4 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℂ) → (𝐹 ↾ (ℤ≥‘𝑗)) ⇝ 𝐴) |
| 21 | 3, 4, 10, 11, 20 | climxlim2lem 46418 | . . 3 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℂ) → (𝐹 ↾ (ℤ≥‘𝑗))~~>*𝐴) |
| 22 | 1, 5 | fuzxrpmcn 46401 | . . . . . 6 ⊢ (𝜑 → 𝐹 ∈ (ℝ* ↑pm ℂ)) |
| 23 | 22 | adantr 485 | . . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝐹 ∈ (ℝ* ↑pm ℂ)) |
| 24 | 2 | adantl 486 | . . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝑗 ∈ ℤ) |
| 25 | 23, 24 | xlimres 46394 | . . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹~~>*𝐴 ↔ (𝐹 ↾ (ℤ≥‘𝑗))~~>*𝐴)) |
| 26 | 25 | adantr 485 | . . 3 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℂ) → (𝐹~~>*𝐴 ↔ (𝐹 ↾ (ℤ≥‘𝑗))~~>*𝐴)) |
| 27 | 21, 26 | mpbird 260 | . 2 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℂ) → 𝐹~~>*𝐴) |
| 28 | climxlim2.m | . . 3 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
| 29 | 5 | ffnd 6696 | . . 3 ⊢ (𝜑 → 𝐹 Fn 𝑍) |
| 30 | climcl 15538 | . . . . 5 ⊢ (𝐹 ⇝ 𝐴 → 𝐴 ∈ ℂ) | |
| 31 | 12, 30 | syl 18 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| 32 | breldmg 5889 | . . . 4 ⊢ ((𝐹 ∈ V ∧ 𝐴 ∈ ℂ ∧ 𝐹 ⇝ 𝐴) → 𝐹 ∈ dom ⇝ ) | |
| 33 | 16, 31, 12, 32 | syl3anc 1394 | . . 3 ⊢ (𝜑 → 𝐹 ∈ dom ⇝ ) |
| 34 | 28, 1, 29, 33 | climrescn 46321 | . 2 ⊢ (𝜑 → ∃𝑗 ∈ 𝑍 (𝐹 ↾ (ℤ≥‘𝑗)):(ℤ≥‘𝑗)⟶ℂ) |
| 35 | 27, 34 | r19.29a 3173 | 1 ⊢ (𝜑 → 𝐹~~>*𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 ∧ wa 400 = wceq 1563 ∈ wcel 2145 Vcvv 3457 ⊆ wss 3907 class class class wbr 5104 dom cdm 5651 ↾ cres 5653 ⟶wf 6521 ‘cfv 6525 (class class class)co 7400 ↑pm cpm 8813 ℂcc 11086 ℝ*cxr 11230 ℤcz 12579 ℤ≥cuz 12850 ⇝ cli 15523 ~~>*clsxlim 46391 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-rep 5231 ax-sep 5250 ax-nul 5260 ax-pow 5326 ax-pr 5394 ax-un 7722 ax-cnex 11144 ax-resscn 11145 ax-1cn 11146 ax-icn 11147 ax-addcl 11148 ax-addrcl 11149 ax-mulcl 11150 ax-mulrcl 11151 ax-mulcom 11152 ax-addass 11153 ax-mulass 11154 ax-distr 11155 ax-i2m1 11156 ax-1ne0 11157 ax-1rid 11158 ax-rnegex 11159 ax-rrecex 11160 ax-cnre 11161 ax-pre-lttri 11162 ax-pre-lttrn 11163 ax-pre-ltadd 11164 ax-pre-mulgt0 11165 ax-pre-sup 11166 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3370 df-reu 3371 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-pss 3927 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-tp 4590 df-op 4592 df-uni 4868 df-int 4908 df-iun 4953 df-br 5105 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6291 df-ord 6352 df-on 6353 df-lim 6354 df-suc 6355 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-f1 6530 df-fo 6531 df-f1o 6532 df-fv 6533 df-riota 7357 df-ov 7403 df-oprab 7404 df-mpo 7405 df-om 7851 df-1st 7974 df-2nd 7975 df-frecs 8266 df-wrecs 8297 df-recs 8346 df-rdg 8385 df-1o 8441 df-2o 8442 df-er 8682 df-map 8814 df-pm 8815 df-en 8932 df-dom 8933 df-sdom 8934 df-fin 8935 df-fi 9359 df-sup 9390 df-inf 9391 df-pnf 11233 df-mnf 11234 df-xr 11235 df-ltxr 11236 df-le 11237 df-sub 11431 df-neg 11432 df-div 11860 df-nn 12222 df-2 12291 df-3 12292 df-4 12293 df-5 12294 df-6 12295 df-7 12296 df-8 12297 df-9 12298 df-n0 12493 df-z 12580 df-dec 12700 df-uz 12851 df-q 12961 df-rp 13005 df-xneg 13125 df-xadd 13126 df-xmul 13127 df-ioo 13364 df-ioc 13365 df-ico 13366 df-icc 13367 df-fz 13524 df-fl 13813 df-seq 14026 df-exp 14086 df-cj 15138 df-re 15139 df-im 15140 df-sqrt 15274 df-abs 15275 df-clim 15527 df-rlim 15528 df-struct 17195 df-slot 17230 df-ndx 17242 df-base 17258 df-plusg 17311 df-mulr 17312 df-starv 17313 df-tset 17317 df-ple 17318 df-ds 17320 df-unif 17321 df-rest 17463 df-topn 17464 df-topgen 17484 df-ordt 17543 df-ps 18610 df-tsr 18611 df-psmet 21471 df-xmet 21472 df-met 21473 df-bl 21474 df-mopn 21475 df-cnfld 21480 df-top 23008 df-topon 23025 df-topsp 23047 df-bases 23060 df-lm 23343 df-xms 24434 df-ms 24435 df-xlim 46392 |
| This theorem is referenced by: dfxlim2v 46420 meaiuninc3v 47057 |
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