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Mirrors > Home > MPE Home > Th. List > gsumsub | Structured version Visualization version GIF version |
Description: The difference of two group sums. (Contributed by Mario Carneiro, 28-Dec-2014.) (Revised by AV, 6-Jun-2019.) |
Ref | Expression |
---|---|
gsumsub.b | ⊢ 𝐵 = (Base‘𝐺) |
gsumsub.z | ⊢ 0 = (0g‘𝐺) |
gsumsub.m | ⊢ − = (-g‘𝐺) |
gsumsub.g | ⊢ (𝜑 → 𝐺 ∈ Abel) |
gsumsub.a | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
gsumsub.f | ⊢ (𝜑 → 𝐹:𝐴⟶𝐵) |
gsumsub.h | ⊢ (𝜑 → 𝐻:𝐴⟶𝐵) |
gsumsub.fn | ⊢ (𝜑 → 𝐹 finSupp 0 ) |
gsumsub.hn | ⊢ (𝜑 → 𝐻 finSupp 0 ) |
Ref | Expression |
---|---|
gsumsub | ⊢ (𝜑 → (𝐺 Σg (𝐹 ∘f − 𝐻)) = ((𝐺 Σg 𝐹) − (𝐺 Σg 𝐻))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | gsumsub.b | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
2 | gsumsub.z | . . . 4 ⊢ 0 = (0g‘𝐺) | |
3 | eqid 2821 | . . . 4 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
4 | gsumsub.g | . . . . 5 ⊢ (𝜑 → 𝐺 ∈ Abel) | |
5 | ablcmn 18913 | . . . . 5 ⊢ (𝐺 ∈ Abel → 𝐺 ∈ CMnd) | |
6 | 4, 5 | syl 17 | . . . 4 ⊢ (𝜑 → 𝐺 ∈ CMnd) |
7 | gsumsub.a | . . . 4 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
8 | gsumsub.f | . . . 4 ⊢ (𝜑 → 𝐹:𝐴⟶𝐵) | |
9 | eqid 2821 | . . . . . . 7 ⊢ (invg‘𝐺) = (invg‘𝐺) | |
10 | ablgrp 18911 | . . . . . . . 8 ⊢ (𝐺 ∈ Abel → 𝐺 ∈ Grp) | |
11 | 4, 10 | syl 17 | . . . . . . 7 ⊢ (𝜑 → 𝐺 ∈ Grp) |
12 | 1, 9, 11 | grpinvf1o 18169 | . . . . . 6 ⊢ (𝜑 → (invg‘𝐺):𝐵–1-1-onto→𝐵) |
13 | f1of 6615 | . . . . . 6 ⊢ ((invg‘𝐺):𝐵–1-1-onto→𝐵 → (invg‘𝐺):𝐵⟶𝐵) | |
14 | 12, 13 | syl 17 | . . . . 5 ⊢ (𝜑 → (invg‘𝐺):𝐵⟶𝐵) |
15 | gsumsub.h | . . . . 5 ⊢ (𝜑 → 𝐻:𝐴⟶𝐵) | |
16 | fco 6531 | . . . . 5 ⊢ (((invg‘𝐺):𝐵⟶𝐵 ∧ 𝐻:𝐴⟶𝐵) → ((invg‘𝐺) ∘ 𝐻):𝐴⟶𝐵) | |
17 | 14, 15, 16 | syl2anc 586 | . . . 4 ⊢ (𝜑 → ((invg‘𝐺) ∘ 𝐻):𝐴⟶𝐵) |
18 | gsumsub.fn | . . . 4 ⊢ (𝜑 → 𝐹 finSupp 0 ) | |
19 | 2 | fvexi 6684 | . . . . . 6 ⊢ 0 ∈ V |
20 | 19 | a1i 11 | . . . . 5 ⊢ (𝜑 → 0 ∈ V) |
21 | 1 | fvexi 6684 | . . . . . 6 ⊢ 𝐵 ∈ V |
22 | 21 | a1i 11 | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ V) |
23 | gsumsub.hn | . . . . 5 ⊢ (𝜑 → 𝐻 finSupp 0 ) | |
24 | 2, 9 | grpinvid 18160 | . . . . . 6 ⊢ (𝐺 ∈ Grp → ((invg‘𝐺)‘ 0 ) = 0 ) |
25 | 11, 24 | syl 17 | . . . . 5 ⊢ (𝜑 → ((invg‘𝐺)‘ 0 ) = 0 ) |
26 | 20, 15, 14, 7, 22, 23, 25 | fsuppco2 8866 | . . . 4 ⊢ (𝜑 → ((invg‘𝐺) ∘ 𝐻) finSupp 0 ) |
27 | 1, 2, 3, 6, 7, 8, 17, 18, 26 | gsumadd 19043 | . . 3 ⊢ (𝜑 → (𝐺 Σg (𝐹 ∘f (+g‘𝐺)((invg‘𝐺) ∘ 𝐻))) = ((𝐺 Σg 𝐹)(+g‘𝐺)(𝐺 Σg ((invg‘𝐺) ∘ 𝐻)))) |
28 | 1, 2, 9, 4, 7, 15, 23 | gsuminv 19066 | . . . 4 ⊢ (𝜑 → (𝐺 Σg ((invg‘𝐺) ∘ 𝐻)) = ((invg‘𝐺)‘(𝐺 Σg 𝐻))) |
29 | 28 | oveq2d 7172 | . . 3 ⊢ (𝜑 → ((𝐺 Σg 𝐹)(+g‘𝐺)(𝐺 Σg ((invg‘𝐺) ∘ 𝐻))) = ((𝐺 Σg 𝐹)(+g‘𝐺)((invg‘𝐺)‘(𝐺 Σg 𝐻)))) |
30 | 27, 29 | eqtrd 2856 | . 2 ⊢ (𝜑 → (𝐺 Σg (𝐹 ∘f (+g‘𝐺)((invg‘𝐺) ∘ 𝐻))) = ((𝐺 Σg 𝐹)(+g‘𝐺)((invg‘𝐺)‘(𝐺 Σg 𝐻)))) |
31 | 8 | ffvelrnda 6851 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → (𝐹‘𝑘) ∈ 𝐵) |
32 | 15 | ffvelrnda 6851 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → (𝐻‘𝑘) ∈ 𝐵) |
33 | gsumsub.m | . . . . . . 7 ⊢ − = (-g‘𝐺) | |
34 | 1, 3, 9, 33 | grpsubval 18149 | . . . . . 6 ⊢ (((𝐹‘𝑘) ∈ 𝐵 ∧ (𝐻‘𝑘) ∈ 𝐵) → ((𝐹‘𝑘) − (𝐻‘𝑘)) = ((𝐹‘𝑘)(+g‘𝐺)((invg‘𝐺)‘(𝐻‘𝑘)))) |
35 | 31, 32, 34 | syl2anc 586 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → ((𝐹‘𝑘) − (𝐻‘𝑘)) = ((𝐹‘𝑘)(+g‘𝐺)((invg‘𝐺)‘(𝐻‘𝑘)))) |
36 | 35 | mpteq2dva 5161 | . . . 4 ⊢ (𝜑 → (𝑘 ∈ 𝐴 ↦ ((𝐹‘𝑘) − (𝐻‘𝑘))) = (𝑘 ∈ 𝐴 ↦ ((𝐹‘𝑘)(+g‘𝐺)((invg‘𝐺)‘(𝐻‘𝑘))))) |
37 | 8 | feqmptd 6733 | . . . . 5 ⊢ (𝜑 → 𝐹 = (𝑘 ∈ 𝐴 ↦ (𝐹‘𝑘))) |
38 | 15 | feqmptd 6733 | . . . . 5 ⊢ (𝜑 → 𝐻 = (𝑘 ∈ 𝐴 ↦ (𝐻‘𝑘))) |
39 | 7, 31, 32, 37, 38 | offval2 7426 | . . . 4 ⊢ (𝜑 → (𝐹 ∘f − 𝐻) = (𝑘 ∈ 𝐴 ↦ ((𝐹‘𝑘) − (𝐻‘𝑘)))) |
40 | fvexd 6685 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → ((invg‘𝐺)‘(𝐻‘𝑘)) ∈ V) | |
41 | 14 | feqmptd 6733 | . . . . . 6 ⊢ (𝜑 → (invg‘𝐺) = (𝑥 ∈ 𝐵 ↦ ((invg‘𝐺)‘𝑥))) |
42 | fveq2 6670 | . . . . . 6 ⊢ (𝑥 = (𝐻‘𝑘) → ((invg‘𝐺)‘𝑥) = ((invg‘𝐺)‘(𝐻‘𝑘))) | |
43 | 32, 38, 41, 42 | fmptco 6891 | . . . . 5 ⊢ (𝜑 → ((invg‘𝐺) ∘ 𝐻) = (𝑘 ∈ 𝐴 ↦ ((invg‘𝐺)‘(𝐻‘𝑘)))) |
44 | 7, 31, 40, 37, 43 | offval2 7426 | . . . 4 ⊢ (𝜑 → (𝐹 ∘f (+g‘𝐺)((invg‘𝐺) ∘ 𝐻)) = (𝑘 ∈ 𝐴 ↦ ((𝐹‘𝑘)(+g‘𝐺)((invg‘𝐺)‘(𝐻‘𝑘))))) |
45 | 36, 39, 44 | 3eqtr4d 2866 | . . 3 ⊢ (𝜑 → (𝐹 ∘f − 𝐻) = (𝐹 ∘f (+g‘𝐺)((invg‘𝐺) ∘ 𝐻))) |
46 | 45 | oveq2d 7172 | . 2 ⊢ (𝜑 → (𝐺 Σg (𝐹 ∘f − 𝐻)) = (𝐺 Σg (𝐹 ∘f (+g‘𝐺)((invg‘𝐺) ∘ 𝐻)))) |
47 | 1, 2, 6, 7, 8, 18 | gsumcl 19035 | . . 3 ⊢ (𝜑 → (𝐺 Σg 𝐹) ∈ 𝐵) |
48 | 1, 2, 6, 7, 15, 23 | gsumcl 19035 | . . 3 ⊢ (𝜑 → (𝐺 Σg 𝐻) ∈ 𝐵) |
49 | 1, 3, 9, 33 | grpsubval 18149 | . . 3 ⊢ (((𝐺 Σg 𝐹) ∈ 𝐵 ∧ (𝐺 Σg 𝐻) ∈ 𝐵) → ((𝐺 Σg 𝐹) − (𝐺 Σg 𝐻)) = ((𝐺 Σg 𝐹)(+g‘𝐺)((invg‘𝐺)‘(𝐺 Σg 𝐻)))) |
50 | 47, 48, 49 | syl2anc 586 | . 2 ⊢ (𝜑 → ((𝐺 Σg 𝐹) − (𝐺 Σg 𝐻)) = ((𝐺 Σg 𝐹)(+g‘𝐺)((invg‘𝐺)‘(𝐺 Σg 𝐻)))) |
51 | 30, 46, 50 | 3eqtr4d 2866 | 1 ⊢ (𝜑 → (𝐺 Σg (𝐹 ∘f − 𝐻)) = ((𝐺 Σg 𝐹) − (𝐺 Σg 𝐻))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 = wceq 1537 ∈ wcel 2114 Vcvv 3494 class class class wbr 5066 ↦ cmpt 5146 ∘ ccom 5559 ⟶wf 6351 –1-1-onto→wf1o 6354 ‘cfv 6355 (class class class)co 7156 ∘f cof 7407 finSupp cfsupp 8833 Basecbs 16483 +gcplusg 16565 0gc0g 16713 Σg cgsu 16714 Grpcgrp 18103 invgcminusg 18104 -gcsg 18105 CMndccmn 18906 Abelcabl 18907 |
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 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-rep 5190 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-cnex 10593 ax-resscn 10594 ax-1cn 10595 ax-icn 10596 ax-addcl 10597 ax-addrcl 10598 ax-mulcl 10599 ax-mulrcl 10600 ax-mulcom 10601 ax-addass 10602 ax-mulass 10603 ax-distr 10604 ax-i2m1 10605 ax-1ne0 10606 ax-1rid 10607 ax-rnegex 10608 ax-rrecex 10609 ax-cnre 10610 ax-pre-lttri 10611 ax-pre-lttrn 10612 ax-pre-ltadd 10613 ax-pre-mulgt0 10614 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-pss 3954 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4839 df-int 4877 df-iun 4921 df-br 5067 df-opab 5129 df-mpt 5147 df-tr 5173 df-id 5460 df-eprel 5465 df-po 5474 df-so 5475 df-fr 5514 df-se 5515 df-we 5516 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-pred 6148 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-isom 6364 df-riota 7114 df-ov 7159 df-oprab 7160 df-mpo 7161 df-of 7409 df-om 7581 df-1st 7689 df-2nd 7690 df-supp 7831 df-wrecs 7947 df-recs 8008 df-rdg 8046 df-1o 8102 df-oadd 8106 df-er 8289 df-map 8408 df-en 8510 df-dom 8511 df-sdom 8512 df-fin 8513 df-fsupp 8834 df-oi 8974 df-card 9368 df-pnf 10677 df-mnf 10678 df-xr 10679 df-ltxr 10680 df-le 10681 df-sub 10872 df-neg 10873 df-nn 11639 df-2 11701 df-n0 11899 df-z 11983 df-uz 12245 df-fz 12894 df-fzo 13035 df-seq 13371 df-hash 13692 df-ndx 16486 df-slot 16487 df-base 16489 df-sets 16490 df-ress 16491 df-plusg 16578 df-0g 16715 df-gsum 16716 df-mgm 17852 df-sgrp 17901 df-mnd 17912 df-mhm 17956 df-submnd 17957 df-grp 18106 df-minusg 18107 df-sbg 18108 df-ghm 18356 df-cntz 18447 df-cmn 18908 df-abl 18909 |
This theorem is referenced by: gsummptfssub 19069 tsmsxplem2 22762 |
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