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| Mirrors > Home > MPE Home > Th. List > Mathboxes > lmdvglim | Structured version Visualization version GIF version | ||
| Description: If a monotonic real number sequence 𝐹 diverges, it converges in the extended real numbers and its limit is plus infinity. (Contributed by Thierry Arnoux, 3-Aug-2017.) |
| Ref | Expression |
|---|---|
| lmdvglim.j | ⊢ 𝐽 = (TopOpen‘(ℝ*𝑠 ↾s (0[,]+∞))) |
| lmdvglim.1 | ⊢ (𝜑 → 𝐹:ℕ⟶(0[,)+∞)) |
| lmdvglim.2 | ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → (𝐹‘𝑘) ≤ (𝐹‘(𝑘 + 1))) |
| lmdvglim.3 | ⊢ (𝜑 → ¬ 𝐹 ∈ dom ⇝ ) |
| Ref | Expression |
|---|---|
| lmdvglim | ⊢ (𝜑 → 𝐹(⇝𝑡‘𝐽)+∞) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lmdvglim.1 | . . 3 ⊢ (𝜑 → 𝐹:ℕ⟶(0[,)+∞)) | |
| 2 | lmdvglim.2 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → (𝐹‘𝑘) ≤ (𝐹‘(𝑘 + 1))) | |
| 3 | lmdvglim.3 | . . 3 ⊢ (𝜑 → ¬ 𝐹 ∈ dom ⇝ ) | |
| 4 | 1, 2, 3 | lmdvg 34313 | . 2 ⊢ (𝜑 → ∀𝑥 ∈ ℝ ∃𝑗 ∈ ℕ ∀𝑘 ∈ (ℤ≥‘𝑗)𝑥 < (𝐹‘𝑘)) |
| 5 | lmdvglim.j | . . 3 ⊢ 𝐽 = (TopOpen‘(ℝ*𝑠 ↾s (0[,]+∞))) | |
| 6 | icossicc 13466 | . . . 4 ⊢ (0[,)+∞) ⊆ (0[,]+∞) | |
| 7 | fss 6726 | . . . 4 ⊢ ((𝐹:ℕ⟶(0[,)+∞) ∧ (0[,)+∞) ⊆ (0[,]+∞)) → 𝐹:ℕ⟶(0[,]+∞)) | |
| 8 | 1, 6, 7 | sylancl 597 | . . 3 ⊢ (𝜑 → 𝐹:ℕ⟶(0[,]+∞)) |
| 9 | eqidd 2771 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → (𝐹‘𝑘) = (𝐹‘𝑘)) | |
| 10 | 5, 8, 9 | lmxrge0 34312 | . 2 ⊢ (𝜑 → (𝐹(⇝𝑡‘𝐽)+∞ ↔ ∀𝑥 ∈ ℝ ∃𝑗 ∈ ℕ ∀𝑘 ∈ (ℤ≥‘𝑗)𝑥 < (𝐹‘𝑘))) |
| 11 | 4, 10 | mpbird 260 | 1 ⊢ (𝜑 → 𝐹(⇝𝑡‘𝐽)+∞) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 400 = wceq 1568 ∈ wcel 2150 ∀wral 3086 ∃wrex 3096 ⊆ wss 3913 class class class wbr 5114 dom cdm 5665 ⟶wf 6536 ‘cfv 6540 (class class class)co 7414 ℝcr 11102 0cc0 11103 1c1 11104 + caddc 11106 +∞cpnf 11243 < clt 11246 ≤ cle 11247 ℕcn 12236 ℤ≥cuz 12865 [,)cico 13377 [,]cicc 13378 ⇝ cli 15538 ↾s cress 17293 TopOpenctopn 17477 ℝ*𝑠cxrs 17557 ⇝𝑡clm 23366 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2152 ax-9 2160 ax-10 2183 ax-11 2199 ax-12 2220 ax-ext 2742 ax-rep 5243 ax-sep 5262 ax-nul 5274 ax-pow 5340 ax-pr 5408 ax-un 7736 ax-cnex 11159 ax-resscn 11160 ax-1cn 11161 ax-icn 11162 ax-addcl 11163 ax-addrcl 11164 ax-mulcl 11165 ax-mulrcl 11166 ax-mulcom 11167 ax-addass 11168 ax-mulass 11169 ax-distr 11170 ax-i2m1 11171 ax-1ne0 11172 ax-1rid 11173 ax-rnegex 11174 ax-rrecex 11175 ax-cnre 11176 ax-pre-lttri 11177 ax-pre-lttrn 11178 ax-pre-ltadd 11179 ax-pre-mulgt0 11180 ax-pre-sup 11181 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-nf 1812 df-sb 2099 df-mo 2574 df-eu 2604 df-clab 2749 df-cleq 2762 df-clel 2845 df-nfc 2919 df-ne 2966 df-nel 3072 df-ral 3087 df-rex 3097 df-rmo 3376 df-reu 3377 df-rab 3424 df-v 3464 df-sbc 3753 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-pss 3933 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-tp 4599 df-op 4601 df-uni 4878 df-int 4918 df-iun 4963 df-br 5115 df-opab 5179 df-mpt 5198 df-tr 5224 df-id 5560 df-eprel 5565 df-po 5573 df-so 5574 df-fr 5618 df-we 5620 df-xp 5671 df-rel 5672 df-cnv 5673 df-co 5674 df-dm 5675 df-rn 5676 df-res 5677 df-ima 5678 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7371 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7866 df-1st 7989 df-2nd 7990 df-frecs 8281 df-wrecs 8312 df-recs 8361 df-rdg 8400 df-1o 8456 df-2o 8457 df-er 8697 df-pm 8830 df-en 8947 df-dom 8948 df-sdom 8949 df-fin 8950 df-fi 9374 df-sup 9405 df-pnf 11248 df-mnf 11249 df-xr 11250 df-ltxr 11251 df-le 11252 df-sub 11446 df-neg 11447 df-div 11875 df-nn 12237 df-2 12306 df-3 12307 df-4 12308 df-5 12309 df-6 12310 df-7 12311 df-8 12312 df-9 12313 df-n0 12508 df-z 12595 df-dec 12715 df-uz 12866 df-rp 13020 df-ioo 13379 df-ioc 13380 df-ico 13381 df-icc 13382 df-fz 13539 df-seq 14041 df-exp 14101 df-cj 15153 df-re 15154 df-im 15155 df-sqrt 15289 df-abs 15290 df-clim 15542 df-struct 17210 df-sets 17227 df-slot 17245 df-ndx 17257 df-base 17273 df-ress 17294 df-plusg 17326 df-mulr 17327 df-tset 17332 df-ple 17333 df-ds 17335 df-rest 17478 df-topn 17479 df-topgen 17499 df-ordt 17558 df-xrs 17559 df-ps 18625 df-tsr 18626 df-top 23034 df-topon 23051 df-bases 23086 df-lm 23369 |
| This theorem is referenced by: esumcvg 34446 |
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