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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 21667 | . . 3 ⊢ ℤ = (Base‘ℤring) | |
| 2 | zring0 21672 | . . 3 ⊢ 0 = (0g‘ℤring) | |
| 3 | zringring 21663 | . . . 4 ⊢ ℤring ∈ Ring | |
| 4 | ringcmn 20424 | . . . 4 ⊢ (ℤring ∈ Ring → ℤring ∈ CMnd) | |
| 5 | 3, 4 | mp1i 14 | . . 3 ⊢ (𝜑 → ℤring ∈ CMnd) |
| 6 | gsummulgc1.r | . . . 4 ⊢ (𝜑 → 𝑀 ∈ Grp) | |
| 7 | 6 | grpmndd 19071 | . . 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 2762 | . . . . . 6 ⊢ (𝑥 ∈ ℤ ↦ (𝑥 · 𝑌)) = (𝑥 ∈ ℤ ↦ (𝑥 · 𝑌)) | |
| 12 | gsummulgc1.b | . . . . . 6 ⊢ 𝐵 = (Base‘𝑀) | |
| 13 | 10, 11, 12 | mulgghm2 21690 | . . . . 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 19354 | . . . 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 2762 | . . . 4 ⊢ (𝑘 ∈ 𝐴 ↦ 𝑋) = (𝑘 ∈ 𝐴 ↦ 𝑋) | |
| 19 | 0zd 12630 | . . . 4 ⊢ (𝜑 → 0 ∈ ℤ) | |
| 20 | 18, 8, 17, 19 | fsuppmptdm 9349 | . . 3 ⊢ (𝜑 → (𝑘 ∈ 𝐴 ↦ 𝑋) finSupp 0) |
| 21 | oveq1 7423 | . . 3 ⊢ (𝑥 = 𝑋 → (𝑥 · 𝑌) = (𝑋 · 𝑌)) | |
| 22 | oveq1 7423 | . . 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 20067 | . 2 ⊢ (𝜑 → (𝑀 Σg (𝑘 ∈ 𝐴 ↦ (𝑋 · 𝑌))) = ((ℤring Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) · 𝑌)) |
| 24 | 8, 17 | gsumzrsum 33492 | . . 3 ⊢ (𝜑 → (ℤring Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) = Σ𝑘 ∈ 𝐴 𝑋) |
| 25 | 24 | oveq1d 7431 | . 2 ⊢ (𝜑 → ((ℤring Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) · 𝑌) = (Σ𝑘 ∈ 𝐴 𝑋 · 𝑌)) |
| 26 | 23, 25 | eqtrd 2797 | 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 5190 ‘cfv 6537 (class class class)co 7416 Fincfn 8955 0cc0 11127 ℤcz 12618 Σcsu 15775 Basecbs 17305 Σg cgsu 17529 MndHom cmhm 18890 Grpcgrp 19058 .gcmg 19191 GrpHom cghm 19341 CMndccmn 19908 Ringcrg 20373 ℤringczring 21660 |
| 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 2215 ax-ext 2734 ax-rep 5236 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7739 ax-inf2 9623 ax-cnex 11183 ax-resscn 11184 ax-1cn 11185 ax-icn 11186 ax-addcl 11187 ax-addrcl 11188 ax-mulcl 11189 ax-mulrcl 11190 ax-mulcom 11191 ax-addass 11192 ax-mulass 11193 ax-distr 11194 ax-i2m1 11195 ax-1ne0 11196 ax-1rid 11197 ax-rnegex 11198 ax-rrecex 11199 ax-cnre 11200 ax-pre-lttri 11201 ax-pre-lttrn 11202 ax-pre-ltadd 11203 ax-pre-mulgt0 11204 ax-pre-sup 11205 ax-addf 11206 |
| 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 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-rmo 3367 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-tp 4592 df-op 4594 df-uni 4871 df-int 4911 df-iun 4956 df-br 5108 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-se 5613 df-we 5614 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-isom 6546 df-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-om 7866 df-1st 7989 df-2nd 7990 df-supp 8162 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-1o 8458 df-er 8699 df-map 8831 df-en 8956 df-dom 8957 df-sdom 8958 df-fin 8959 df-fsupp 9335 df-sup 9415 df-oi 9485 df-card 9947 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11470 df-neg 11471 df-div 11899 df-nn 12261 df-2 12330 df-3 12331 df-4 12332 df-5 12333 df-6 12334 df-7 12335 df-8 12336 df-9 12337 df-n0 12532 df-z 12619 df-dec 12740 df-uz 12891 df-rp 13045 df-fz 13564 df-fzo 13712 df-seq 14068 df-exp 14128 df-hash 14397 df-cj 15188 df-re 15189 df-im 15190 df-sqrt 15324 df-abs 15325 df-clim 15577 df-sum 15776 df-struct 17243 df-sets 17260 df-slot 17278 df-ndx 17290 df-base 17306 df-ress 17327 df-plusg 17359 df-mulr 17360 df-starv 17361 df-tset 17365 df-ple 17366 df-ds 17368 df-unif 17369 df-0g 17530 df-gsum 17531 df-mgm 18734 df-sgrp 18823 df-mnd 18839 df-mhm 18892 df-grp 19061 df-minusg 19062 df-mulg 19192 df-subg 19247 df-ghm 19342 df-cntz 19445 df-cmn 19910 df-abl 19911 df-mgp 20275 df-rng 20289 df-ur 20322 df-ring 20375 df-cring 20376 df-subrng 20709 df-subrg 20733 df-cnfld 21587 df-zring 21661 |
| This theorem is used by: elrgspnlem2 33670 |
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