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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 21455. (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 21397 | . . 3 ⊢ ℂ = (Base‘ℂfld) | |
| 2 | cnfldadd 21399 | . . 3 ⊢ + = (+g‘ℂfld) | |
| 3 | df-zring 21468 | . . 3 ⊢ ℤring = (ℂfld ↾s ℤ) | |
| 4 | cnfldex 21396 | . . . 4 ⊢ ℂfld ∈ V | |
| 5 | 4 | a1i 11 | . . 3 ⊢ (𝜑 → ℂfld ∈ V) |
| 6 | gsumzrsum.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ Fin) | |
| 7 | zsscn 12562 | . . . 4 ⊢ ℤ ⊆ ℂ | |
| 8 | 7 | a1i 11 | . . 3 ⊢ (𝜑 → ℤ ⊆ ℂ) |
| 9 | gsumzrsum.2 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℤ) | |
| 10 | 9 | fmpttd 7081 | . . 3 ⊢ (𝜑 → (𝑘 ∈ 𝐴 ↦ 𝐵):𝐴⟶ℤ) |
| 11 | 0zd 12566 | . . 3 ⊢ (𝜑 → 0 ∈ ℤ) | |
| 12 | addlid 11352 | . . . . 5 ⊢ (𝑘 ∈ ℂ → (0 + 𝑘) = 𝑘) | |
| 13 | addrid 11349 | . . . . 5 ⊢ (𝑘 ∈ ℂ → (𝑘 + 0) = 𝑘) | |
| 14 | 12, 13 | jca 518 | . . . 4 ⊢ (𝑘 ∈ ℂ → ((0 + 𝑘) = 𝑘 ∧ (𝑘 + 0) = 𝑘)) |
| 15 | 14 | adantl 484 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ ℂ) → ((0 + 𝑘) = 𝑘 ∧ (𝑘 + 0) = 𝑘)) |
| 16 | 1, 2, 3, 5, 6, 8, 10, 11, 15 | gsumress 18688 | . 2 ⊢ (𝜑 → (ℂfld Σg (𝑘 ∈ 𝐴 ↦ 𝐵)) = (ℤring Σg (𝑘 ∈ 𝐴 ↦ 𝐵))) |
| 17 | 9 | zcnd 12664 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) |
| 18 | 6, 17 | gsumfsum 21455 | . 2 ⊢ (𝜑 → (ℂfld Σg (𝑘 ∈ 𝐴 ↦ 𝐵)) = Σ𝑘 ∈ 𝐴 𝐵) |
| 19 | 16, 18 | eqtr3d 2789 | 1 ⊢ (𝜑 → (ℤring Σg (𝑘 ∈ 𝐴 ↦ 𝐵)) = Σ𝑘 ∈ 𝐴 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 398 = wceq 1550 ∈ wcel 2132 Vcvv 3444 ⊆ wss 3895 ↦ cmpt 5171 (class class class)co 7381 Fincfn 8912 ℂcc 11057 0cc0 11059 + caddc 11062 ℤcz 12554 Σcsu 15685 Σg cgsu 17441 ℂfldccnfld 21393 ℤringczring 21467 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1805 ax-4 1819 ax-5 1920 ax-6 1977 ax-7 2018 ax-8 2134 ax-9 2142 ax-10 2165 ax-11 2181 ax-12 2202 ax-ext 2724 ax-rep 5217 ax-sep 5236 ax-nul 5246 ax-pow 5312 ax-pr 5380 ax-un 7703 ax-inf2 9582 ax-cnex 11115 ax-resscn 11116 ax-1cn 11117 ax-icn 11118 ax-addcl 11119 ax-addrcl 11120 ax-mulcl 11121 ax-mulrcl 11122 ax-mulcom 11123 ax-addass 11124 ax-mulass 11125 ax-distr 11126 ax-i2m1 11127 ax-1ne0 11128 ax-1rid 11129 ax-rnegex 11130 ax-rrecex 11131 ax-cnre 11132 ax-pre-lttri 11133 ax-pre-lttrn 11134 ax-pre-ltadd 11135 ax-pre-mulgt0 11136 ax-pre-sup 11137 ax-addf 11138 |
| This theorem depends on definitions: df-bi 209 df-an 399 df-or 857 df-3or 1096 df-3an 1097 df-tru 1553 df-fal 1563 df-ex 1790 df-nf 1794 df-sb 2081 df-mo 2556 df-eu 2586 df-clab 2731 df-cleq 2744 df-clel 2827 df-nfc 2901 df-ne 2948 df-nel 3052 df-ral 3067 df-rex 3077 df-rmo 3357 df-reu 3358 df-rab 3405 df-v 3446 df-sbc 3736 df-csb 3844 df-dif 3898 df-un 3900 df-in 3902 df-ss 3912 df-pss 3915 df-nul 4277 df-if 4471 df-pw 4547 df-sn 4573 df-pr 4575 df-tp 4577 df-op 4579 df-uni 4856 df-int 4896 df-iun 4941 df-br 5091 df-opab 5153 df-mpt 5172 df-tr 5198 df-id 5531 df-eprel 5536 df-po 5544 df-so 5545 df-fr 5589 df-se 5590 df-we 5591 df-xp 5642 df-rel 5643 df-cnv 5644 df-co 5645 df-dm 5646 df-rn 5647 df-res 5648 df-ima 5649 df-pred 6273 df-ord 6334 df-on 6335 df-lim 6336 df-suc 6337 df-iota 6462 df-fun 6508 df-fn 6509 df-f 6510 df-f1 6511 df-fo 6512 df-f1o 6513 df-fv 6514 df-isom 6515 df-riota 7338 df-ov 7384 df-oprab 7385 df-mpo 7386 df-om 7832 df-1st 7955 df-2nd 7956 df-supp 8125 df-frecs 8246 df-wrecs 8277 df-recs 8326 df-rdg 8365 df-1o 8421 df-er 8662 df-en 8913 df-dom 8914 df-sdom 8915 df-fin 8916 df-sup 9374 df-oi 9444 df-card 9883 df-pnf 11204 df-mnf 11205 df-xr 11206 df-ltxr 11207 df-le 11208 df-sub 11402 df-neg 11403 df-div 11831 df-nn 12197 df-2 12266 df-3 12267 df-4 12268 df-5 12269 df-6 12270 df-7 12271 df-8 12272 df-9 12273 df-n0 12468 df-z 12555 df-dec 12675 df-uz 12826 df-rp 12980 df-fz 13499 df-fzo 13646 df-seq 14001 df-exp 14061 df-hash 14330 df-cj 15098 df-re 15099 df-im 15100 df-sqrt 15234 df-abs 15235 df-clim 15487 df-sum 15686 df-struct 17155 df-sets 17172 df-slot 17190 df-ndx 17202 df-base 17218 df-ress 17239 df-plusg 17271 df-mulr 17272 df-starv 17273 df-tset 17277 df-ple 17278 df-ds 17280 df-unif 17281 df-0g 17442 df-gsum 17443 df-mgm 18646 df-sgrp 18725 df-mnd 18741 df-grp 18950 df-minusg 18951 df-cntz 19329 df-cmn 19794 df-abl 19795 df-mgp 20159 df-ur 20200 df-ring 20253 df-cring 20254 df-cnfld 21394 df-zring 21468 |
| This theorem is referenced by: gsummulgc2 33196 |
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