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Mirrors > Home > MPE Home > Th. List > gsummptshft | Structured version Visualization version GIF version |
Description: Index shift of a finite group sum over a finite set of sequential integers. (Contributed by AV, 24-Aug-2019.) |
Ref | Expression |
---|---|
gsummptshft.b | ⊢ 𝐵 = (Base‘𝐺) |
gsummptshft.z | ⊢ 0 = (0g‘𝐺) |
gsummptshft.g | ⊢ (𝜑 → 𝐺 ∈ CMnd) |
gsummptshft.k | ⊢ (𝜑 → 𝐾 ∈ ℤ) |
gsummptshft.m | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
gsummptshft.n | ⊢ (𝜑 → 𝑁 ∈ ℤ) |
gsummptshft.a | ⊢ ((𝜑 ∧ 𝑗 ∈ (𝑀...𝑁)) → 𝐴 ∈ 𝐵) |
gsummptshft.c | ⊢ (𝑗 = (𝑘 − 𝐾) → 𝐴 = 𝐶) |
Ref | Expression |
---|---|
gsummptshft | ⊢ (𝜑 → (𝐺 Σg (𝑗 ∈ (𝑀...𝑁) ↦ 𝐴)) = (𝐺 Σg (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ 𝐶))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | gsummptshft.b | . . 3 ⊢ 𝐵 = (Base‘𝐺) | |
2 | gsummptshft.z | . . 3 ⊢ 0 = (0g‘𝐺) | |
3 | gsummptshft.g | . . 3 ⊢ (𝜑 → 𝐺 ∈ CMnd) | |
4 | ovexd 6680 | . . 3 ⊢ (𝜑 → (𝑀...𝑁) ∈ V) | |
5 | gsummptshft.a | . . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ (𝑀...𝑁)) → 𝐴 ∈ 𝐵) | |
6 | eqid 2622 | . . . 4 ⊢ (𝑗 ∈ (𝑀...𝑁) ↦ 𝐴) = (𝑗 ∈ (𝑀...𝑁) ↦ 𝐴) | |
7 | 5, 6 | fmptd 6385 | . . 3 ⊢ (𝜑 → (𝑗 ∈ (𝑀...𝑁) ↦ 𝐴):(𝑀...𝑁)⟶𝐵) |
8 | fzfid 12772 | . . . 4 ⊢ (𝜑 → (𝑀...𝑁) ∈ Fin) | |
9 | fvex 6201 | . . . . . 6 ⊢ (0g‘𝐺) ∈ V | |
10 | 2, 9 | eqeltri 2697 | . . . . 5 ⊢ 0 ∈ V |
11 | 10 | a1i 11 | . . . 4 ⊢ (𝜑 → 0 ∈ V) |
12 | 6, 8, 5, 11 | fsuppmptdm 8286 | . . 3 ⊢ (𝜑 → (𝑗 ∈ (𝑀...𝑁) ↦ 𝐴) finSupp 0 ) |
13 | gsummptshft.k | . . . 4 ⊢ (𝜑 → 𝐾 ∈ ℤ) | |
14 | gsummptshft.m | . . . 4 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
15 | gsummptshft.n | . . . 4 ⊢ (𝜑 → 𝑁 ∈ ℤ) | |
16 | 13, 14, 15 | mptfzshft 14510 | . . 3 ⊢ (𝜑 → (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑘 − 𝐾)):((𝑀 + 𝐾)...(𝑁 + 𝐾))–1-1-onto→(𝑀...𝑁)) |
17 | 1, 2, 3, 4, 7, 12, 16 | gsumf1o 18317 | . 2 ⊢ (𝜑 → (𝐺 Σg (𝑗 ∈ (𝑀...𝑁) ↦ 𝐴)) = (𝐺 Σg ((𝑗 ∈ (𝑀...𝑁) ↦ 𝐴) ∘ (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑘 − 𝐾))))) |
18 | elfzelz 12342 | . . . . . . . 8 ⊢ (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) → 𝑘 ∈ ℤ) | |
19 | 18 | zcnd 11483 | . . . . . . 7 ⊢ (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) → 𝑘 ∈ ℂ) |
20 | 13 | zcnd 11483 | . . . . . . 7 ⊢ (𝜑 → 𝐾 ∈ ℂ) |
21 | npcan 10290 | . . . . . . 7 ⊢ ((𝑘 ∈ ℂ ∧ 𝐾 ∈ ℂ) → ((𝑘 − 𝐾) + 𝐾) = 𝑘) | |
22 | 19, 20, 21 | syl2anr 495 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → ((𝑘 − 𝐾) + 𝐾) = 𝑘) |
23 | simpr 477 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) | |
24 | 22, 23 | eqeltrd 2701 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → ((𝑘 − 𝐾) + 𝐾) ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) |
25 | 14, 15 | jca 554 | . . . . . . 7 ⊢ (𝜑 → (𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ)) |
26 | 25 | adantr 481 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → (𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ)) |
27 | 18 | adantl 482 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → 𝑘 ∈ ℤ) |
28 | 13 | adantr 481 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → 𝐾 ∈ ℤ) |
29 | 27, 28 | zsubcld 11487 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → (𝑘 − 𝐾) ∈ ℤ) |
30 | fzaddel 12375 | . . . . . 6 ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ ((𝑘 − 𝐾) ∈ ℤ ∧ 𝐾 ∈ ℤ)) → ((𝑘 − 𝐾) ∈ (𝑀...𝑁) ↔ ((𝑘 − 𝐾) + 𝐾) ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)))) | |
31 | 26, 29, 28, 30 | syl12anc 1324 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → ((𝑘 − 𝐾) ∈ (𝑀...𝑁) ↔ ((𝑘 − 𝐾) + 𝐾) ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)))) |
32 | 24, 31 | mpbird 247 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → (𝑘 − 𝐾) ∈ (𝑀...𝑁)) |
33 | eqidd 2623 | . . . 4 ⊢ (𝜑 → (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑘 − 𝐾)) = (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑘 − 𝐾))) | |
34 | eqidd 2623 | . . . 4 ⊢ (𝜑 → (𝑗 ∈ (𝑀...𝑁) ↦ 𝐴) = (𝑗 ∈ (𝑀...𝑁) ↦ 𝐴)) | |
35 | gsummptshft.c | . . . 4 ⊢ (𝑗 = (𝑘 − 𝐾) → 𝐴 = 𝐶) | |
36 | 32, 33, 34, 35 | fmptco 6396 | . . 3 ⊢ (𝜑 → ((𝑗 ∈ (𝑀...𝑁) ↦ 𝐴) ∘ (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑘 − 𝐾))) = (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ 𝐶)) |
37 | 36 | oveq2d 6666 | . 2 ⊢ (𝜑 → (𝐺 Σg ((𝑗 ∈ (𝑀...𝑁) ↦ 𝐴) ∘ (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑘 − 𝐾)))) = (𝐺 Σg (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ 𝐶))) |
38 | 17, 37 | eqtrd 2656 | 1 ⊢ (𝜑 → (𝐺 Σg (𝑗 ∈ (𝑀...𝑁) ↦ 𝐴)) = (𝐺 Σg (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ 𝐶))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 196 ∧ wa 384 = wceq 1483 ∈ wcel 1990 Vcvv 3200 ↦ cmpt 4729 ∘ ccom 5118 ‘cfv 5888 (class class class)co 6650 ℂcc 9934 + caddc 9939 − cmin 10266 ℤcz 11377 ...cfz 12326 Basecbs 15857 0gc0g 16100 Σg cgsu 16101 CMndccmn 18193 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-rep 4771 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 ax-cnex 9992 ax-resscn 9993 ax-1cn 9994 ax-icn 9995 ax-addcl 9996 ax-addrcl 9997 ax-mulcl 9998 ax-mulrcl 9999 ax-mulcom 10000 ax-addass 10001 ax-mulass 10002 ax-distr 10003 ax-i2m1 10004 ax-1ne0 10005 ax-1rid 10006 ax-rnegex 10007 ax-rrecex 10008 ax-cnre 10009 ax-pre-lttri 10010 ax-pre-lttrn 10011 ax-pre-ltadd 10012 ax-pre-mulgt0 10013 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3or 1038 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-nel 2898 df-ral 2917 df-rex 2918 df-reu 2919 df-rmo 2920 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-pss 3590 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-tp 4182 df-op 4184 df-uni 4437 df-int 4476 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-tr 4753 df-id 5024 df-eprel 5029 df-po 5035 df-so 5036 df-fr 5073 df-se 5074 df-we 5075 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-pred 5680 df-ord 5726 df-on 5727 df-lim 5728 df-suc 5729 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-isom 5897 df-riota 6611 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-om 7066 df-1st 7168 df-2nd 7169 df-supp 7296 df-wrecs 7407 df-recs 7468 df-rdg 7506 df-1o 7560 df-oadd 7564 df-er 7742 df-en 7956 df-dom 7957 df-sdom 7958 df-fin 7959 df-fsupp 8276 df-oi 8415 df-card 8765 df-pnf 10076 df-mnf 10077 df-xr 10078 df-ltxr 10079 df-le 10080 df-sub 10268 df-neg 10269 df-nn 11021 df-n0 11293 df-z 11378 df-uz 11688 df-fz 12327 df-fzo 12466 df-seq 12802 df-hash 13118 df-0g 16102 df-gsum 16103 df-mgm 17242 df-sgrp 17284 df-mnd 17295 df-cntz 17750 df-cmn 18195 |
This theorem is referenced by: srgbinomlem4 18543 cpmadugsumlemF 20681 |
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