| Mathbox for Glauco Siliprandi |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > liminflelimsupuz | Structured version Visualization version GIF version | ||
| Description: The superior limit is greater than or equal to the inferior limit. (Contributed by Glauco Siliprandi, 2-Jan-2022.) |
| Ref | Expression |
|---|---|
| liminflelimsupuz.1 | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
| liminflelimsupuz.2 | ⊢ 𝑍 = (ℤ≥‘𝑀) |
| liminflelimsupuz.3 | ⊢ (𝜑 → 𝐹:𝑍⟶ℝ*) |
| Ref | Expression |
|---|---|
| liminflelimsupuz | ⊢ (𝜑 → (lim inf‘𝐹) ≤ (lim sup‘𝐹)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | liminflelimsupuz.3 | . . 3 ⊢ (𝜑 → 𝐹:𝑍⟶ℝ*) | |
| 2 | liminflelimsupuz.2 | . . . . 5 ⊢ 𝑍 = (ℤ≥‘𝑀) | |
| 3 | 2 | fvexi 6841 | . . . 4 ⊢ 𝑍 ∈ V |
| 4 | 3 | a1i 11 | . . 3 ⊢ (𝜑 → 𝑍 ∈ V) |
| 5 | 1, 4 | fexd 7171 | . 2 ⊢ (𝜑 → 𝐹 ∈ V) |
| 6 | liminflelimsupuz.1 | . . . 4 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
| 7 | 6, 2 | uzubico2 46013 | . . 3 ⊢ (𝜑 → ∀𝑘 ∈ ℝ ∃𝑗 ∈ (𝑘[,)+∞)𝑗 ∈ 𝑍) |
| 8 | 1 | ffnd 6656 | . . . . . . . . . . 11 ⊢ (𝜑 → 𝐹 Fn 𝑍) |
| 9 | 8 | adantr 481 | . . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝐹 Fn 𝑍) |
| 10 | simpr 485 | . . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝑗 ∈ 𝑍) | |
| 11 | id 22 | . . . . . . . . . . . . 13 ⊢ (𝑗 ∈ 𝑍 → 𝑗 ∈ 𝑍) | |
| 12 | 2, 11 | uzxrd 45905 | . . . . . . . . . . . 12 ⊢ (𝑗 ∈ 𝑍 → 𝑗 ∈ ℝ*) |
| 13 | pnfxr 11190 | . . . . . . . . . . . . 13 ⊢ +∞ ∈ ℝ* | |
| 14 | 13 | a1i 11 | . . . . . . . . . . . 12 ⊢ (𝑗 ∈ 𝑍 → +∞ ∈ ℝ*) |
| 15 | 12 | xrleidd 13094 | . . . . . . . . . . . 12 ⊢ (𝑗 ∈ 𝑍 → 𝑗 ≤ 𝑗) |
| 16 | 2, 11 | uzred 45886 | . . . . . . . . . . . . 13 ⊢ (𝑗 ∈ 𝑍 → 𝑗 ∈ ℝ) |
| 17 | ltpnf 13062 | . . . . . . . . . . . . 13 ⊢ (𝑗 ∈ ℝ → 𝑗 < +∞) | |
| 18 | 16, 17 | syl 17 | . . . . . . . . . . . 12 ⊢ (𝑗 ∈ 𝑍 → 𝑗 < +∞) |
| 19 | 12, 14, 12, 15, 18 | elicod 13339 | . . . . . . . . . . 11 ⊢ (𝑗 ∈ 𝑍 → 𝑗 ∈ (𝑗[,)+∞)) |
| 20 | 19 | adantl 482 | . . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝑗 ∈ (𝑗[,)+∞)) |
| 21 | 9, 10, 20 | fnfvimad 7178 | . . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹‘𝑗) ∈ (𝐹 “ (𝑗[,)+∞))) |
| 22 | 1 | ffvelcdmda 7025 | . . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹‘𝑗) ∈ ℝ*) |
| 23 | 21, 22 | elind 4129 | . . . . . . . 8 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹‘𝑗) ∈ ((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*)) |
| 24 | 23 | ne0d 4270 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → ((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*) ≠ ∅) |
| 25 | 24 | ex 413 | . . . . . 6 ⊢ (𝜑 → (𝑗 ∈ 𝑍 → ((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*) ≠ ∅)) |
| 26 | 25 | ad2antrr 732 | . . . . 5 ⊢ (((𝜑 ∧ 𝑘 ∈ ℝ) ∧ 𝑗 ∈ (𝑘[,)+∞)) → (𝑗 ∈ 𝑍 → ((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*) ≠ ∅)) |
| 27 | 26 | reximdva 3152 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ ℝ) → (∃𝑗 ∈ (𝑘[,)+∞)𝑗 ∈ 𝑍 → ∃𝑗 ∈ (𝑘[,)+∞)((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*) ≠ ∅)) |
| 28 | 27 | ralimdva 3151 | . . 3 ⊢ (𝜑 → (∀𝑘 ∈ ℝ ∃𝑗 ∈ (𝑘[,)+∞)𝑗 ∈ 𝑍 → ∀𝑘 ∈ ℝ ∃𝑗 ∈ (𝑘[,)+∞)((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*) ≠ ∅)) |
| 29 | 7, 28 | mpd 15 | . 2 ⊢ (𝜑 → ∀𝑘 ∈ ℝ ∃𝑗 ∈ (𝑘[,)+∞)((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*) ≠ ∅) |
| 30 | 5, 29 | liminflelimsup 46219 | 1 ⊢ (𝜑 → (lim inf‘𝐹) ≤ (lim sup‘𝐹)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 396 = wceq 1547 ∈ wcel 2119 ≠ wne 2934 ∀wral 3053 ∃wrex 3063 Vcvv 3431 ∩ cin 3882 ∅c0 4261 class class class wbr 5072 “ cima 5621 Fn wfn 6480 ⟶wf 6481 ‘cfv 6485 (class class class)co 7356 ℝcr 11028 +∞cpnf 11167 ℝ*cxr 11169 < clt 11170 ≤ cle 11171 ℤcz 12515 ℤ≥cuz 12779 [,)cico 13291 lim supclsp 15423 lim infclsi 46194 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2711 ax-rep 5199 ax-sep 5218 ax-nul 5228 ax-pow 5294 ax-pr 5362 ax-un 7678 ax-cnex 11085 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-addrcl 11090 ax-mulcl 11091 ax-mulrcl 11092 ax-mulcom 11093 ax-addass 11094 ax-mulass 11095 ax-distr 11096 ax-i2m1 11097 ax-1ne0 11098 ax-1rid 11099 ax-rnegex 11100 ax-rrecex 11101 ax-cnre 11102 ax-pre-lttri 11103 ax-pre-lttrn 11104 ax-pre-ltadd 11105 ax-pre-mulgt0 11106 ax-pre-sup 11107 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3or 1093 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2718 df-cleq 2731 df-clel 2814 df-nfc 2888 df-ne 2935 df-nel 3039 df-ral 3054 df-rex 3064 df-rmo 3344 df-reu 3345 df-rab 3392 df-v 3433 df-sbc 3724 df-csb 3832 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3903 df-nul 4262 df-if 4455 df-pw 4531 df-sn 4556 df-pr 4558 df-op 4562 df-uni 4839 df-iun 4923 df-br 5073 df-opab 5135 df-mpt 5154 df-tr 5180 df-id 5513 df-eprel 5518 df-po 5526 df-so 5527 df-fr 5571 df-we 5573 df-xp 5624 df-rel 5625 df-cnv 5626 df-co 5627 df-dm 5628 df-rn 5629 df-res 5630 df-ima 5631 df-pred 6252 df-ord 6313 df-on 6314 df-lim 6315 df-suc 6316 df-iota 6441 df-fun 6487 df-fn 6488 df-f 6489 df-f1 6490 df-fo 6491 df-f1o 6492 df-fv 6493 df-riota 7313 df-ov 7359 df-oprab 7360 df-mpo 7361 df-om 7807 df-1st 7931 df-2nd 7932 df-frecs 8221 df-wrecs 8252 df-recs 8301 df-rdg 8339 df-er 8633 df-en 8884 df-dom 8885 df-sdom 8886 df-sup 9345 df-inf 9346 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-nn 12166 df-n0 12429 df-z 12516 df-uz 12780 df-ioo 13293 df-ico 13295 df-fl 13742 df-ceil 13743 df-limsup 15424 df-liminf 46195 |
| This theorem is referenced by: liminfgelimsupuz 46231 liminflimsupclim 46250 xlimliminflimsup 46305 |
| Copyright terms: Public domain | W3C validator |