| Mathbox for Glauco Siliprandi |
< Previous
Next >
Nearby theorems |
||
| 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 15583 | . . . 4 ⊢ (𝐹 ∈ dom ⇝ ↔ 𝐹 ⇝ ( ⇝ ‘𝐹)) | |
| 2 | 1 | bilani 508 | . . 3 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐹 ⇝ ( ⇝ ‘𝐹)) |
| 3 | 2, 1 | sylibr 236 | . . . . . 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 2926 | . . . . . . . . . . . 12 ⊢ Ⅎ𝑘𝑗 | |
| 10 | 9 | nfel1 2942 | . . . . . . . . . . 11 ⊢ Ⅎ𝑘 𝑗 ∈ 𝑍 |
| 11 | 8, 10 | nfan 1921 | . . . . . . . . . 10 ⊢ Ⅎ𝑘(𝜑 ∧ 𝑗 ∈ 𝑍) |
| 12 | climfveqf.n | . . . . . . . . . . . 12 ⊢ Ⅎ𝑘𝐹 | |
| 13 | 12, 9 | nffv 6879 | . . . . . . . . . . 11 ⊢ Ⅎ𝑘(𝐹‘𝑗) |
| 14 | climfveqf.o | . . . . . . . . . . . 12 ⊢ Ⅎ𝑘𝐺 | |
| 15 | 14, 9 | nffv 6879 | . . . . . . . . . . 11 ⊢ Ⅎ𝑘(𝐺‘𝑗) |
| 16 | 13, 15 | nfeq 2939 | . . . . . . . . . 10 ⊢ Ⅎ𝑘(𝐹‘𝑗) = (𝐺‘𝑗) |
| 17 | 11, 16 | nfim 1918 | . . . . . . . . 9 ⊢ Ⅎ𝑘((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹‘𝑗) = (𝐺‘𝑗)) |
| 18 | eleq1w 2847 | . . . . . . . . . . 11 ⊢ (𝑘 = 𝑗 → (𝑘 ∈ 𝑍 ↔ 𝑗 ∈ 𝑍)) | |
| 19 | 18 | anbi2d 639 | . . . . . . . . . 10 ⊢ (𝑘 = 𝑗 → ((𝜑 ∧ 𝑘 ∈ 𝑍) ↔ (𝜑 ∧ 𝑗 ∈ 𝑍))) |
| 20 | fveq2 6869 | . . . . . . . . . . 11 ⊢ (𝑘 = 𝑗 → (𝐹‘𝑘) = (𝐹‘𝑗)) | |
| 21 | fveq2 6869 | . . . . . . . . . . 11 ⊢ (𝑘 = 𝑗 → (𝐺‘𝑘) = (𝐺‘𝑗)) | |
| 22 | 20, 21 | eqeq12d 2780 | . . . . . . . . . 10 ⊢ (𝑘 = 𝑗 → ((𝐹‘𝑘) = (𝐺‘𝑘) ↔ (𝐹‘𝑗) = (𝐺‘𝑗))) |
| 23 | 19, 22 | imbi12d 346 | . . . . . . . . 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 2277 | . . . . . . . 8 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹‘𝑗) = (𝐺‘𝑗)) |
| 26 | 4, 5, 6, 7, 25 | climeldmeq 46244 | . . . . . . 7 ⊢ (𝜑 → (𝐹 ∈ dom ⇝ ↔ 𝐺 ∈ dom ⇝ )) |
| 27 | 26 | adantr 484 | . . . . . 6 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → (𝐹 ∈ dom ⇝ ↔ 𝐺 ∈ dom ⇝ )) |
| 28 | 3, 27 | mpbid 234 | . . . . 5 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐺 ∈ dom ⇝ ) |
| 29 | climdm 15583 | . . . . 5 ⊢ (𝐺 ∈ dom ⇝ ↔ 𝐺 ⇝ ( ⇝ ‘𝐺)) | |
| 30 | 28, 29 | sylib 220 | . . . 4 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐺 ⇝ ( ⇝ ‘𝐺)) |
| 31 | 6 | adantr 484 | . . . . 5 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐺 ∈ 𝑊) |
| 32 | 5 | adantr 484 | . . . . 5 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐹 ∈ 𝑉) |
| 33 | 7 | adantr 484 | . . . . 5 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝑀 ∈ ℤ) |
| 34 | 25 | eqcomd 2770 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐺‘𝑗) = (𝐹‘𝑗)) |
| 35 | 34 | adantlr 725 | . . . . 5 ⊢ (((𝜑 ∧ 𝐹 ∈ dom ⇝ ) ∧ 𝑗 ∈ 𝑍) → (𝐺‘𝑗) = (𝐹‘𝑗)) |
| 36 | 4, 31, 32, 33, 35 | climeq 15596 | . . . 4 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → (𝐺 ⇝ ( ⇝ ‘𝐺) ↔ 𝐹 ⇝ ( ⇝ ‘𝐺))) |
| 37 | 30, 36 | mpbid 234 | . . 3 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐹 ⇝ ( ⇝ ‘𝐺)) |
| 38 | climuni 15581 | . . 3 ⊢ ((𝐹 ⇝ ( ⇝ ‘𝐹) ∧ 𝐹 ⇝ ( ⇝ ‘𝐺)) → ( ⇝ ‘𝐹) = ( ⇝ ‘𝐺)) | |
| 39 | 2, 37, 38 | syl2anc 593 | . 2 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → ( ⇝ ‘𝐹) = ( ⇝ ‘𝐺)) |
| 40 | ndmfv 6901 | . . . 4 ⊢ (¬ 𝐹 ∈ dom ⇝ → ( ⇝ ‘𝐹) = ∅) | |
| 41 | 40 | adantl 485 | . . 3 ⊢ ((𝜑 ∧ ¬ 𝐹 ∈ dom ⇝ ) → ( ⇝ ‘𝐹) = ∅) |
| 42 | simpr 488 | . . . . 5 ⊢ ((𝜑 ∧ ¬ 𝐹 ∈ dom ⇝ ) → ¬ 𝐹 ∈ dom ⇝ ) | |
| 43 | 26 | adantr 484 | . . . . 5 ⊢ ((𝜑 ∧ ¬ 𝐹 ∈ dom ⇝ ) → (𝐹 ∈ dom ⇝ ↔ 𝐺 ∈ dom ⇝ )) |
| 44 | 42, 43 | mtbid 326 | . . . 4 ⊢ ((𝜑 ∧ ¬ 𝐹 ∈ dom ⇝ ) → ¬ 𝐺 ∈ dom ⇝ ) |
| 45 | ndmfv 6901 | . . . 4 ⊢ (¬ 𝐺 ∈ dom ⇝ → ( ⇝ ‘𝐺) = ∅) | |
| 46 | 44, 45 | syl 17 | . . 3 ⊢ ((𝜑 ∧ ¬ 𝐹 ∈ dom ⇝ ) → ( ⇝ ‘𝐺) = ∅) |
| 47 | 41, 46 | eqtr4d 2802 | . 2 ⊢ ((𝜑 ∧ ¬ 𝐹 ∈ dom ⇝ ) → ( ⇝ ‘𝐹) = ( ⇝ ‘𝐺)) |
| 48 | 39, 47 | pm2.61dan 822 | 1 ⊢ (𝜑 → ( ⇝ ‘𝐹) = ( ⇝ ‘𝐺)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 208 ∧ wa 399 = wceq 1562 Ⅎwnf 1805 ∈ wcel 2144 Ⅎwnfc 2911 ∅c0 4287 class class class wbr 5102 dom cdm 5649 ‘cfv 6523 ℤcz 12570 ℤ≥cuz 12841 ⇝ cli 15513 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1817 ax-4 1831 ax-5 1932 ax-6 1989 ax-7 2030 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2214 ax-ext 2736 ax-sep 5248 ax-nul 5258 ax-pow 5324 ax-pr 5392 ax-un 7720 ax-cnex 11131 ax-resscn 11132 ax-1cn 11133 ax-icn 11134 ax-addcl 11135 ax-addrcl 11136 ax-mulcl 11137 ax-mulrcl 11138 ax-mulcom 11139 ax-addass 11140 ax-mulass 11141 ax-distr 11142 ax-i2m1 11143 ax-1ne0 11144 ax-1rid 11145 ax-rnegex 11146 ax-rrecex 11147 ax-cnre 11148 ax-pre-lttri 11149 ax-pre-lttrn 11150 ax-pre-ltadd 11151 ax-pre-mulgt0 11152 ax-pre-sup 11153 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1100 df-3an 1101 df-tru 1565 df-fal 1575 df-ex 1802 df-nf 1806 df-sb 2093 df-mo 2568 df-eu 2598 df-clab 2743 df-cleq 2756 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3064 df-ral 3079 df-rex 3089 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3458 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4288 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5103 df-opab 5165 df-mpt 5184 df-tr 5210 df-id 5544 df-eprel 5549 df-po 5557 df-so 5558 df-fr 5602 df-we 5604 df-xp 5655 df-rel 5656 df-cnv 5657 df-co 5658 df-dm 5659 df-rn 5660 df-res 5661 df-ima 5662 df-pred 6290 df-ord 6351 df-on 6352 df-lim 6353 df-suc 6354 df-iota 6479 df-fun 6525 df-fn 6526 df-f 6527 df-f1 6528 df-fo 6529 df-f1o 6530 df-fv 6531 df-riota 7355 df-ov 7401 df-oprab 7402 df-mpo 7403 df-om 7849 df-2nd 7973 df-frecs 8264 df-wrecs 8295 df-recs 8344 df-rdg 8383 df-er 8680 df-en 8930 df-dom 8931 df-sdom 8932 df-sup 9390 df-pnf 11220 df-mnf 11221 df-xr 11222 df-ltxr 11223 df-le 11224 df-sub 11418 df-neg 11419 df-div 11847 df-nn 12213 df-2 12282 df-3 12283 df-n0 12484 df-z 12571 df-uz 12842 df-rp 12996 df-seq 14017 df-exp 14077 df-cj 15128 df-re 15129 df-im 15130 df-sqrt 15264 df-abs 15265 df-clim 15517 |
| This theorem is referenced by: climfveqmpt2 46272 |
| Copyright terms: Public domain | W3C validator |