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| Mirrors > Home > MPE Home > Th. List > Mathboxes > gsumzrsum | Structured version Visualization version GIF version | ||
| Description: Relate a group sum on ℤring to a finite sum on the complex numbers. See also gsumfsum 21742. (Contributed by Thierry Arnoux, 5-Oct-2025.) |
| Ref | Expression |
|---|---|
| gsumzrsum.1 | ⊢ (𝜑 → 𝐴 ∈ Fin) |
| gsumzrsum.2 | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℤ) |
| Ref | Expression |
|---|---|
| gsumzrsum | ⊢ (𝜑 → (ℤring Σg (𝑘 ∈ 𝐴 ↦ 𝐵)) = Σ𝑘 ∈ 𝐴 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cnfldbas 21684 | . . 3 ⊢ ℂ = (Base‘ℂfld) | |
| 2 | cnfldadd 21686 | . . 3 ⊢ + = (+g‘ℂfld) | |
| 3 | df-zring 21755 | . . 3 ⊢ ℤring = (ℂfld ↾s ℤ) | |
| 4 | cnfldex 21683 | . . . 4 ⊢ ℂfld ∈ V | |
| 5 | 4 | a1i 11 | . . 3 ⊢ (𝜑 → ℂfld ∈ V) |
| 6 | gsumzrsum.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ Fin) | |
| 7 | zsscn 12703 | . . . 4 ⊢ ℤ ⊆ ℂ | |
| 8 | 7 | a1i 11 | . . 3 ⊢ (𝜑 → ℤ ⊆ ℂ) |
| 9 | gsumzrsum.2 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℤ) | |
| 10 | 9 | fmpttd 7115 | . . 3 ⊢ (𝜑 → (𝑘 ∈ 𝐴 ↦ 𝐵):𝐴⟶ℤ) |
| 11 | 0zd 12707 | . . 3 ⊢ (𝜑 → 0 ∈ ℤ) | |
| 12 | addlid 11495 | . . . . 5 ⊢ (𝑘 ∈ ℂ → (0 + 𝑘) = 𝑘) | |
| 13 | addrid 11492 | . . . . 5 ⊢ (𝑘 ∈ ℂ → (𝑘 + 0) = 𝑘) | |
| 14 | 12, 13 | jca 521 | . . . 4 ⊢ (𝑘 ∈ ℂ → ((0 + 𝑘) = 𝑘 ∧ (𝑘 + 0) = 𝑘)) |
| 15 | 14 | adantl 487 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ ℂ) → ((0 + 𝑘) = 𝑘 ∧ (𝑘 + 0) = 𝑘)) |
| 16 | 1, 2, 3, 5, 6, 8, 10, 11, 15 | gsumress 18873 | . 2 ⊢ (𝜑 → (ℂfld Σg (𝑘 ∈ 𝐴 ↦ 𝐵)) = (ℤring Σg (𝑘 ∈ 𝐴 ↦ 𝐵))) |
| 17 | 9 | zcnd 12806 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) |
| 18 | 6, 17 | gsumfsum 21742 | . 2 ⊢ (𝜑 → (ℂfld Σg (𝑘 ∈ 𝐴 ↦ 𝐵)) = Σ𝑘 ∈ 𝐴 𝐵) |
| 19 | 16, 18 | eqtr3d 2797 | 1 ⊢ (𝜑 → (ℤring Σg (𝑘 ∈ 𝐴 ↦ 𝐵)) = Σ𝑘 ∈ 𝐴 𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1569 ∈ wcel 2144 Vcvv 3450 ⊆ wss 3895 ↦ cmpt 5185 (class class class)co 7420 Fincfn 8975 ℂcc 11200 0cc0 11202 + caddc 11205 ℤcz 12695 Σcsu 15855 Σg cgsu 17613 ℂfldccnfld 21680 ℤringczring 21754 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7751 ax-inf2 9644 ax-cnex 11258 ax-resscn 11259 ax-1cn 11260 ax-icn 11261 ax-addcl 11262 ax-addrcl 11263 ax-mulcl 11264 ax-mulrcl 11265 ax-mulcom 11266 ax-addass 11267 ax-mulass 11268 ax-distr 11269 ax-i2m1 11270 ax-1ne0 11271 ax-1rid 11272 ax-rnegex 11273 ax-rrecex 11274 ax-cnre 11275 ax-pre-lttri 11276 ax-pre-lttrn 11277 ax-pre-ltadd 11278 ax-pre-mulgt0 11279 ax-pre-sup 11280 ax-addf 11281 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 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-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-tp 4588 df-op 4590 df-uni 4867 df-int 4907 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-se 5604 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-isom 6547 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-1st 8001 df-2nd 8002 df-supp 8179 df-frecs 8301 df-wrecs 8332 df-recs 8381 df-rdg 8420 df-1o 8478 df-er 8719 df-en 8976 df-dom 8977 df-sdom 8978 df-fin 8979 df-sup 9436 df-oi 9506 df-card 10022 df-pnf 11347 df-mnf 11348 df-xr 11349 df-ltxr 11350 df-le 11351 df-sub 11545 df-neg 11546 df-div 11976 df-nn 12338 df-2 12407 df-3 12408 df-4 12409 df-5 12410 df-6 12411 df-7 12412 df-8 12413 df-9 12414 df-n0 12609 df-z 12696 df-dec 12817 df-uz 12968 df-rp 13123 df-fz 13642 df-fzo 13791 df-seq 14147 df-exp 14207 df-hash 14477 df-cj 15268 df-re 15269 df-im 15270 df-sqrt 15404 df-abs 15405 df-clim 15657 df-sum 15856 df-struct 17327 df-sets 17344 df-slot 17362 df-ndx 17374 df-base 17390 df-ress 17411 df-plusg 17443 df-mulr 17444 df-starv 17445 df-tset 17449 df-ple 17450 df-ds 17452 df-unif 17453 df-0g 17614 df-gsum 17615 df-mgm 18818 df-sgrp 18910 df-mnd 18926 df-grp 19149 df-minusg 19150 df-cntz 19533 df-cmn 19998 df-abl 19999 df-mgp 20363 df-ur 20410 df-ring 20463 df-cring 20464 df-cnfld 21681 df-zring 21755 |
| This theorem is used by: gsummulgc2 33671 |
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