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| Mirrors > Home > MPE Home > Th. List > gsumz | Structured version Visualization version GIF version | ||
| Description: Value of a group sum over the zero element. (Contributed by Mario Carneiro, 7-Dec-2014.) |
| Ref | Expression |
|---|---|
| gsumz.z | ⊢ 0 = (0g‘𝐺) |
| Ref | Expression |
|---|---|
| gsumz | ⊢ ((𝐺 ∈ Mnd ∧ 𝐴 ∈ 𝑉) → (𝐺 Σg (𝑘 ∈ 𝐴 ↦ 0 )) = 0 ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2734 | . 2 ⊢ (Base‘𝐺) = (Base‘𝐺) | |
| 2 | gsumz.z | . 2 ⊢ 0 = (0g‘𝐺) | |
| 3 | eqid 2734 | . 2 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | eqid 2734 | . 2 ⊢ {𝑥 ∈ (Base‘𝐺) ∣ ∀𝑦 ∈ (Base‘𝐺)((𝑥(+g‘𝐺)𝑦) = 𝑦 ∧ (𝑦(+g‘𝐺)𝑥) = 𝑦)} = {𝑥 ∈ (Base‘𝐺) ∣ ∀𝑦 ∈ (Base‘𝐺)((𝑥(+g‘𝐺)𝑦) = 𝑦 ∧ (𝑦(+g‘𝐺)𝑥) = 𝑦)} | |
| 5 | simpl 482 | . 2 ⊢ ((𝐺 ∈ Mnd ∧ 𝐴 ∈ 𝑉) → 𝐺 ∈ Mnd) | |
| 6 | simpr 484 | . 2 ⊢ ((𝐺 ∈ Mnd ∧ 𝐴 ∈ 𝑉) → 𝐴 ∈ 𝑉) | |
| 7 | 2 | fvexi 6846 | . . . . . 6 ⊢ 0 ∈ V |
| 8 | 7 | snid 4617 | . . . . 5 ⊢ 0 ∈ { 0 } |
| 9 | 1, 2, 3, 4 | gsumvallem2 18757 | . . . . 5 ⊢ (𝐺 ∈ Mnd → {𝑥 ∈ (Base‘𝐺) ∣ ∀𝑦 ∈ (Base‘𝐺)((𝑥(+g‘𝐺)𝑦) = 𝑦 ∧ (𝑦(+g‘𝐺)𝑥) = 𝑦)} = { 0 }) |
| 10 | 8, 9 | eleqtrrid 2841 | . . . 4 ⊢ (𝐺 ∈ Mnd → 0 ∈ {𝑥 ∈ (Base‘𝐺) ∣ ∀𝑦 ∈ (Base‘𝐺)((𝑥(+g‘𝐺)𝑦) = 𝑦 ∧ (𝑦(+g‘𝐺)𝑥) = 𝑦)}) |
| 11 | 10 | ad2antrr 726 | . . 3 ⊢ (((𝐺 ∈ Mnd ∧ 𝐴 ∈ 𝑉) ∧ 𝑘 ∈ 𝐴) → 0 ∈ {𝑥 ∈ (Base‘𝐺) ∣ ∀𝑦 ∈ (Base‘𝐺)((𝑥(+g‘𝐺)𝑦) = 𝑦 ∧ (𝑦(+g‘𝐺)𝑥) = 𝑦)}) |
| 12 | 11 | fmpttd 7058 | . 2 ⊢ ((𝐺 ∈ Mnd ∧ 𝐴 ∈ 𝑉) → (𝑘 ∈ 𝐴 ↦ 0 ):𝐴⟶{𝑥 ∈ (Base‘𝐺) ∣ ∀𝑦 ∈ (Base‘𝐺)((𝑥(+g‘𝐺)𝑦) = 𝑦 ∧ (𝑦(+g‘𝐺)𝑥) = 𝑦)}) |
| 13 | 1, 2, 3, 4, 5, 6, 12 | gsumval1 18606 | 1 ⊢ ((𝐺 ∈ Mnd ∧ 𝐴 ∈ 𝑉) → (𝐺 Σg (𝑘 ∈ 𝐴 ↦ 0 )) = 0 ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2113 ∀wral 3049 {crab 3397 {csn 4578 ↦ cmpt 5177 ‘cfv 6490 (class class class)co 7356 Basecbs 17134 +gcplusg 17175 0gc0g 17357 Σg cgsu 17358 Mndcmnd 18657 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2706 ax-sep 5239 ax-nul 5249 ax-pow 5308 ax-pr 5375 ax-un 7678 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2567 df-clab 2713 df-cleq 2726 df-clel 2809 df-nfc 2883 df-ne 2931 df-ral 3050 df-rex 3059 df-rmo 3348 df-reu 3349 df-rab 3398 df-v 3440 df-sbc 3739 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4579 df-pr 4581 df-op 4585 df-uni 4862 df-br 5097 df-opab 5159 df-mpt 5178 df-id 5517 df-xp 5628 df-rel 5629 df-cnv 5630 df-co 5631 df-dm 5632 df-rn 5633 df-res 5634 df-ima 5635 df-pred 6257 df-iota 6446 df-fun 6492 df-fn 6493 df-f 6494 df-f1 6495 df-fo 6496 df-f1o 6497 df-fv 6498 df-riota 7313 df-ov 7359 df-oprab 7360 df-mpo 7361 df-frecs 8221 df-wrecs 8252 df-recs 8301 df-rdg 8339 df-seq 13923 df-0g 17359 df-gsum 17360 df-mgm 18563 df-sgrp 18642 df-mnd 18658 |
| This theorem is referenced by: gsumval3 19834 gsumzres 19836 gsumzcl2 19837 gsumzf1o 19839 gsumzaddlem 19848 gsumzmhm 19864 gsumzoppg 19871 gsum2d 19899 dprdfeq0 19951 dprddisj2 19968 freshmansdream 21527 mplsubrglem 21957 evlslem1 22035 mhpsclcl 22088 mhpmulcl 22090 coe1tmmul2 22216 coe1tmmul 22217 cply1mul 22238 gsummoncoe1 22250 dmatmul 22439 smadiadetlem1a 22605 cpmatmcllem 22660 mp2pm2mplem4 22751 chfacfscmulgsum 22802 chfacfpmmulgsum 22806 tsms0 24084 tgptsmscls 24092 tdeglem4 26019 mdegmullem 26037 dchrptlem3 27231 gsummptres 33084 gsummptres2 33085 gsumfs2d 33093 elrgspnlem1 33273 elrgspnsubrunlem2 33279 elrspunidl 33458 rprmdvdsprod 33564 evl1deg1 33606 evl1deg2 33607 evl1deg3 33608 mplmulmvr 33653 lbsdiflsp0 33732 fedgmullem2 33736 extdgfialglem2 33799 esum0 34155 ply1mulgsumlem2 48575 lincvalsc0 48609 linc0scn0 48611 |
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