| Mathbox for Glauco Siliprandi |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > climfveqf | Structured version Visualization version GIF version | ||
| Description: Two functions that are eventually equal to one another have the same limit. (Contributed by Glauco Siliprandi, 23-Oct-2021.) |
| Ref | Expression |
|---|---|
| climfveqf.p | ⊢ Ⅎ𝑘𝜑 |
| climfveqf.n | ⊢ Ⅎ𝑘𝐹 |
| climfveqf.o | ⊢ Ⅎ𝑘𝐺 |
| climfveqf.z | ⊢ 𝑍 = (ℤ≥‘𝑀) |
| climfveqf.f | ⊢ (𝜑 → 𝐹 ∈ 𝑉) |
| climfveqf.g | ⊢ (𝜑 → 𝐺 ∈ 𝑊) |
| climfveqf.m | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
| climfveqf.e | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) = (𝐺‘𝑘)) |
| Ref | Expression |
|---|---|
| climfveqf | ⊢ (𝜑 → ( ⇝ ‘𝐹) = ( ⇝ ‘𝐺)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | climdm 15593 | . . . 4 ⊢ (𝐹 ∈ dom ⇝ ↔ 𝐹 ⇝ ( ⇝ ‘𝐹)) | |
| 2 | 1 | bilani 509 | . . 3 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐹 ⇝ ( ⇝ ‘𝐹)) |
| 3 | 2, 1 | sylibr 237 | . . . . . 6 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐹 ∈ dom ⇝ ) |
| 4 | climfveqf.z | . . . . . . . 8 ⊢ 𝑍 = (ℤ≥‘𝑀) | |
| 5 | climfveqf.f | . . . . . . . 8 ⊢ (𝜑 → 𝐹 ∈ 𝑉) | |
| 6 | climfveqf.g | . . . . . . . 8 ⊢ (𝜑 → 𝐺 ∈ 𝑊) | |
| 7 | climfveqf.m | . . . . . . . 8 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
| 8 | climfveqf.p | . . . . . . . . . . 11 ⊢ Ⅎ𝑘𝜑 | |
| 9 | nfcv 2927 | . . . . . . . . . . . 12 ⊢ Ⅎ𝑘𝑗 | |
| 10 | 9 | nfel1 2943 | . . . . . . . . . . 11 ⊢ Ⅎ𝑘 𝑗 ∈ 𝑍 |
| 11 | 8, 10 | nfan 1922 | . . . . . . . . . 10 ⊢ Ⅎ𝑘(𝜑 ∧ 𝑗 ∈ 𝑍) |
| 12 | climfveqf.n | . . . . . . . . . . . 12 ⊢ Ⅎ𝑘𝐹 | |
| 13 | 12, 9 | nffv 6881 | . . . . . . . . . . 11 ⊢ Ⅎ𝑘(𝐹‘𝑗) |
| 14 | climfveqf.o | . . . . . . . . . . . 12 ⊢ Ⅎ𝑘𝐺 | |
| 15 | 14, 9 | nffv 6881 | . . . . . . . . . . 11 ⊢ Ⅎ𝑘(𝐺‘𝑗) |
| 16 | 13, 15 | nfeq 2940 | . . . . . . . . . 10 ⊢ Ⅎ𝑘(𝐹‘𝑗) = (𝐺‘𝑗) |
| 17 | 11, 16 | nfim 1919 | . . . . . . . . 9 ⊢ Ⅎ𝑘((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹‘𝑗) = (𝐺‘𝑗)) |
| 18 | eleq1w 2848 | . . . . . . . . . . 11 ⊢ (𝑘 = 𝑗 → (𝑘 ∈ 𝑍 ↔ 𝑗 ∈ 𝑍)) | |
| 19 | 18 | anbi2d 641 | . . . . . . . . . 10 ⊢ (𝑘 = 𝑗 → ((𝜑 ∧ 𝑘 ∈ 𝑍) ↔ (𝜑 ∧ 𝑗 ∈ 𝑍))) |
| 20 | fveq2 6871 | . . . . . . . . . . 11 ⊢ (𝑘 = 𝑗 → (𝐹‘𝑘) = (𝐹‘𝑗)) | |
| 21 | fveq2 6871 | . . . . . . . . . . 11 ⊢ (𝑘 = 𝑗 → (𝐺‘𝑘) = (𝐺‘𝑗)) | |
| 22 | 20, 21 | eqeq12d 2781 | . . . . . . . . . 10 ⊢ (𝑘 = 𝑗 → ((𝐹‘𝑘) = (𝐺‘𝑘) ↔ (𝐹‘𝑗) = (𝐺‘𝑗))) |
| 23 | 19, 22 | imbi12d 347 | . . . . . . . . 9 ⊢ (𝑘 = 𝑗 → (((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) = (𝐺‘𝑘)) ↔ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹‘𝑗) = (𝐺‘𝑗)))) |
| 24 | climfveqf.e | . . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) = (𝐺‘𝑘)) | |
| 25 | 17, 23, 24 | chvarfv 2278 | . . . . . . . 8 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹‘𝑗) = (𝐺‘𝑗)) |
| 26 | 4, 5, 6, 7, 25 | climeldmeq 46238 | . . . . . . 7 ⊢ (𝜑 → (𝐹 ∈ dom ⇝ ↔ 𝐺 ∈ dom ⇝ )) |
| 27 | 26 | adantr 485 | . . . . . 6 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → (𝐹 ∈ dom ⇝ ↔ 𝐺 ∈ dom ⇝ )) |
| 28 | 3, 27 | mpbid 235 | . . . . 5 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐺 ∈ dom ⇝ ) |
| 29 | climdm 15593 | . . . . 5 ⊢ (𝐺 ∈ dom ⇝ ↔ 𝐺 ⇝ ( ⇝ ‘𝐺)) | |
| 30 | 28, 29 | sylib 221 | . . . 4 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐺 ⇝ ( ⇝ ‘𝐺)) |
| 31 | 6 | adantr 485 | . . . . 5 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐺 ∈ 𝑊) |
| 32 | 5 | adantr 485 | . . . . 5 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐹 ∈ 𝑉) |
| 33 | 7 | adantr 485 | . . . . 5 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝑀 ∈ ℤ) |
| 34 | 25 | eqcomd 2771 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐺‘𝑗) = (𝐹‘𝑗)) |
| 35 | 34 | adantlr 727 | . . . . 5 ⊢ (((𝜑 ∧ 𝐹 ∈ dom ⇝ ) ∧ 𝑗 ∈ 𝑍) → (𝐺‘𝑗) = (𝐹‘𝑗)) |
| 36 | 4, 31, 32, 33, 35 | climeq 15606 | . . . 4 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → (𝐺 ⇝ ( ⇝ ‘𝐺) ↔ 𝐹 ⇝ ( ⇝ ‘𝐺))) |
| 37 | 30, 36 | mpbid 235 | . . 3 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐹 ⇝ ( ⇝ ‘𝐺)) |
| 38 | climuni 15591 | . . 3 ⊢ ((𝐹 ⇝ ( ⇝ ‘𝐹) ∧ 𝐹 ⇝ ( ⇝ ‘𝐺)) → ( ⇝ ‘𝐹) = ( ⇝ ‘𝐺)) | |
| 39 | 2, 37, 38 | syl2anc 595 | . 2 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → ( ⇝ ‘𝐹) = ( ⇝ ‘𝐺)) |
| 40 | ndmfv 6903 | . . . 4 ⊢ (¬ 𝐹 ∈ dom ⇝ → ( ⇝ ‘𝐹) = ∅) | |
| 41 | 40 | adantl 486 | . . 3 ⊢ ((𝜑 ∧ ¬ 𝐹 ∈ dom ⇝ ) → ( ⇝ ‘𝐹) = ∅) |
| 42 | simpr 489 | . . . . 5 ⊢ ((𝜑 ∧ ¬ 𝐹 ∈ dom ⇝ ) → ¬ 𝐹 ∈ dom ⇝ ) | |
| 43 | 26 | adantr 485 | . . . . 5 ⊢ ((𝜑 ∧ ¬ 𝐹 ∈ dom ⇝ ) → (𝐹 ∈ dom ⇝ ↔ 𝐺 ∈ dom ⇝ )) |
| 44 | 42, 43 | mtbid 327 | . . . 4 ⊢ ((𝜑 ∧ ¬ 𝐹 ∈ dom ⇝ ) → ¬ 𝐺 ∈ dom ⇝ ) |
| 45 | ndmfv 6903 | . . . 4 ⊢ (¬ 𝐺 ∈ dom ⇝ → ( ⇝ ‘𝐺) = ∅) | |
| 46 | 44, 45 | syl 18 | . . 3 ⊢ ((𝜑 ∧ ¬ 𝐹 ∈ dom ⇝ ) → ( ⇝ ‘𝐺) = ∅) |
| 47 | 41, 46 | eqtr4d 2803 | . 2 ⊢ ((𝜑 ∧ ¬ 𝐹 ∈ dom ⇝ ) → ( ⇝ ‘𝐹) = ( ⇝ ‘𝐺)) |
| 48 | 39, 47 | pm2.61dan 824 | 1 ⊢ (𝜑 → ( ⇝ ‘𝐹) = ( ⇝ ‘𝐺)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 400 = wceq 1563 Ⅎwnf 1806 ∈ wcel 2145 Ⅎwnfc 2912 ∅c0 4288 class class class wbr 5104 dom cdm 5651 ‘cfv 6525 ℤcz 12579 ℤ≥cuz 12850 ⇝ cli 15523 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-sep 5250 ax-nul 5260 ax-pow 5326 ax-pr 5394 ax-un 7722 ax-cnex 11144 ax-resscn 11145 ax-1cn 11146 ax-icn 11147 ax-addcl 11148 ax-addrcl 11149 ax-mulcl 11150 ax-mulrcl 11151 ax-mulcom 11152 ax-addass 11153 ax-mulass 11154 ax-distr 11155 ax-i2m1 11156 ax-1ne0 11157 ax-1rid 11158 ax-rnegex 11159 ax-rrecex 11160 ax-cnre 11161 ax-pre-lttri 11162 ax-pre-lttrn 11163 ax-pre-ltadd 11164 ax-pre-mulgt0 11165 ax-pre-sup 11166 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3370 df-reu 3371 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-pss 3927 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4868 df-iun 4953 df-br 5105 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6291 df-ord 6352 df-on 6353 df-lim 6354 df-suc 6355 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-f1 6530 df-fo 6531 df-f1o 6532 df-fv 6533 df-riota 7357 df-ov 7403 df-oprab 7404 df-mpo 7405 df-om 7851 df-2nd 7975 df-frecs 8266 df-wrecs 8297 df-recs 8346 df-rdg 8385 df-er 8682 df-en 8932 df-dom 8933 df-sdom 8934 df-sup 9390 df-pnf 11233 df-mnf 11234 df-xr 11235 df-ltxr 11236 df-le 11237 df-sub 11431 df-neg 11432 df-div 11860 df-nn 12222 df-2 12291 df-3 12292 df-n0 12493 df-z 12580 df-uz 12851 df-rp 13005 df-seq 14026 df-exp 14086 df-cj 15138 df-re 15139 df-im 15140 df-sqrt 15274 df-abs 15275 df-clim 15527 |
| This theorem is referenced by: climfveqmpt2 46266 |
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