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| Mirrors > Home > MPE Home > Th. List > Mathboxes > xlimconst | Structured version Visualization version GIF version | ||
| Description: A constant sequence converges to its value, w.r.t. the standard topology on the extended reals. (Contributed by Glauco Siliprandi, 5-Feb-2022.) |
| Ref | Expression |
|---|---|
| xlimconst.p | ⊢ Ⅎ𝑘𝜑 |
| xlimconst.k | ⊢ Ⅎ𝑘𝐹 |
| xlimconst.m | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
| xlimconst.z | ⊢ 𝑍 = (ℤ≥‘𝑀) |
| xlimconst.f | ⊢ (𝜑 → 𝐹 Fn 𝑍) |
| xlimconst.a | ⊢ (𝜑 → 𝐴 ∈ ℝ*) |
| xlimconst.e | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) = 𝐴) |
| Ref | Expression |
|---|---|
| xlimconst | ⊢ (𝜑 → 𝐹~~>*𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xlimconst.p | . . . 4 ⊢ Ⅎ𝑘𝜑 | |
| 2 | xlimconst.k | . . . 4 ⊢ Ⅎ𝑘𝐹 | |
| 3 | xlimconst.f | . . . 4 ⊢ (𝜑 → 𝐹 Fn 𝑍) | |
| 4 | xlimconst.a | . . . 4 ⊢ (𝜑 → 𝐴 ∈ ℝ*) | |
| 5 | xlimconst.e | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) = 𝐴) | |
| 6 | 1, 2, 3, 4, 5 | fconst7 45962 | . . 3 ⊢ (𝜑 → 𝐹 = (𝑍 × {𝐴})) |
| 7 | letopon 23343 | . . . 4 ⊢ (ordTop‘ ≤ ) ∈ (TopOn‘ℝ*) | |
| 8 | xlimconst.m | . . . 4 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
| 9 | xlimconst.z | . . . . 5 ⊢ 𝑍 = (ℤ≥‘𝑀) | |
| 10 | 9 | lmconst 23399 | . . . 4 ⊢ (((ordTop‘ ≤ ) ∈ (TopOn‘ℝ*) ∧ 𝐴 ∈ ℝ* ∧ 𝑀 ∈ ℤ) → (𝑍 × {𝐴})(⇝𝑡‘(ordTop‘ ≤ ))𝐴) |
| 11 | 7, 4, 8, 10 | mp3an2i 1495 | . . 3 ⊢ (𝜑 → (𝑍 × {𝐴})(⇝𝑡‘(ordTop‘ ≤ ))𝐴) |
| 12 | 6, 11 | eqbrtrd 5134 | . 2 ⊢ (𝜑 → 𝐹(⇝𝑡‘(ordTop‘ ≤ ))𝐴) |
| 13 | df-xlim 46516 | . . 3 ⊢ ~~>* = (⇝𝑡‘(ordTop‘ ≤ )) | |
| 14 | 13 | breqi 5116 | . 2 ⊢ (𝐹~~>*𝐴 ↔ 𝐹(⇝𝑡‘(ordTop‘ ≤ ))𝐴) |
| 15 | 12, 14 | sylibr 237 | 1 ⊢ (𝜑 → 𝐹~~>*𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 = wceq 1570 Ⅎwnf 1813 ∈ wcel 2143 Ⅎwnfc 2910 {csn 4590 class class class wbr 5110 × cxp 5661 Fn wfn 6533 ‘cfv 6538 ℝ*cxr 11243 ≤ cle 11245 ℤcz 12592 ℤ≥cuz 12863 ordTopcordt 17554 TopOnctopon 23048 ⇝𝑡clm 23364 ~~>*clsxlim 46515 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5258 ax-nul 5270 ax-pow 5338 ax-pr 5406 ax-un 7734 ax-cnex 11157 ax-resscn 11158 ax-pre-lttri 11175 ax-pre-lttrn 11176 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3746 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-int 4914 df-iun 4959 df-br 5111 df-opab 5175 df-mpt 5194 df-tr 5220 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7864 df-1st 7987 df-2nd 7988 df-1o 8454 df-2o 8455 df-er 8695 df-pm 8828 df-en 8945 df-dom 8946 df-sdom 8947 df-fin 8948 df-fi 9372 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-neg 11445 df-z 12593 df-uz 12864 df-topgen 17497 df-ordt 17556 df-ps 18623 df-tsr 18624 df-top 23032 df-topon 23049 df-bases 23084 df-lm 23367 df-xlim 46516 |
| This theorem is referenced by: xlimconst2 46532 |
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