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| Mirrors > Home > MPE Home > Th. List > Mathboxes > gsummulgc2 | Structured version Visualization version GIF version | ||
| Description: A finite group sum multiplied by a constant. (Contributed by Thierry Arnoux, 5-Oct-2025.) |
| Ref | Expression |
|---|---|
| gsummulgc1.b | ⊢ 𝐵 = (Base‘𝑀) |
| gsummulgc1.t | ⊢ · = (.g‘𝑀) |
| gsummulgc1.r | ⊢ (𝜑 → 𝑀 ∈ Grp) |
| gsummulgc1.a | ⊢ (𝜑 → 𝐴 ∈ Fin) |
| gsummulgc1.y | ⊢ (𝜑 → 𝑌 ∈ 𝐵) |
| gsummulgc1.x | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝑋 ∈ ℤ) |
| Ref | Expression |
|---|---|
| gsummulgc2 | ⊢ (𝜑 → (𝑀 Σg (𝑘 ∈ 𝐴 ↦ (𝑋 · 𝑌))) = (Σ𝑘 ∈ 𝐴 𝑋 · 𝑌)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | zringbas 21706 | . . 3 ⊢ ℤ = (Base‘ℤring) | |
| 2 | zring0 21711 | . . 3 ⊢ 0 = (0g‘ℤring) | |
| 3 | zringring 21702 | . . . 4 ⊢ ℤring ∈ Ring | |
| 4 | ringcmn 20458 | . . . 4 ⊢ (ℤring ∈ Ring → ℤring ∈ CMnd) | |
| 5 | 3, 4 | mp1i 14 | . . 3 ⊢ (𝜑 → ℤring ∈ CMnd) |
| 6 | gsummulgc1.r | . . . 4 ⊢ (𝜑 → 𝑀 ∈ Grp) | |
| 7 | 6 | grpmndd 19104 | . . 3 ⊢ (𝜑 → 𝑀 ∈ Mnd) |
| 8 | gsummulgc1.a | . . 3 ⊢ (𝜑 → 𝐴 ∈ Fin) | |
| 9 | gsummulgc1.y | . . . . 5 ⊢ (𝜑 → 𝑌 ∈ 𝐵) | |
| 10 | gsummulgc1.t | . . . . . 6 ⊢ · = (.g‘𝑀) | |
| 11 | eqid 2760 | . . . . . 6 ⊢ (𝑥 ∈ ℤ ↦ (𝑥 · 𝑌)) = (𝑥 ∈ ℤ ↦ (𝑥 · 𝑌)) | |
| 12 | gsummulgc1.b | . . . . . 6 ⊢ 𝐵 = (Base‘𝑀) | |
| 13 | 10, 11, 12 | mulgghm2 21729 | . . . . 5 ⊢ ((𝑀 ∈ Grp ∧ 𝑌 ∈ 𝐵) → (𝑥 ∈ ℤ ↦ (𝑥 · 𝑌)) ∈ (ℤring GrpHom 𝑀)) |
| 14 | 6, 9, 13 | syl2anc 596 | . . . 4 ⊢ (𝜑 → (𝑥 ∈ ℤ ↦ (𝑥 · 𝑌)) ∈ (ℤring GrpHom 𝑀)) |
| 15 | ghmmhm 19387 | . . . 4 ⊢ ((𝑥 ∈ ℤ ↦ (𝑥 · 𝑌)) ∈ (ℤring GrpHom 𝑀) → (𝑥 ∈ ℤ ↦ (𝑥 · 𝑌)) ∈ (ℤring MndHom 𝑀)) | |
| 16 | 14, 15 | syl 18 | . . 3 ⊢ (𝜑 → (𝑥 ∈ ℤ ↦ (𝑥 · 𝑌)) ∈ (ℤring MndHom 𝑀)) |
| 17 | gsummulgc1.x | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝑋 ∈ ℤ) | |
| 18 | eqid 2760 | . . . 4 ⊢ (𝑘 ∈ 𝐴 ↦ 𝑋) = (𝑘 ∈ 𝐴 ↦ 𝑋) | |
| 19 | 0zd 12660 | . . . 4 ⊢ (𝜑 → 0 ∈ ℤ) | |
| 20 | 18, 8, 17, 19 | fsuppmptdm 9346 | . . 3 ⊢ (𝜑 → (𝑘 ∈ 𝐴 ↦ 𝑋) finSupp 0) |
| 21 | oveq1 7416 | . . 3 ⊢ (𝑥 = 𝑋 → (𝑥 · 𝑌) = (𝑋 · 𝑌)) | |
| 22 | oveq1 7416 | . . 3 ⊢ (𝑥 = (ℤring Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) → (𝑥 · 𝑌) = ((ℤring Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) · 𝑌)) | |
| 23 | 1, 2, 5, 7, 8, 16, 17, 20, 21, 22 | gsummhm2 20100 | . 2 ⊢ (𝜑 → (𝑀 Σg (𝑘 ∈ 𝐴 ↦ (𝑋 · 𝑌))) = ((ℤring Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) · 𝑌)) |
| 24 | 8, 17 | gsumzrsum 33545 | . . 3 ⊢ (𝜑 → (ℤring Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) = Σ𝑘 ∈ 𝐴 𝑋) |
| 25 | 24 | oveq1d 7424 | . 2 ⊢ (𝜑 → ((ℤring Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) · 𝑌) = (Σ𝑘 ∈ 𝐴 𝑋 · 𝑌)) |
| 26 | 23, 25 | eqtrd 2795 | 1 ⊢ (𝜑 → (𝑀 Σg (𝑘 ∈ 𝐴 ↦ (𝑋 · 𝑌))) = (Σ𝑘 ∈ 𝐴 𝑋 · 𝑌)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ↦ cmpt 5186 ‘cfv 6528 (class class class)co 7409 Fincfn 8952 0cc0 11157 ℤcz 12648 Σcsu 15806 Basecbs 17334 Σg cgsu 17558 MndHom cmhm 18923 Grpcgrp 19091 .gcmg 19224 GrpHom cghm 19374 CMndccmn 19941 Ringcrg 20406 ℤringczring 21699 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7735 ax-inf2 9620 ax-cnex 11213 ax-resscn 11214 ax-1cn 11215 ax-icn 11216 ax-addcl 11217 ax-addrcl 11218 ax-mulcl 11219 ax-mulrcl 11220 ax-mulcom 11221 ax-addass 11222 ax-mulass 11223 ax-distr 11224 ax-i2m1 11225 ax-1ne0 11226 ax-1rid 11227 ax-rnegex 11228 ax-rrecex 11229 ax-cnre 11230 ax-pre-lttri 11231 ax-pre-lttrn 11232 ax-pre-ltadd 11233 ax-pre-mulgt0 11234 ax-pre-sup 11235 ax-addf 11236 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 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 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5543 df-eprel 5548 df-po 5556 df-so 5557 df-fr 5601 df-se 5602 df-we 5603 df-xp 5654 df-rel 5655 df-cnv 5656 df-co 5657 df-dm 5658 df-rn 5659 df-res 5660 df-ima 5661 df-pred 6294 df-ord 6355 df-on 6356 df-lim 6357 df-suc 6358 df-iota 6484 df-fun 6530 df-fn 6531 df-f 6532 df-f1 6533 df-fo 6534 df-f1o 6535 df-fv 6536 df-isom 6537 df-riota 7366 df-ov 7412 df-oprab 7413 df-mpo 7414 df-om 7862 df-1st 7985 df-2nd 7986 df-supp 8157 df-frecs 8278 df-wrecs 8309 df-recs 8358 df-rdg 8397 df-1o 8455 df-er 8696 df-map 8828 df-en 8953 df-dom 8954 df-sdom 8955 df-fin 8956 df-fsupp 9332 df-sup 9412 df-oi 9482 df-card 9977 df-pnf 11302 df-mnf 11303 df-xr 11304 df-ltxr 11305 df-le 11306 df-sub 11500 df-neg 11501 df-div 11929 df-nn 12291 df-2 12360 df-3 12361 df-4 12362 df-5 12363 df-6 12364 df-7 12365 df-8 12366 df-9 12367 df-n0 12562 df-z 12649 df-dec 12770 df-uz 12921 df-rp 13076 df-fz 13595 df-fzo 13743 df-seq 14099 df-exp 14159 df-hash 14428 df-cj 15219 df-re 15220 df-im 15221 df-sqrt 15355 df-abs 15356 df-clim 15608 df-sum 15807 df-struct 17272 df-sets 17289 df-slot 17307 df-ndx 17319 df-base 17335 df-ress 17356 df-plusg 17388 df-mulr 17389 df-starv 17390 df-tset 17394 df-ple 17395 df-ds 17397 df-unif 17398 df-0g 17559 df-gsum 17560 df-mgm 18763 df-sgrp 18855 df-mnd 18871 df-mhm 18925 df-grp 19094 df-minusg 19095 df-mulg 19225 df-subg 19280 df-ghm 19375 df-cntz 19478 df-cmn 19943 df-abl 19944 df-mgp 20308 df-rng 20322 df-ur 20355 df-ring 20408 df-cring 20409 df-subrng 20745 df-subrg 20769 df-cnfld 21626 df-zring 21700 |
| This theorem is used by: elrgspnlem2 33723 |
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