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| Mirrors > Home > MPE Home > Th. List > Mathboxes > fsummulc1f | Structured version Visualization version GIF version | ||
| Description: Closure of a finite sum of complex numbers 𝐴(𝑘). A version of fsummulc1 15824 using bound-variable hypotheses instead of distinct variable conditions. (Contributed by Glauco Siliprandi, 5-Apr-2020.) |
| Ref | Expression |
|---|---|
| fsummulc1f.ph | ⊢ Ⅎ𝑘𝜑 |
| fsummulclf.a | ⊢ (𝜑 → 𝐴 ∈ Fin) |
| fsummulclf.c | ⊢ (𝜑 → 𝐶 ∈ ℂ) |
| fsummulclf.b | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) |
| Ref | Expression |
|---|---|
| fsummulc1f | ⊢ (𝜑 → (Σ𝑘 ∈ 𝐴 𝐵 · 𝐶) = Σ𝑘 ∈ 𝐴 (𝐵 · 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | csbeq1a 3869 | . . . . 5 ⊢ (𝑘 = 𝑗 → 𝐵 = ⦋𝑗 / 𝑘⦌𝐵) | |
| 2 | nfcv 2927 | . . . . 5 ⊢ Ⅎ𝑗𝐵 | |
| 3 | nfcsb1v 3879 | . . . . 5 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐵 | |
| 4 | 1, 2, 3 | cbvsum 15734 | . . . 4 ⊢ Σ𝑘 ∈ 𝐴 𝐵 = Σ𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐵 |
| 5 | 4 | oveq1i 7410 | . . 3 ⊢ (Σ𝑘 ∈ 𝐴 𝐵 · 𝐶) = (Σ𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐵 · 𝐶) |
| 6 | 5 | a1i 11 | . 2 ⊢ (𝜑 → (Σ𝑘 ∈ 𝐴 𝐵 · 𝐶) = (Σ𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐵 · 𝐶)) |
| 7 | fsummulclf.a | . . 3 ⊢ (𝜑 → 𝐴 ∈ Fin) | |
| 8 | fsummulclf.c | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℂ) | |
| 9 | fsummulc1f.ph | . . . . . 6 ⊢ Ⅎ𝑘𝜑 | |
| 10 | nfv 1937 | . . . . . 6 ⊢ Ⅎ𝑘 𝑗 ∈ 𝐴 | |
| 11 | 9, 10 | nfan 1922 | . . . . 5 ⊢ Ⅎ𝑘(𝜑 ∧ 𝑗 ∈ 𝐴) |
| 12 | 3 | nfel1 2943 | . . . . 5 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐵 ∈ ℂ |
| 13 | 11, 12 | nfim 1919 | . . . 4 ⊢ Ⅎ𝑘((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐵 ∈ ℂ) |
| 14 | eleq1w 2848 | . . . . . 6 ⊢ (𝑘 = 𝑗 → (𝑘 ∈ 𝐴 ↔ 𝑗 ∈ 𝐴)) | |
| 15 | 14 | anbi2d 641 | . . . . 5 ⊢ (𝑘 = 𝑗 → ((𝜑 ∧ 𝑘 ∈ 𝐴) ↔ (𝜑 ∧ 𝑗 ∈ 𝐴))) |
| 16 | 1 | eleq1d 2850 | . . . . 5 ⊢ (𝑘 = 𝑗 → (𝐵 ∈ ℂ ↔ ⦋𝑗 / 𝑘⦌𝐵 ∈ ℂ)) |
| 17 | 15, 16 | imbi12d 347 | . . . 4 ⊢ (𝑘 = 𝑗 → (((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) ↔ ((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐵 ∈ ℂ))) |
| 18 | fsummulclf.b | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) | |
| 19 | 13, 17, 18 | chvarfv 2278 | . . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐵 ∈ ℂ) |
| 20 | 7, 8, 19 | fsummulc1 15824 | . 2 ⊢ (𝜑 → (Σ𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐵 · 𝐶) = Σ𝑗 ∈ 𝐴 (⦋𝑗 / 𝑘⦌𝐵 · 𝐶)) |
| 21 | eqcom 2772 | . . . . . . . 8 ⊢ (𝑘 = 𝑗 ↔ 𝑗 = 𝑘) | |
| 22 | 21 | imbi1i 352 | . . . . . . 7 ⊢ ((𝑘 = 𝑗 → 𝐵 = ⦋𝑗 / 𝑘⦌𝐵) ↔ (𝑗 = 𝑘 → 𝐵 = ⦋𝑗 / 𝑘⦌𝐵)) |
| 23 | eqcom 2772 | . . . . . . . 8 ⊢ (𝐵 = ⦋𝑗 / 𝑘⦌𝐵 ↔ ⦋𝑗 / 𝑘⦌𝐵 = 𝐵) | |
| 24 | 23 | imbi2i 339 | . . . . . . 7 ⊢ ((𝑗 = 𝑘 → 𝐵 = ⦋𝑗 / 𝑘⦌𝐵) ↔ (𝑗 = 𝑘 → ⦋𝑗 / 𝑘⦌𝐵 = 𝐵)) |
| 25 | 22, 24 | bitri 278 | . . . . . 6 ⊢ ((𝑘 = 𝑗 → 𝐵 = ⦋𝑗 / 𝑘⦌𝐵) ↔ (𝑗 = 𝑘 → ⦋𝑗 / 𝑘⦌𝐵 = 𝐵)) |
| 26 | 1, 25 | mpbi 233 | . . . . 5 ⊢ (𝑗 = 𝑘 → ⦋𝑗 / 𝑘⦌𝐵 = 𝐵) |
| 27 | 26 | oveq1d 7415 | . . . 4 ⊢ (𝑗 = 𝑘 → (⦋𝑗 / 𝑘⦌𝐵 · 𝐶) = (𝐵 · 𝐶)) |
| 28 | nfcv 2927 | . . . . 5 ⊢ Ⅎ𝑘 · | |
| 29 | nfcv 2927 | . . . . 5 ⊢ Ⅎ𝑘𝐶 | |
| 30 | 3, 28, 29 | nfov 7430 | . . . 4 ⊢ Ⅎ𝑘(⦋𝑗 / 𝑘⦌𝐵 · 𝐶) |
| 31 | nfcv 2927 | . . . 4 ⊢ Ⅎ𝑗(𝐵 · 𝐶) | |
| 32 | 27, 30, 31 | cbvsum 15734 | . . 3 ⊢ Σ𝑗 ∈ 𝐴 (⦋𝑗 / 𝑘⦌𝐵 · 𝐶) = Σ𝑘 ∈ 𝐴 (𝐵 · 𝐶) |
| 33 | 32 | a1i 11 | . 2 ⊢ (𝜑 → Σ𝑗 ∈ 𝐴 (⦋𝑗 / 𝑘⦌𝐵 · 𝐶) = Σ𝑘 ∈ 𝐴 (𝐵 · 𝐶)) |
| 34 | 6, 20, 33 | 3eqtrd 2804 | 1 ⊢ (𝜑 → (Σ𝑘 ∈ 𝐴 𝐵 · 𝐶) = Σ𝑘 ∈ 𝐴 (𝐵 · 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 = wceq 1563 Ⅎwnf 1806 ∈ wcel 2145 ⦋csb 3855 (class class class)co 7400 Fincfn 8931 ℂcc 11086 · cmul 11093 Σcsu 15725 |
| 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-rep 5231 ax-sep 5250 ax-nul 5260 ax-pow 5326 ax-pr 5394 ax-un 7722 ax-inf2 9598 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-int 4908 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-se 5605 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-isom 6534 df-riota 7357 df-ov 7403 df-oprab 7404 df-mpo 7405 df-om 7851 df-1st 7974 df-2nd 7975 df-frecs 8266 df-wrecs 8297 df-recs 8346 df-rdg 8385 df-1o 8441 df-er 8682 df-en 8932 df-dom 8933 df-sdom 8934 df-fin 8935 df-sup 9390 df-oi 9460 df-card 9913 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-fz 13524 df-fzo 13671 df-seq 14026 df-exp 14086 df-hash 14355 df-cj 15138 df-re 15139 df-im 15140 df-sqrt 15274 df-abs 15275 df-clim 15527 df-sum 15726 |
| This theorem is referenced by: dvmptfprodlem 46517 |
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