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Mirrors > Home > MPE Home > Th. List > gsumsnfd | Structured version Visualization version GIF version |
Description: Group sum of a singleton, deduction form, using bound-variable hypotheses instead of distinct variable conditions. (Contributed by Mario Carneiro, 19-Dec-2014.) (Revised by Thierry Arnoux, 28-Mar-2018.) (Revised by AV, 11-Dec-2019.) |
Ref | Expression |
---|---|
gsumsnd.b | ⊢ 𝐵 = (Base‘𝐺) |
gsumsnd.g | ⊢ (𝜑 → 𝐺 ∈ Mnd) |
gsumsnd.m | ⊢ (𝜑 → 𝑀 ∈ 𝑉) |
gsumsnd.c | ⊢ (𝜑 → 𝐶 ∈ 𝐵) |
gsumsnd.s | ⊢ ((𝜑 ∧ 𝑘 = 𝑀) → 𝐴 = 𝐶) |
gsumsnfd.p | ⊢ Ⅎ𝑘𝜑 |
gsumsnfd.c | ⊢ Ⅎ𝑘𝐶 |
Ref | Expression |
---|---|
gsumsnfd | ⊢ (𝜑 → (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝐴)) = 𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | gsumsnfd.p | . . . . 5 ⊢ Ⅎ𝑘𝜑 | |
2 | elsni 4581 | . . . . . 6 ⊢ (𝑘 ∈ {𝑀} → 𝑘 = 𝑀) | |
3 | gsumsnd.s | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 = 𝑀) → 𝐴 = 𝐶) | |
4 | 2, 3 | sylan2 592 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ {𝑀}) → 𝐴 = 𝐶) |
5 | 1, 4 | mpteq2da 5175 | . . . 4 ⊢ (𝜑 → (𝑘 ∈ {𝑀} ↦ 𝐴) = (𝑘 ∈ {𝑀} ↦ 𝐶)) |
6 | 5 | oveq2d 7311 | . . 3 ⊢ (𝜑 → (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝐴)) = (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝐶))) |
7 | gsumsnd.g | . . . 4 ⊢ (𝜑 → 𝐺 ∈ Mnd) | |
8 | snfi 8858 | . . . . 5 ⊢ {𝑀} ∈ Fin | |
9 | 8 | a1i 11 | . . . 4 ⊢ (𝜑 → {𝑀} ∈ Fin) |
10 | gsumsnd.c | . . . 4 ⊢ (𝜑 → 𝐶 ∈ 𝐵) | |
11 | gsumsnfd.c | . . . . 5 ⊢ Ⅎ𝑘𝐶 | |
12 | gsumsnd.b | . . . . 5 ⊢ 𝐵 = (Base‘𝐺) | |
13 | eqid 2733 | . . . . 5 ⊢ (.g‘𝐺) = (.g‘𝐺) | |
14 | 11, 12, 13 | gsumconstf 19564 | . . . 4 ⊢ ((𝐺 ∈ Mnd ∧ {𝑀} ∈ Fin ∧ 𝐶 ∈ 𝐵) → (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝐶)) = ((♯‘{𝑀})(.g‘𝐺)𝐶)) |
15 | 7, 9, 10, 14 | syl3anc 1369 | . . 3 ⊢ (𝜑 → (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝐶)) = ((♯‘{𝑀})(.g‘𝐺)𝐶)) |
16 | 6, 15 | eqtrd 2773 | . 2 ⊢ (𝜑 → (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝐴)) = ((♯‘{𝑀})(.g‘𝐺)𝐶)) |
17 | gsumsnd.m | . . . 4 ⊢ (𝜑 → 𝑀 ∈ 𝑉) | |
18 | hashsng 14112 | . . . 4 ⊢ (𝑀 ∈ 𝑉 → (♯‘{𝑀}) = 1) | |
19 | 17, 18 | syl 17 | . . 3 ⊢ (𝜑 → (♯‘{𝑀}) = 1) |
20 | 19 | oveq1d 7310 | . 2 ⊢ (𝜑 → ((♯‘{𝑀})(.g‘𝐺)𝐶) = (1(.g‘𝐺)𝐶)) |
21 | 12, 13 | mulg1 18739 | . . 3 ⊢ (𝐶 ∈ 𝐵 → (1(.g‘𝐺)𝐶) = 𝐶) |
22 | 10, 21 | syl 17 | . 2 ⊢ (𝜑 → (1(.g‘𝐺)𝐶) = 𝐶) |
23 | 16, 20, 22 | 3eqtrd 2777 | 1 ⊢ (𝜑 → (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝐴)) = 𝐶) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 = wceq 1537 Ⅎwnf 1781 ∈ wcel 2101 Ⅎwnfc 2882 {csn 4564 ↦ cmpt 5160 ‘cfv 6447 (class class class)co 7295 Fincfn 8753 1c1 10900 ♯chash 14072 Basecbs 16940 Σg cgsu 17179 Mndcmnd 18413 .gcmg 18728 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1793 ax-4 1807 ax-5 1909 ax-6 1967 ax-7 2007 ax-8 2103 ax-9 2111 ax-10 2132 ax-11 2149 ax-12 2166 ax-ext 2704 ax-rep 5212 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7608 ax-cnex 10955 ax-resscn 10956 ax-1cn 10957 ax-icn 10958 ax-addcl 10959 ax-addrcl 10960 ax-mulcl 10961 ax-mulrcl 10962 ax-mulcom 10963 ax-addass 10964 ax-mulass 10965 ax-distr 10966 ax-i2m1 10967 ax-1ne0 10968 ax-1rid 10969 ax-rnegex 10970 ax-rrecex 10971 ax-cnre 10972 ax-pre-lttri 10973 ax-pre-lttrn 10974 ax-pre-ltadd 10975 ax-pre-mulgt0 10976 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1540 df-fal 1550 df-ex 1778 df-nf 1782 df-sb 2063 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2884 df-ne 2939 df-nel 3045 df-ral 3060 df-rex 3069 df-rmo 3222 df-reu 3223 df-rab 3224 df-v 3436 df-sbc 3719 df-csb 3835 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3908 df-nul 4260 df-if 4463 df-pw 4538 df-sn 4565 df-pr 4567 df-op 4571 df-uni 4842 df-int 4883 df-iun 4929 df-br 5078 df-opab 5140 df-mpt 5161 df-tr 5195 df-id 5491 df-eprel 5497 df-po 5505 df-so 5506 df-fr 5546 df-se 5547 df-we 5548 df-xp 5597 df-rel 5598 df-cnv 5599 df-co 5600 df-dm 5601 df-rn 5602 df-res 5603 df-ima 5604 df-pred 6206 df-ord 6273 df-on 6274 df-lim 6275 df-suc 6276 df-iota 6399 df-fun 6449 df-fn 6450 df-f 6451 df-f1 6452 df-fo 6453 df-f1o 6454 df-fv 6455 df-isom 6456 df-riota 7252 df-ov 7298 df-oprab 7299 df-mpo 7300 df-om 7733 df-1st 7851 df-2nd 7852 df-supp 7998 df-frecs 8117 df-wrecs 8148 df-recs 8222 df-rdg 8261 df-1o 8317 df-er 8518 df-en 8754 df-dom 8755 df-sdom 8756 df-fin 8757 df-oi 9297 df-card 9725 df-pnf 11039 df-mnf 11040 df-xr 11041 df-ltxr 11042 df-le 11043 df-sub 11235 df-neg 11236 df-nn 12002 df-n0 12262 df-z 12348 df-uz 12611 df-fz 13268 df-fzo 13411 df-seq 13750 df-hash 14073 df-0g 17180 df-gsum 17181 df-mgm 18354 df-sgrp 18403 df-mnd 18414 df-mulg 18729 df-cntz 18951 |
This theorem is referenced by: gsumsnd 19581 gsumsnf 19582 gsumunsnfd 19586 esumsnf 32060 gsumdifsndf 45415 |
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