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| Mirrors > Home > MPE Home > Th. List > climi0 | Structured version Visualization version GIF version | ||
| Description: Convergence of a sequence of complex numbers to zero. (Contributed by NM, 11-Jan-2007.) (Revised by Mario Carneiro, 31-Jan-2014.) |
| Ref | Expression |
|---|---|
| climi.1 | ⊢ 𝑍 = (ℤ≥‘𝑀) |
| climi.2 | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
| climi.3 | ⊢ (𝜑 → 𝐶 ∈ ℝ+) |
| climi.4 | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) = 𝐵) |
| climi0.5 | ⊢ (𝜑 → 𝐹 ⇝ 0) |
| Ref | Expression |
|---|---|
| climi0 | ⊢ (𝜑 → ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(abs‘𝐵) < 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | climi.1 | . . 3 ⊢ 𝑍 = (ℤ≥‘𝑀) | |
| 2 | climi.2 | . . 3 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
| 3 | climi.3 | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℝ+) | |
| 4 | climi.4 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) = 𝐵) | |
| 5 | climi0.5 | . . 3 ⊢ (𝜑 → 𝐹 ⇝ 0) | |
| 6 | 1, 2, 3, 4, 5 | climi 15483 | . 2 ⊢ (𝜑 → ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(𝐵 ∈ ℂ ∧ (abs‘(𝐵 − 0)) < 𝐶)) |
| 7 | subid1 11449 | . . . . . . 7 ⊢ (𝐵 ∈ ℂ → (𝐵 − 0) = 𝐵) | |
| 8 | 7 | fveq2d 6865 | . . . . . 6 ⊢ (𝐵 ∈ ℂ → (abs‘(𝐵 − 0)) = (abs‘𝐵)) |
| 9 | 8 | breq1d 5120 | . . . . 5 ⊢ (𝐵 ∈ ℂ → ((abs‘(𝐵 − 0)) < 𝐶 ↔ (abs‘𝐵) < 𝐶)) |
| 10 | 9 | biimpa 476 | . . . 4 ⊢ ((𝐵 ∈ ℂ ∧ (abs‘(𝐵 − 0)) < 𝐶) → (abs‘𝐵) < 𝐶) |
| 11 | 10 | ralimi 3067 | . . 3 ⊢ (∀𝑘 ∈ (ℤ≥‘𝑗)(𝐵 ∈ ℂ ∧ (abs‘(𝐵 − 0)) < 𝐶) → ∀𝑘 ∈ (ℤ≥‘𝑗)(abs‘𝐵) < 𝐶) |
| 12 | 11 | reximi 3068 | . 2 ⊢ (∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(𝐵 ∈ ℂ ∧ (abs‘(𝐵 − 0)) < 𝐶) → ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(abs‘𝐵) < 𝐶) |
| 13 | 6, 12 | syl 17 | 1 ⊢ (𝜑 → ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(abs‘𝐵) < 𝐶) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1540 ∈ wcel 2109 ∀wral 3045 ∃wrex 3054 class class class wbr 5110 ‘cfv 6514 (class class class)co 7390 ℂcc 11073 0cc0 11075 < clt 11215 − cmin 11412 ℤcz 12536 ℤ≥cuz 12800 ℝ+crp 12958 abscabs 15207 ⇝ cli 15457 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2702 ax-sep 5254 ax-nul 5264 ax-pow 5323 ax-pr 5390 ax-un 7714 ax-cnex 11131 ax-resscn 11132 ax-1cn 11133 ax-icn 11134 ax-addcl 11135 ax-addrcl 11136 ax-mulcl 11137 ax-mulrcl 11138 ax-mulcom 11139 ax-addass 11140 ax-mulass 11141 ax-distr 11142 ax-i2m1 11143 ax-1ne0 11144 ax-1rid 11145 ax-rnegex 11146 ax-rrecex 11147 ax-cnre 11148 ax-pre-lttri 11149 ax-pre-lttrn 11150 ax-pre-ltadd 11151 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2879 df-ne 2927 df-nel 3031 df-ral 3046 df-rex 3055 df-reu 3357 df-rab 3409 df-v 3452 df-sbc 3757 df-csb 3866 df-dif 3920 df-un 3922 df-in 3924 df-ss 3934 df-nul 4300 df-if 4492 df-pw 4568 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-br 5111 df-opab 5173 df-mpt 5192 df-id 5536 df-po 5549 df-so 5550 df-xp 5647 df-rel 5648 df-cnv 5649 df-co 5650 df-dm 5651 df-rn 5652 df-res 5653 df-ima 5654 df-iota 6467 df-fun 6516 df-fn 6517 df-f 6518 df-f1 6519 df-fo 6520 df-f1o 6521 df-fv 6522 df-riota 7347 df-ov 7393 df-oprab 7394 df-mpo 7395 df-er 8674 df-en 8922 df-dom 8923 df-sdom 8924 df-pnf 11217 df-mnf 11218 df-xr 11219 df-ltxr 11220 df-le 11221 df-sub 11414 df-neg 11415 df-z 12537 df-uz 12801 df-clim 15461 |
| This theorem is referenced by: mertenslem2 15858 iscmet3lem3 25197 radcnvlem1 26329 abelthlem5 26352 abelthlem8 26356 sinccvg 35667 |
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