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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 2736 | . 2 ⊢ (Base‘𝐺) = (Base‘𝐺) | |
| 2 | gsumz.z | . 2 ⊢ 0 = (0g‘𝐺) | |
| 3 | eqid 2736 | . 2 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | eqid 2736 | . 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 6854 | . . . . . 6 ⊢ 0 ∈ V |
| 8 | 7 | snid 4606 | . . . . 5 ⊢ 0 ∈ { 0 } |
| 9 | 1, 2, 3, 4 | gsumvallem2 18802 | . . . . 5 ⊢ (𝐺 ∈ Mnd → {𝑥 ∈ (Base‘𝐺) ∣ ∀𝑦 ∈ (Base‘𝐺)((𝑥(+g‘𝐺)𝑦) = 𝑦 ∧ (𝑦(+g‘𝐺)𝑥) = 𝑦)} = { 0 }) |
| 10 | 8, 9 | eleqtrrid 2843 | . . . 4 ⊢ (𝐺 ∈ Mnd → 0 ∈ {𝑥 ∈ (Base‘𝐺) ∣ ∀𝑦 ∈ (Base‘𝐺)((𝑥(+g‘𝐺)𝑦) = 𝑦 ∧ (𝑦(+g‘𝐺)𝑥) = 𝑦)}) |
| 11 | 10 | ad2antrr 727 | . . 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 7067 | . 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 18651 | 1 ⊢ ((𝐺 ∈ Mnd ∧ 𝐴 ∈ 𝑉) → (𝐺 Σg (𝑘 ∈ 𝐴 ↦ 0 )) = 0 ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ∀wral 3051 {crab 3389 {csn 4567 ↦ cmpt 5166 ‘cfv 6498 (class class class)co 7367 Basecbs 17179 +gcplusg 17220 0gc0g 17402 Σg cgsu 17403 Mndcmnd 18702 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3062 df-rmo 3342 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-mpt 5167 df-id 5526 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6265 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-seq 13964 df-0g 17404 df-gsum 17405 df-mgm 18608 df-sgrp 18687 df-mnd 18703 |
| This theorem is referenced by: gsumval3 19882 gsumzres 19884 gsumzcl2 19885 gsumzf1o 19887 gsumzaddlem 19896 gsumzmhm 19912 gsumzoppg 19919 gsum2d 19947 dprdfeq0 19999 dprddisj2 20016 freshmansdream 21554 mplsubrglem 21982 evlslem1 22060 mhpsclcl 22113 mhpmulcl 22115 coe1tmmul2 22241 coe1tmmul 22242 cply1mul 22261 gsummoncoe1 22273 dmatmul 22462 smadiadetlem1a 22628 cpmatmcllem 22683 mp2pm2mplem4 22774 chfacfscmulgsum 22825 chfacfpmmulgsum 22829 tsms0 24107 tgptsmscls 24115 tdeglem4 26025 mdegmullem 26043 dchrptlem3 27229 gsummptres 33113 gsummptres2 33114 gsumfs2d 33122 suppgsumssiun 33133 elrgspnlem1 33303 elrgspnsubrunlem2 33309 elrspunidl 33488 rprmdvdsprod 33594 evl1deg1 33636 evl1deg2 33637 evl1deg3 33638 mplmulmvr 33683 esplyfval1 33717 lbsdiflsp0 33770 fedgmullem2 33774 extdgfialglem2 33837 esum0 34193 ply1mulgsumlem2 48863 lincvalsc0 48897 linc0scn0 48899 |
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