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| Mirrors > Home > MPE Home > Th. List > limsupcl | Structured version Visualization version GIF version | ||
| Description: Closure of the superior limit. (Contributed by NM, 26-Oct-2005.) (Revised by AV, 12-Sep-2020.) |
| Ref | Expression |
|---|---|
| limsupcl | ⊢ (𝐹 ∈ 𝑉 → (lim sup‘𝐹) ∈ ℝ*) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elex 3450 | . 2 ⊢ (𝐹 ∈ 𝑉 → 𝐹 ∈ V) | |
| 2 | df-limsup 15433 | . . . 4 ⊢ lim sup = (𝑓 ∈ V ↦ inf(ran (𝑘 ∈ ℝ ↦ sup(((𝑓 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )), ℝ*, < )) | |
| 3 | eqid 2736 | . . . . . . 7 ⊢ (𝑘 ∈ ℝ ↦ sup(((𝑓 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )) = (𝑘 ∈ ℝ ↦ sup(((𝑓 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )) | |
| 4 | inss2 4178 | . . . . . . . 8 ⊢ ((𝑓 “ (𝑘[,)+∞)) ∩ ℝ*) ⊆ ℝ* | |
| 5 | supxrcl 13267 | . . . . . . . 8 ⊢ (((𝑓 “ (𝑘[,)+∞)) ∩ ℝ*) ⊆ ℝ* → sup(((𝑓 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < ) ∈ ℝ*) | |
| 6 | 4, 5 | mp1i 13 | . . . . . . 7 ⊢ (𝑘 ∈ ℝ → sup(((𝑓 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < ) ∈ ℝ*) |
| 7 | 3, 6 | fmpti 7064 | . . . . . 6 ⊢ (𝑘 ∈ ℝ ↦ sup(((𝑓 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )):ℝ⟶ℝ* |
| 8 | frn 6675 | . . . . . 6 ⊢ ((𝑘 ∈ ℝ ↦ sup(((𝑓 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )):ℝ⟶ℝ* → ran (𝑘 ∈ ℝ ↦ sup(((𝑓 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )) ⊆ ℝ*) | |
| 9 | 7, 8 | ax-mp 5 | . . . . 5 ⊢ ran (𝑘 ∈ ℝ ↦ sup(((𝑓 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )) ⊆ ℝ* |
| 10 | infxrcl 13286 | . . . . 5 ⊢ (ran (𝑘 ∈ ℝ ↦ sup(((𝑓 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )) ⊆ ℝ* → inf(ran (𝑘 ∈ ℝ ↦ sup(((𝑓 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )), ℝ*, < ) ∈ ℝ*) | |
| 11 | 9, 10 | mp1i 13 | . . . 4 ⊢ (𝑓 ∈ V → inf(ran (𝑘 ∈ ℝ ↦ sup(((𝑓 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )), ℝ*, < ) ∈ ℝ*) |
| 12 | 2, 11 | fmpti 7064 | . . 3 ⊢ lim sup:V⟶ℝ* |
| 13 | 12 | ffvelcdmi 7035 | . 2 ⊢ (𝐹 ∈ V → (lim sup‘𝐹) ∈ ℝ*) |
| 14 | 1, 13 | syl 17 | 1 ⊢ (𝐹 ∈ 𝑉 → (lim sup‘𝐹) ∈ ℝ*) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 Vcvv 3429 ∩ cin 3888 ⊆ wss 3889 ↦ cmpt 5166 ran crn 5632 “ cima 5634 ⟶wf 6494 ‘cfv 6498 (class class class)co 7367 supcsup 9353 infcinf 9354 ℝcr 11037 +∞cpnf 11176 ℝ*cxr 11178 < clt 11179 [,)cico 13300 lim supclsp 15432 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-cnex 11094 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 ax-pre-sup 11116 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3062 df-rmo 3342 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-mpt 5167 df-id 5526 df-po 5539 df-so 5540 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-er 8643 df-en 8894 df-dom 8895 df-sdom 8896 df-sup 9355 df-inf 9356 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-limsup 15433 |
| This theorem is referenced by: limsuplt 15441 limsupbnd1 15444 caucvgrlem 15635 limsupre 46069 limsupcld 46118 limsupcli 46185 limsupval4 46222 liminfreuzlem 46230 |
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