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| Mirrors > Home > MPE Home > Th. List > clim0c | Structured version Visualization version GIF version | ||
| Description: Express the predicate 𝐹 converges to 0. (Contributed by NM, 24-Feb-2008.) (Revised by Mario Carneiro, 31-Jan-2014.) |
| Ref | Expression |
|---|---|
| clim0.1 | ⊢ 𝑍 = (ℤ≥‘𝑀) |
| clim0.2 | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
| clim0.3 | ⊢ (𝜑 → 𝐹 ∈ 𝑉) |
| clim0.4 | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) = 𝐵) |
| clim0c.6 | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → 𝐵 ∈ ℂ) |
| Ref | Expression |
|---|---|
| clim0c | ⊢ (𝜑 → (𝐹 ⇝ 0 ↔ ∀𝑥 ∈ ℝ+ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(abs‘𝐵) < 𝑥)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | clim0.1 | . . 3 ⊢ 𝑍 = (ℤ≥‘𝑀) | |
| 2 | clim0.2 | . . 3 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
| 3 | clim0.3 | . . 3 ⊢ (𝜑 → 𝐹 ∈ 𝑉) | |
| 4 | clim0.4 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) = 𝐵) | |
| 5 | 0cnd 11228 | . . 3 ⊢ (𝜑 → 0 ∈ ℂ) | |
| 6 | clim0c.6 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → 𝐵 ∈ ℂ) | |
| 7 | 1, 2, 3, 4, 5, 6 | clim2c 15521 | . 2 ⊢ (𝜑 → (𝐹 ⇝ 0 ↔ ∀𝑥 ∈ ℝ+ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(abs‘(𝐵 − 0)) < 𝑥)) |
| 8 | 1 | uztrn2 12871 | . . . . . . 7 ⊢ ((𝑗 ∈ 𝑍 ∧ 𝑘 ∈ (ℤ≥‘𝑗)) → 𝑘 ∈ 𝑍) |
| 9 | 6 | subid1d 11583 | . . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐵 − 0) = 𝐵) |
| 10 | 9 | fveq2d 6880 | . . . . . . . 8 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (abs‘(𝐵 − 0)) = (abs‘𝐵)) |
| 11 | 10 | breq1d 5129 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → ((abs‘(𝐵 − 0)) < 𝑥 ↔ (abs‘𝐵) < 𝑥)) |
| 12 | 8, 11 | sylan2 593 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑗 ∈ 𝑍 ∧ 𝑘 ∈ (ℤ≥‘𝑗))) → ((abs‘(𝐵 − 0)) < 𝑥 ↔ (abs‘𝐵) < 𝑥)) |
| 13 | 12 | anassrs 467 | . . . . 5 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ 𝑘 ∈ (ℤ≥‘𝑗)) → ((abs‘(𝐵 − 0)) < 𝑥 ↔ (abs‘𝐵) < 𝑥)) |
| 14 | 13 | ralbidva 3161 | . . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (∀𝑘 ∈ (ℤ≥‘𝑗)(abs‘(𝐵 − 0)) < 𝑥 ↔ ∀𝑘 ∈ (ℤ≥‘𝑗)(abs‘𝐵) < 𝑥)) |
| 15 | 14 | rexbidva 3162 | . . 3 ⊢ (𝜑 → (∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(abs‘(𝐵 − 0)) < 𝑥 ↔ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(abs‘𝐵) < 𝑥)) |
| 16 | 15 | ralbidv 3163 | . 2 ⊢ (𝜑 → (∀𝑥 ∈ ℝ+ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(abs‘(𝐵 − 0)) < 𝑥 ↔ ∀𝑥 ∈ ℝ+ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(abs‘𝐵) < 𝑥)) |
| 17 | 7, 16 | bitrd 279 | 1 ⊢ (𝜑 → (𝐹 ⇝ 0 ↔ ∀𝑥 ∈ ℝ+ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(abs‘𝐵) < 𝑥)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1540 ∈ wcel 2108 ∀wral 3051 ∃wrex 3060 class class class wbr 5119 ‘cfv 6531 (class class class)co 7405 ℂcc 11127 0cc0 11129 < clt 11269 − cmin 11466 ℤcz 12588 ℤ≥cuz 12852 ℝ+crp 13008 abscabs 15253 ⇝ cli 15500 |
| 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 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2157 ax-12 2177 ax-ext 2707 ax-sep 5266 ax-nul 5276 ax-pow 5335 ax-pr 5402 ax-un 7729 ax-cnex 11185 ax-resscn 11186 ax-1cn 11187 ax-icn 11188 ax-addcl 11189 ax-addrcl 11190 ax-mulcl 11191 ax-mulrcl 11192 ax-mulcom 11193 ax-addass 11194 ax-mulass 11195 ax-distr 11196 ax-i2m1 11197 ax-1ne0 11198 ax-1rid 11199 ax-rnegex 11200 ax-rrecex 11201 ax-cnre 11202 ax-pre-lttri 11203 ax-pre-lttrn 11204 ax-pre-ltadd 11205 |
| 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 2065 df-mo 2539 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2809 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3061 df-reu 3360 df-rab 3416 df-v 3461 df-sbc 3766 df-csb 3875 df-dif 3929 df-un 3931 df-in 3933 df-ss 3943 df-nul 4309 df-if 4501 df-pw 4577 df-sn 4602 df-pr 4604 df-op 4608 df-uni 4884 df-br 5120 df-opab 5182 df-mpt 5202 df-id 5548 df-po 5561 df-so 5562 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-iota 6484 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-riota 7362 df-ov 7408 df-oprab 7409 df-mpo 7410 df-er 8719 df-en 8960 df-dom 8961 df-sdom 8962 df-pnf 11271 df-mnf 11272 df-xr 11273 df-ltxr 11274 df-le 11275 df-sub 11468 df-neg 11469 df-z 12589 df-uz 12853 df-clim 15504 |
| This theorem is referenced by: climabs0 15601 serf0 15697 iseralt 15701 lmclim2 37782 geomcau 37783 fourierdlem103 46238 fourierdlem104 46239 |
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