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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 6014 | . . . 4 ⊢ (𝐹 ∈ dom ⇝ → (𝐹 ↾ (ℤ≥‘𝑀)) ∈ V) | |
| 2 | 1 | adantl 487 | . . 3 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → (𝐹 ↾ (ℤ≥‘𝑀)) ∈ V) |
| 3 | fvexd 6888 | . . 3 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → ( ⇝ ‘𝐹) ∈ V) | |
| 4 | climdm 15688 | . . . . 5 ⊢ (𝐹 ∈ dom ⇝ ↔ 𝐹 ⇝ ( ⇝ ‘𝐹)) | |
| 5 | 4 | bilani 510 | . . . 4 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐹 ⇝ ( ⇝ ‘𝐹)) |
| 6 | climresdm.1 | . . . . . 6 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
| 7 | 6 | adantr 486 | . . . . 5 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝑀 ∈ ℤ) |
| 8 | simpr 490 | . . . . 5 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐹 ∈ dom ⇝ ) | |
| 9 | 7, 8 | climresd 46781 | . . . 4 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → ((𝐹 ↾ (ℤ≥‘𝑀)) ⇝ ( ⇝ ‘𝐹) ↔ 𝐹 ⇝ ( ⇝ ‘𝐹))) |
| 10 | 5, 9 | mpbird 260 | . . 3 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → (𝐹 ↾ (ℤ≥‘𝑀)) ⇝ ( ⇝ ‘𝐹)) |
| 11 | 2, 3, 10 | breldmd 5890 | . 2 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) |
| 12 | climresdm.2 | . . . 4 ⊢ (𝜑 → 𝐹 ∈ 𝑉) | |
| 13 | 12 | adantr 486 | . . 3 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → 𝐹 ∈ 𝑉) |
| 14 | fvexd 6888 | . . 3 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀))) ∈ V) | |
| 15 | climdm 15688 | . . . . 5 ⊢ ((𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ↔ (𝐹 ↾ (ℤ≥‘𝑀)) ⇝ ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀)))) | |
| 16 | 15 | bilani 510 | . . . 4 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → (𝐹 ↾ (ℤ≥‘𝑀)) ⇝ ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀)))) |
| 17 | 6 | adantr 486 | . . . . 5 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → 𝑀 ∈ ℤ) |
| 18 | 17, 13 | climresd 46781 | . . . 4 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → ((𝐹 ↾ (ℤ≥‘𝑀)) ⇝ ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀))) ↔ 𝐹 ⇝ ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀))))) |
| 19 | 16, 18 | mpbid 235 | . . 3 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → 𝐹 ⇝ ( ⇝ ‘(𝐹 ↾ (ℤ≥‘𝑀)))) |
| 20 | 13, 14, 19 | breldmd 5890 | . 2 ⊢ ((𝜑 ∧ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ ) → 𝐹 ∈ dom ⇝ ) |
| 21 | 11, 20 | impbida 813 | 1 ⊢ (𝜑 → (𝐹 ∈ dom ⇝ ↔ (𝐹 ↾ (ℤ≥‘𝑀)) ∈ dom ⇝ )) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 ∈ wcel 2145 Vcvv 3450 class class class wbr 5102 dom cdm 5647 ↾ cres 5649 ‘cfv 6527 ℤcz 12662 ℤ≥cuz 12934 ⇝ cli 15618 |
| 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 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7734 ax-cnex 11227 ax-resscn 11228 ax-1cn 11229 ax-icn 11230 ax-addcl 11231 ax-addrcl 11232 ax-mulcl 11233 ax-mulrcl 11234 ax-mulcom 11235 ax-addass 11236 ax-mulass 11237 ax-distr 11238 ax-i2m1 11239 ax-1ne0 11240 ax-1rid 11241 ax-rnegex 11242 ax-rrecex 11243 ax-cnre 11244 ax-pre-lttri 11245 ax-pre-lttrn 11246 ax-pre-ltadd 11247 ax-pre-mulgt0 11248 ax-pre-sup 11249 |
| 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 3739 df-csb 3847 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-pss 3918 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5542 df-eprel 5547 df-po 5555 df-so 5556 df-fr 5600 df-we 5602 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-ima 5660 df-pred 6293 df-ord 6354 df-on 6355 df-lim 6356 df-suc 6357 df-iota 6483 df-fun 6529 df-fn 6530 df-f 6531 df-f1 6532 df-fo 6533 df-f1o 6534 df-fv 6535 df-riota 7365 df-ov 7411 df-oprab 7412 df-mpo 7413 df-om 7861 df-2nd 7985 df-frecs 8277 df-wrecs 8308 df-recs 8357 df-rdg 8396 df-er 8695 df-en 8952 df-dom 8953 df-sdom 8954 df-sup 9412 df-pnf 11316 df-mnf 11317 df-xr 11318 df-ltxr 11319 df-le 11320 df-sub 11514 df-neg 11515 df-div 11943 df-nn 12305 df-2 12374 df-3 12375 df-n0 12576 df-z 12663 df-uz 12935 df-rp 13090 df-seq 14113 df-exp 14173 df-cj 15233 df-re 15234 df-im 15235 df-sqrt 15369 df-abs 15370 df-clim 15622 |
| This theorem is used by: (None) |
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