| 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 15605 | . . . 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 2931 | . . . . . . . . . . . 12 ⊢ Ⅎ𝑘𝑗 | |
| 10 | 9 | nfel1 2947 | . . . . . . . . . . 11 ⊢ Ⅎ𝑘 𝑗 ∈ 𝑍 |
| 11 | 8, 10 | nfan 1926 | . . . . . . . . . 10 ⊢ Ⅎ𝑘(𝜑 ∧ 𝑗 ∈ 𝑍) |
| 12 | climfveqf.n | . . . . . . . . . . . 12 ⊢ Ⅎ𝑘𝐹 | |
| 13 | 12, 9 | nffv 6892 | . . . . . . . . . . 11 ⊢ Ⅎ𝑘(𝐹‘𝑗) |
| 14 | climfveqf.o | . . . . . . . . . . . 12 ⊢ Ⅎ𝑘𝐺 | |
| 15 | 14, 9 | nffv 6892 | . . . . . . . . . . 11 ⊢ Ⅎ𝑘(𝐺‘𝑗) |
| 16 | 13, 15 | nfeq 2944 | . . . . . . . . . 10 ⊢ Ⅎ𝑘(𝐹‘𝑗) = (𝐺‘𝑗) |
| 17 | 11, 16 | nfim 1923 | . . . . . . . . 9 ⊢ Ⅎ𝑘((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹‘𝑗) = (𝐺‘𝑗)) |
| 18 | eleq1w 2852 | . . . . . . . . . . 11 ⊢ (𝑘 = 𝑗 → (𝑘 ∈ 𝑍 ↔ 𝑗 ∈ 𝑍)) | |
| 19 | 18 | anbi2d 641 | . . . . . . . . . 10 ⊢ (𝑘 = 𝑗 → ((𝜑 ∧ 𝑘 ∈ 𝑍) ↔ (𝜑 ∧ 𝑗 ∈ 𝑍))) |
| 20 | fveq2 6882 | . . . . . . . . . . 11 ⊢ (𝑘 = 𝑗 → (𝐹‘𝑘) = (𝐹‘𝑗)) | |
| 21 | fveq2 6882 | . . . . . . . . . . 11 ⊢ (𝑘 = 𝑗 → (𝐺‘𝑘) = (𝐺‘𝑗)) | |
| 22 | 20, 21 | eqeq12d 2785 | . . . . . . . . . 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 2282 | . . . . . . . 8 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹‘𝑗) = (𝐺‘𝑗)) |
| 26 | 4, 5, 6, 7, 25 | climeldmeq 46306 | . . . . . . 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 15605 | . . . . 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 2775 | . . . . . 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 15618 | . . . 4 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → (𝐺 ⇝ ( ⇝ ‘𝐺) ↔ 𝐹 ⇝ ( ⇝ ‘𝐺))) |
| 37 | 30, 36 | mpbid 235 | . . 3 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → 𝐹 ⇝ ( ⇝ ‘𝐺)) |
| 38 | climuni 15603 | . . 3 ⊢ ((𝐹 ⇝ ( ⇝ ‘𝐹) ∧ 𝐹 ⇝ ( ⇝ ‘𝐺)) → ( ⇝ ‘𝐹) = ( ⇝ ‘𝐺)) | |
| 39 | 2, 37, 38 | syl2anc 595 | . 2 ⊢ ((𝜑 ∧ 𝐹 ∈ dom ⇝ ) → ( ⇝ ‘𝐹) = ( ⇝ ‘𝐺)) |
| 40 | ndmfv 6914 | . . . 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 6914 | . . . 4 ⊢ (¬ 𝐺 ∈ dom ⇝ → ( ⇝ ‘𝐺) = ∅) | |
| 46 | 44, 45 | syl 18 | . . 3 ⊢ ((𝜑 ∧ ¬ 𝐹 ∈ dom ⇝ ) → ( ⇝ ‘𝐺) = ∅) |
| 47 | 41, 46 | eqtr4d 2807 | . 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 1567 Ⅎwnf 1810 ∈ wcel 2149 Ⅎwnfc 2916 ∅c0 4292 class class class wbr 5111 dom cdm 5662 ‘cfv 6537 ℤcz 12591 ℤ≥cuz 12862 ⇝ cli 15535 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5259 ax-nul 5271 ax-pow 5337 ax-pr 5405 ax-un 7733 ax-cnex 11156 ax-resscn 11157 ax-1cn 11158 ax-icn 11159 ax-addcl 11160 ax-addrcl 11161 ax-mulcl 11162 ax-mulrcl 11163 ax-mulcom 11164 ax-addass 11165 ax-mulass 11166 ax-distr 11167 ax-i2m1 11168 ax-1ne0 11169 ax-1rid 11170 ax-rnegex 11171 ax-rrecex 11172 ax-cnre 11173 ax-pre-lttri 11174 ax-pre-lttrn 11175 ax-pre-ltadd 11176 ax-pre-mulgt0 11177 ax-pre-sup 11178 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-rmo 3375 df-reu 3376 df-rab 3423 df-v 3463 df-sbc 3752 df-csb 3860 df-dif 3914 df-un 3916 df-in 3918 df-ss 3928 df-pss 3931 df-nul 4293 df-if 4491 df-pw 4567 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5557 df-eprel 5562 df-po 5570 df-so 5571 df-fr 5615 df-we 5617 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7368 df-ov 7414 df-oprab 7415 df-mpo 7416 df-om 7863 df-2nd 7987 df-frecs 8278 df-wrecs 8309 df-recs 8358 df-rdg 8397 df-er 8694 df-en 8944 df-dom 8945 df-sdom 8946 df-sup 9402 df-pnf 11245 df-mnf 11246 df-xr 11247 df-ltxr 11248 df-le 11249 df-sub 11443 df-neg 11444 df-div 11872 df-nn 12234 df-2 12303 df-3 12304 df-n0 12505 df-z 12592 df-uz 12863 df-rp 13017 df-seq 14038 df-exp 14098 df-cj 15150 df-re 15151 df-im 15152 df-sqrt 15286 df-abs 15287 df-clim 15539 |
| This theorem is referenced by: climfveqmpt2 46334 |
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