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| Mirrors > Home > MPE Home > Th. List > Mathboxes > climresdm | Structured version Visualization version GIF version | ||
| Description: A real function converges iff its restriction to an upper integers set converges. (Contributed by Glauco Siliprandi, 23-Apr-2023.) |
| Ref | Expression |
|---|---|
| climresdm.1 | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
| climresdm.2 | ⊢ (𝜑 → 𝐹 ∈ 𝑉) |
| Ref | Expression |
|---|---|
| climresdm | ⊢ (𝜑 → (𝐹 ∈ dom ⇝ ↔ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ )) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | resexg 5986 | . . . 4 ⊢ (𝐹 ∈ dom ⇝ → (𝐹 ↾ (ℤ≥‘𝑀)) ∈ V) | |
| 2 | 1 | adantl 483 | . . 3 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → (𝐹 ↾ (ℤ≥‘𝑀)) ∈ V) |
| 3 | fvexd 6846 | . . 3 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → ( ⇝ ‘𝐹) ∈ V) | |
| 4 | climdm 15511 | . . . . 5 ⊢ (𝐹 ∈ dom ⇝ ↔ 𝐹 ⇝ ( ⇝ ‘𝐹)) | |
| 5 | 4 | bilani 506 | . . . 4 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐹 ⇝ ( ⇝ ‘𝐹)) |
| 6 | climresdm.1 | . . . . . 6 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
| 7 | 6 | adantr 482 | . . . . 5 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝑀 ∈ ℤ) |
| 8 | simpr 486 | . . . . 5 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐹 ∈ dom ⇝ ) | |
| 9 | 7, 8 | climresd 46306 | . . . 4 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → ((𝐹 ↾ (ℤ≥‘𝑀)) ⇝ ( ⇝ ‘𝐹) ↔ 𝐹 ⇝ ( ⇝ ‘𝐹))) |
| 10 | 5, 9 | mpbird 259 | . . 3 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → (𝐹 ↾ (ℤ≥‘𝑀)) ⇝ ( ⇝ ‘𝐹)) |
| 11 | 2, 3, 10 | breldmd 5861 | . 2 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) |
| 12 | climresdm.2 | . . . 4 ⊢ (𝜑 → 𝐹 ∈ 𝑉) | |
| 13 | 12 | adantr 482 | . . 3 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → 𝐹 ∈ 𝑉) |
| 14 | fvexd 6846 | . . 3 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀))) ∈ V) | |
| 15 | climdm 15511 | . . . . 5 ⊢ ((𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ↔ (𝐹 ↾ (ℤ≥‘𝑀)) ⇝ ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀)))) | |
| 16 | 15 | bilani 506 | . . . 4 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → (𝐹 ↾ (ℤ≥‘𝑀)) ⇝ ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀)))) |
| 17 | 6 | adantr 482 | . . . . 5 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → 𝑀 ∈ ℤ) |
| 18 | 17, 13 | climresd 46306 | . . . 4 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → ((𝐹 ↾ (ℤ≥‘𝑀)) ⇝ ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀))) ↔ 𝐹 ⇝ ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀))))) |
| 19 | 16, 18 | mpbid 234 | . . 3 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → 𝐹 ⇝ ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀)))) |
| 20 | 13, 14, 19 | breldmd 5861 | . 2 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → 𝐹 ∈ dom ⇝ ) |
| 21 | 11, 20 | impbida 807 | 1 ⊢ (𝜑 → (𝐹 ∈ dom ⇝ ↔ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ )) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 397 ∈ wcel 2121 Vcvv 3433 class class class wbr 5075 dom cdm 5621 ↾ cres 5623 ‘cfv 6489 ℤcz 12519 ℤ≥cuz 12783 ⇝ cli 15441 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-10 2154 ax-11 2170 ax-12 2191 ax-ext 2713 ax-sep 5221 ax-nul 5231 ax-pow 5297 ax-pr 5365 ax-un 7682 ax-cnex 11089 ax-resscn 11090 ax-1cn 11091 ax-icn 11092 ax-addcl 11093 ax-addrcl 11094 ax-mulcl 11095 ax-mulrcl 11096 ax-mulcom 11097 ax-addass 11098 ax-mulass 11099 ax-distr 11100 ax-i2m1 11101 ax-1ne0 11102 ax-1rid 11103 ax-rnegex 11104 ax-rrecex 11105 ax-cnre 11106 ax-pre-lttri 11107 ax-pre-lttrn 11108 ax-pre-ltadd 11109 ax-pre-mulgt0 11110 ax-pre-sup 11111 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3or 1094 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-nf 1792 df-sb 2075 df-mo 2545 df-eu 2575 df-clab 2720 df-cleq 2733 df-clel 2816 df-nfc 2890 df-ne 2937 df-nel 3041 df-ral 3056 df-rex 3066 df-rmo 3346 df-reu 3347 df-rab 3394 df-v 3435 df-sbc 3726 df-csb 3834 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-pss 3905 df-nul 4265 df-if 4458 df-pw 4534 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4842 df-iun 4926 df-br 5076 df-opab 5138 df-mpt 5157 df-tr 5183 df-id 5516 df-eprel 5521 df-po 5529 df-so 5530 df-fr 5574 df-we 5576 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-rn 5632 df-res 5633 df-ima 5634 df-pred 6256 df-ord 6317 df-on 6318 df-lim 6319 df-suc 6320 df-iota 6445 df-fun 6491 df-fn 6492 df-f 6493 df-f1 6494 df-fo 6495 df-f1o 6496 df-fv 6497 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-2nd 7936 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-er 8637 df-en 8888 df-dom 8889 df-sdom 8890 df-sup 9349 df-pnf 11176 df-mnf 11177 df-xr 11178 df-ltxr 11179 df-le 11180 df-sub 11374 df-neg 11375 df-div 11803 df-nn 12170 df-2 12239 df-3 12240 df-n0 12433 df-z 12520 df-uz 12784 df-rp 12938 df-seq 13959 df-exp 14019 df-cj 15056 df-re 15057 df-im 15058 df-sqrt 15192 df-abs 15193 df-clim 15445 |
| This theorem is referenced by: (None) |
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