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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 5996 | . . . 4 ⊢ (𝐹 ∈ dom ⇝ → (𝐹 ↾ (ℤ≥‘𝑀)) ∈ V) | |
| 2 | 1 | adantl 481 | . . 3 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → (𝐹 ↾ (ℤ≥‘𝑀)) ∈ V) |
| 3 | fvexd 6859 | . . 3 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → ( ⇝ ‘𝐹) ∈ V) | |
| 4 | climdm 15491 | . . . . . 6 ⊢ (𝐹 ∈ dom ⇝ ↔ 𝐹 ⇝ ( ⇝ ‘𝐹)) | |
| 5 | 4 | biimpi 216 | . . . . 5 ⊢ (𝐹 ∈ dom ⇝ → 𝐹 ⇝ ( ⇝ ‘𝐹)) |
| 6 | 5 | adantl 481 | . . . 4 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐹 ⇝ ( ⇝ ‘𝐹)) |
| 7 | climresdm.1 | . . . . . 6 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
| 8 | 7 | adantr 480 | . . . . 5 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝑀 ∈ ℤ) |
| 9 | simpr 484 | . . . . 5 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐹 ∈ dom ⇝ ) | |
| 10 | 8, 9 | climresd 46236 | . . . 4 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → ((𝐹 ↾ (ℤ≥‘𝑀)) ⇝ ( ⇝ ‘𝐹) ↔ 𝐹 ⇝ ( ⇝ ‘𝐹))) |
| 11 | 6, 10 | mpbird 257 | . . 3 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → (𝐹 ↾ (ℤ≥‘𝑀)) ⇝ ( ⇝ ‘𝐹)) |
| 12 | 2, 3, 11 | breldmd 5871 | . 2 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) |
| 13 | climresdm.2 | . . . 4 ⊢ (𝜑 → 𝐹 ∈ 𝑉) | |
| 14 | 13 | adantr 480 | . . 3 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → 𝐹 ∈ 𝑉) |
| 15 | fvexd 6859 | . . 3 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀))) ∈ V) | |
| 16 | climdm 15491 | . . . . . 6 ⊢ ((𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ↔ (𝐹 ↾ (ℤ≥‘𝑀)) ⇝ ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀)))) | |
| 17 | 16 | biimpi 216 | . . . . 5 ⊢ ((𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ → (𝐹 ↾ (ℤ≥‘𝑀)) ⇝ ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀)))) |
| 18 | 17 | adantl 481 | . . . 4 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → (𝐹 ↾ (ℤ≥‘𝑀)) ⇝ ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀)))) |
| 19 | 7 | adantr 480 | . . . . 5 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → 𝑀 ∈ ℤ) |
| 20 | 19, 14 | climresd 46236 | . . . 4 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → ((𝐹 ↾ (ℤ≥‘𝑀)) ⇝ ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀))) ↔ 𝐹 ⇝ ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀))))) |
| 21 | 18, 20 | mpbid 232 | . . 3 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → 𝐹 ⇝ ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀)))) |
| 22 | 14, 15, 21 | breldmd 5871 | . 2 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → 𝐹 ∈ dom ⇝ ) |
| 23 | 12, 22 | impbida 801 | 1 ⊢ (𝜑 → (𝐹 ∈ dom ⇝ ↔ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ )) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∈ wcel 2114 Vcvv 3442 class class class wbr 5100 dom cdm 5634 ↾ cres 5636 ‘cfv 6502 ℤcz 12502 ℤ≥cuz 12765 ⇝ cli 15421 |
| 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 2709 ax-sep 5245 ax-nul 5255 ax-pow 5314 ax-pr 5381 ax-un 7692 ax-cnex 11096 ax-resscn 11097 ax-1cn 11098 ax-icn 11099 ax-addcl 11100 ax-addrcl 11101 ax-mulcl 11102 ax-mulrcl 11103 ax-mulcom 11104 ax-addass 11105 ax-mulass 11106 ax-distr 11107 ax-i2m1 11108 ax-1ne0 11109 ax-1rid 11110 ax-rnegex 11111 ax-rrecex 11112 ax-cnre 11113 ax-pre-lttri 11114 ax-pre-lttrn 11115 ax-pre-ltadd 11116 ax-pre-mulgt0 11117 ax-pre-sup 11118 |
| 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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3352 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-pss 3923 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-iun 4950 df-br 5101 df-opab 5163 df-mpt 5182 df-tr 5208 df-id 5529 df-eprel 5534 df-po 5542 df-so 5543 df-fr 5587 df-we 5589 df-xp 5640 df-rel 5641 df-cnv 5642 df-co 5643 df-dm 5644 df-rn 5645 df-res 5646 df-ima 5647 df-pred 6269 df-ord 6330 df-on 6331 df-lim 6332 df-suc 6333 df-iota 6458 df-fun 6504 df-fn 6505 df-f 6506 df-f1 6507 df-fo 6508 df-f1o 6509 df-fv 6510 df-riota 7327 df-ov 7373 df-oprab 7374 df-mpo 7375 df-om 7821 df-2nd 7946 df-frecs 8235 df-wrecs 8266 df-recs 8315 df-rdg 8353 df-er 8647 df-en 8898 df-dom 8899 df-sdom 8900 df-sup 9359 df-pnf 11182 df-mnf 11183 df-xr 11184 df-ltxr 11185 df-le 11186 df-sub 11380 df-neg 11381 df-div 11809 df-nn 12160 df-2 12222 df-3 12223 df-n0 12416 df-z 12503 df-uz 12766 df-rp 12920 df-seq 13939 df-exp 13999 df-cj 15036 df-re 15037 df-im 15038 df-sqrt 15172 df-abs 15173 df-clim 15425 |
| This theorem is referenced by: (None) |
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