| Mathbox for Glauco Siliprandi |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > limsupres | Structured version Visualization version GIF version | ||
| Description: The superior limit of a restriction is less than or equal to the original superior limit. (Contributed by Glauco Siliprandi, 23-Oct-2021.) |
| Ref | Expression |
|---|---|
| limsupres.1 | ⊢ (𝜑 → 𝐹 ∈ 𝑉) |
| Ref | Expression |
|---|---|
| limsupres | ⊢ (𝜑 → (lim sup‘(𝐹 ↾ 𝐶)) ≤ (lim sup‘𝐹)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfv 1947 | . . 3 ⊢ Ⅎ𝑘𝜑 | |
| 2 | resimass 46072 | . . . . . . . 8 ⊢ ((𝐹 ↾ 𝐶) “ (𝑘[,)+∞)) ⊆ (𝐹 “ (𝑘[,)+∞)) | |
| 3 | 2 | a1i 11 | . . . . . . 7 ⊢ (𝑘 ∈ ℝ → ((𝐹 ↾ 𝐶) “ (𝑘[,)+∞)) ⊆ (𝐹 “ (𝑘[,)+∞))) |
| 4 | 3 | ssrind 4189 | . . . . . 6 ⊢ (𝑘 ∈ ℝ → (((𝐹 ↾ 𝐶) “ (𝑘[,)+∞)) ∩ ℝ*) ⊆ ((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*)) |
| 5 | 4 | adantl 487 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ ℝ) → (((𝐹 ↾ 𝐶) “ (𝑘[,)+∞)) ∩ ℝ*) ⊆ ((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*)) |
| 6 | inss2 4183 | . . . . . 6 ⊢ ((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*) ⊆ ℝ* | |
| 7 | 6 | a1i 11 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ ℝ) → ((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*) ⊆ ℝ*) |
| 8 | 5, 7 | sstrd 3941 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ ℝ) → (((𝐹 ↾ 𝐶) “ (𝑘[,)+∞)) ∩ ℝ*) ⊆ ℝ*) |
| 9 | 8 | supxrcld 45942 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ ℝ) → sup((((𝐹 ↾ 𝐶) “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < ) ∈ ℝ*) |
| 10 | 7 | supxrcld 45942 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ ℝ) → sup(((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < ) ∈ ℝ*) |
| 11 | supxrss 13387 | . . . 4 ⊢ (((((𝐹 ↾ 𝐶) “ (𝑘[,)+∞)) ∩ ℝ*) ⊆ ((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*) ∧ ((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*) ⊆ ℝ*) → sup((((𝐹 ↾ 𝐶) “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < ) ≤ sup(((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )) | |
| 12 | 5, 7, 11 | syl2anc 596 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ ℝ) → sup((((𝐹 ↾ 𝐶) “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < ) ≤ sup(((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )) |
| 13 | 1, 9, 10, 12 | infrnmptle 46254 | . 2 ⊢ (𝜑 → inf(ran (𝑘 ∈ ℝ ↦ sup((((𝐹 ↾ 𝐶) “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )), ℝ*, < ) ≤ inf(ran (𝑘 ∈ ℝ ↦ sup(((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )), ℝ*, < )) |
| 14 | limsupres.1 | . . . . 5 ⊢ (𝜑 → 𝐹 ∈ 𝑉) | |
| 15 | 14 | resexd 6021 | . . . 4 ⊢ (𝜑 → (𝐹 ↾ 𝐶) ∈ V) |
| 16 | eqid 2760 | . . . . 5 ⊢ (𝑘 ∈ ℝ ↦ sup((((𝐹 ↾ 𝐶) “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )) = (𝑘 ∈ ℝ ↦ sup((((𝐹 ↾ 𝐶) “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )) | |
| 17 | 16 | limsupval 15564 | . . . 4 ⊢ ((𝐹 ↾ 𝐶) ∈ V → (lim sup‘(𝐹 ↾ 𝐶)) = inf(ran (𝑘 ∈ ℝ ↦ sup((((𝐹 ↾ 𝐶) “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )), ℝ*, < )) |
| 18 | 15, 17 | syl 18 | . . 3 ⊢ (𝜑 → (lim sup‘(𝐹 ↾ 𝐶)) = inf(ran (𝑘 ∈ ℝ ↦ sup((((𝐹 ↾ 𝐶) “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )), ℝ*, < )) |
| 19 | eqid 2760 | . . . . 5 ⊢ (𝑘 ∈ ℝ ↦ sup(((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )) = (𝑘 ∈ ℝ ↦ sup(((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )) | |
| 20 | 19 | limsupval 15564 | . . . 4 ⊢ (𝐹 ∈ 𝑉 → (lim sup‘𝐹) = inf(ran (𝑘 ∈ ℝ ↦ sup(((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )), ℝ*, < )) |
| 21 | 14, 20 | syl 18 | . . 3 ⊢ (𝜑 → (lim sup‘𝐹) = inf(ran (𝑘 ∈ ℝ ↦ sup(((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )), ℝ*, < )) |
| 22 | 18, 21 | breq12d 5116 | . 2 ⊢ (𝜑 → ((lim sup‘(𝐹 ↾ 𝐶)) ≤ (lim sup‘𝐹) ↔ inf(ran (𝑘 ∈ ℝ ↦ sup((((𝐹 ↾ 𝐶) “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )), ℝ*, < ) ≤ inf(ran (𝑘 ∈ ℝ ↦ sup(((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )), ℝ*, < ))) |
| 23 | 13, 22 | mpbird 260 | 1 ⊢ (𝜑 → (lim sup‘(𝐹 ↾ 𝐶)) ≤ (lim sup‘𝐹)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 Vcvv 3450 ∩ cin 3898 ⊆ wss 3899 class class class wbr 5103 ↦ cmpt 5186 ran crn 5656 ↾ cres 5657 “ cima 5658 ‘cfv 6533 (class class class)co 7414 supcsup 9413 infcinf 9414 ℝcr 11126 +∞cpnf 11267 ℝ*cxr 11269 < clt 11270 ≤ cle 11271 [,)cico 13403 lim supclsp 15560 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7737 ax-cnex 11183 ax-resscn 11184 ax-1cn 11185 ax-icn 11186 ax-addcl 11187 ax-addrcl 11188 ax-mulcl 11189 ax-mulrcl 11190 ax-mulcom 11191 ax-addass 11192 ax-mulass 11193 ax-distr 11194 ax-i2m1 11195 ax-1ne0 11196 ax-1rid 11197 ax-rnegex 11198 ax-rrecex 11199 ax-cnre 11200 ax-pre-lttri 11201 ax-pre-lttrn 11202 ax-pre-ltadd 11203 ax-pre-mulgt0 11204 ax-pre-sup 11205 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5550 df-po 5563 df-so 5564 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7371 df-ov 7417 df-oprab 7418 df-mpo 7419 df-er 8699 df-en 8956 df-dom 8957 df-sdom 8958 df-sup 9415 df-inf 9416 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11470 df-neg 11471 df-limsup 15561 |
| This theorem is used by: (None) |
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