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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 21459. (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 21401 | . . 3 ⊢ ℂ = (Base‘ℂfld) | |
| 2 | cnfldadd 21403 | . . 3 ⊢ + = (+g‘ℂfld) | |
| 3 | df-zring 21472 | . . 3 ⊢ ℤring = (ℂfld ↾s ℤ) | |
| 4 | cnfldex 21400 | . . . 4 ⊢ ℂfld ∈ V | |
| 5 | 4 | a1i 11 | . . 3 ⊢ (𝜑 → ℂfld ∈ V) |
| 6 | gsumzrsum.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ Fin) | |
| 7 | zsscn 12566 | . . . 4 ⊢ ℤ ⊆ ℂ | |
| 8 | 7 | a1i 11 | . . 3 ⊢ (𝜑 → ℤ ⊆ ℂ) |
| 9 | gsumzrsum.2 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℤ) | |
| 10 | 9 | fmpttd 7085 | . . 3 ⊢ (𝜑 → (𝑘 ∈ 𝐴 ↦ 𝐵):𝐴⟶ℤ) |
| 11 | 0zd 12570 | . . 3 ⊢ (𝜑 → 0 ∈ ℤ) | |
| 12 | addlid 11356 | . . . . 5 ⊢ (𝑘 ∈ ℂ → (0 + 𝑘) = 𝑘) | |
| 13 | addrid 11353 | . . . . 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 18692 | . 2 ⊢ (𝜑 → (ℂfld Σg (𝑘 ∈ 𝐴 ↦ 𝐵)) = (ℤring Σg (𝑘 ∈ 𝐴 ↦ 𝐵))) |
| 17 | 9 | zcnd 12668 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) |
| 18 | 6, 17 | gsumfsum 21459 | . 2 ⊢ (𝜑 → (ℂfld Σg (𝑘 ∈ 𝐴 ↦ 𝐵)) = Σ𝑘 ∈ 𝐴 𝐵) |
| 19 | 16, 18 | eqtr3d 2793 | 1 ⊢ (𝜑 → (ℤring Σg (𝑘 ∈ 𝐴 ↦ 𝐵)) = Σ𝑘 ∈ 𝐴 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 398 = wceq 1554 ∈ wcel 2136 Vcvv 3448 ⊆ wss 3899 ↦ cmpt 5175 (class class class)co 7385 Fincfn 8916 ℂcc 11061 0cc0 11063 + caddc 11066 ℤcz 12558 Σcsu 15689 Σg cgsu 17445 ℂfldccnfld 21397 ℤringczring 21471 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1809 ax-4 1823 ax-5 1924 ax-6 1981 ax-7 2022 ax-8 2138 ax-9 2146 ax-10 2169 ax-11 2185 ax-12 2206 ax-ext 2728 ax-rep 5221 ax-sep 5240 ax-nul 5250 ax-pow 5316 ax-pr 5384 ax-un 7707 ax-inf2 9586 ax-cnex 11119 ax-resscn 11120 ax-1cn 11121 ax-icn 11122 ax-addcl 11123 ax-addrcl 11124 ax-mulcl 11125 ax-mulrcl 11126 ax-mulcom 11127 ax-addass 11128 ax-mulass 11129 ax-distr 11130 ax-i2m1 11131 ax-1ne0 11132 ax-1rid 11133 ax-rnegex 11134 ax-rrecex 11135 ax-cnre 11136 ax-pre-lttri 11137 ax-pre-lttrn 11138 ax-pre-ltadd 11139 ax-pre-mulgt0 11140 ax-pre-sup 11141 ax-addf 11142 |
| This theorem depends on definitions: df-bi 209 df-an 399 df-or 857 df-3or 1096 df-3an 1097 df-tru 1557 df-fal 1567 df-ex 1794 df-nf 1798 df-sb 2085 df-mo 2560 df-eu 2590 df-clab 2735 df-cleq 2748 df-clel 2831 df-nfc 2905 df-ne 2952 df-nel 3056 df-ral 3071 df-rex 3081 df-rmo 3361 df-reu 3362 df-rab 3409 df-v 3450 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4281 df-if 4475 df-pw 4551 df-sn 4577 df-pr 4579 df-tp 4581 df-op 4583 df-uni 4860 df-int 4900 df-iun 4945 df-br 5095 df-opab 5157 df-mpt 5176 df-tr 5202 df-id 5535 df-eprel 5540 df-po 5548 df-so 5549 df-fr 5593 df-se 5594 df-we 5595 df-xp 5646 df-rel 5647 df-cnv 5648 df-co 5649 df-dm 5650 df-rn 5651 df-res 5652 df-ima 5653 df-pred 6277 df-ord 6338 df-on 6339 df-lim 6340 df-suc 6341 df-iota 6466 df-fun 6512 df-fn 6513 df-f 6514 df-f1 6515 df-fo 6516 df-f1o 6517 df-fv 6518 df-isom 6519 df-riota 7342 df-ov 7388 df-oprab 7389 df-mpo 7390 df-om 7836 df-1st 7959 df-2nd 7960 df-supp 8129 df-frecs 8250 df-wrecs 8281 df-recs 8330 df-rdg 8369 df-1o 8425 df-er 8666 df-en 8917 df-dom 8918 df-sdom 8919 df-fin 8920 df-sup 9378 df-oi 9448 df-card 9887 df-pnf 11208 df-mnf 11209 df-xr 11210 df-ltxr 11211 df-le 11212 df-sub 11406 df-neg 11407 df-div 11835 df-nn 12201 df-2 12270 df-3 12271 df-4 12272 df-5 12273 df-6 12274 df-7 12275 df-8 12276 df-9 12277 df-n0 12472 df-z 12559 df-dec 12679 df-uz 12830 df-rp 12984 df-fz 13503 df-fzo 13650 df-seq 14005 df-exp 14065 df-hash 14334 df-cj 15102 df-re 15103 df-im 15104 df-sqrt 15238 df-abs 15239 df-clim 15491 df-sum 15690 df-struct 17159 df-sets 17176 df-slot 17194 df-ndx 17206 df-base 17222 df-ress 17243 df-plusg 17275 df-mulr 17276 df-starv 17277 df-tset 17281 df-ple 17282 df-ds 17284 df-unif 17285 df-0g 17446 df-gsum 17447 df-mgm 18650 df-sgrp 18729 df-mnd 18745 df-grp 18954 df-minusg 18955 df-cntz 19333 df-cmn 19798 df-abl 19799 df-mgp 20163 df-ur 20204 df-ring 20257 df-cring 20258 df-cnfld 21398 df-zring 21472 |
| This theorem is referenced by: gsummulgc2 33200 |
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