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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 7290 | . . 3 ⊢ (𝜑 → (𝑀...𝑁) ∈ V) | |
5 | gsummptshft.a | . . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ (𝑀...𝑁)) → 𝐴 ∈ 𝐵) | |
6 | 5 | fmpttd 6971 | . . 3 ⊢ (𝜑 → (𝑗 ∈ (𝑀...𝑁) ↦ 𝐴):(𝑀...𝑁)⟶𝐵) |
7 | eqid 2738 | . . . 4 ⊢ (𝑗 ∈ (𝑀...𝑁) ↦ 𝐴) = (𝑗 ∈ (𝑀...𝑁) ↦ 𝐴) | |
8 | fzfid 13621 | . . . 4 ⊢ (𝜑 → (𝑀...𝑁) ∈ Fin) | |
9 | 2 | fvexi 6770 | . . . . 5 ⊢ 0 ∈ V |
10 | 9 | a1i 11 | . . . 4 ⊢ (𝜑 → 0 ∈ V) |
11 | 7, 8, 5, 10 | fsuppmptdm 9069 | . . 3 ⊢ (𝜑 → (𝑗 ∈ (𝑀...𝑁) ↦ 𝐴) finSupp 0 ) |
12 | gsummptshft.k | . . . 4 ⊢ (𝜑 → 𝐾 ∈ ℤ) | |
13 | gsummptshft.m | . . . 4 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
14 | gsummptshft.n | . . . 4 ⊢ (𝜑 → 𝑁 ∈ ℤ) | |
15 | 12, 13, 14 | mptfzshft 15418 | . . 3 ⊢ (𝜑 → (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑘 − 𝐾)):((𝑀 + 𝐾)...(𝑁 + 𝐾))–1-1-onto→(𝑀...𝑁)) |
16 | 1, 2, 3, 4, 6, 11, 15 | gsumf1o 19432 | . 2 ⊢ (𝜑 → (𝐺 Σg (𝑗 ∈ (𝑀...𝑁) ↦ 𝐴)) = (𝐺 Σg ((𝑗 ∈ (𝑀...𝑁) ↦ 𝐴) ∘ (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑘 − 𝐾))))) |
17 | elfzelz 13185 | . . . . . . . 8 ⊢ (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) → 𝑘 ∈ ℤ) | |
18 | 17 | zcnd 12356 | . . . . . . 7 ⊢ (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) → 𝑘 ∈ ℂ) |
19 | 12 | zcnd 12356 | . . . . . . 7 ⊢ (𝜑 → 𝐾 ∈ ℂ) |
20 | npcan 11160 | . . . . . . 7 ⊢ ((𝑘 ∈ ℂ ∧ 𝐾 ∈ ℂ) → ((𝑘 − 𝐾) + 𝐾) = 𝑘) | |
21 | 18, 19, 20 | syl2anr 596 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → ((𝑘 − 𝐾) + 𝐾) = 𝑘) |
22 | simpr 484 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) | |
23 | 21, 22 | eqeltrd 2839 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → ((𝑘 − 𝐾) + 𝐾) ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) |
24 | 13, 14 | jca 511 | . . . . . . 7 ⊢ (𝜑 → (𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ)) |
25 | 24 | adantr 480 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → (𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ)) |
26 | 17 | adantl 481 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → 𝑘 ∈ ℤ) |
27 | 12 | adantr 480 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → 𝐾 ∈ ℤ) |
28 | 26, 27 | zsubcld 12360 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → (𝑘 − 𝐾) ∈ ℤ) |
29 | fzaddel 13219 | . . . . . 6 ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ ((𝑘 − 𝐾) ∈ ℤ ∧ 𝐾 ∈ ℤ)) → ((𝑘 − 𝐾) ∈ (𝑀...𝑁) ↔ ((𝑘 − 𝐾) + 𝐾) ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)))) | |
30 | 25, 28, 27, 29 | syl12anc 833 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → ((𝑘 − 𝐾) ∈ (𝑀...𝑁) ↔ ((𝑘 − 𝐾) + 𝐾) ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)))) |
31 | 23, 30 | mpbird 256 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → (𝑘 − 𝐾) ∈ (𝑀...𝑁)) |
32 | eqidd 2739 | . . . 4 ⊢ (𝜑 → (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑘 − 𝐾)) = (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑘 − 𝐾))) | |
33 | eqidd 2739 | . . . 4 ⊢ (𝜑 → (𝑗 ∈ (𝑀...𝑁) ↦ 𝐴) = (𝑗 ∈ (𝑀...𝑁) ↦ 𝐴)) | |
34 | gsummptshft.c | . . . 4 ⊢ (𝑗 = (𝑘 − 𝐾) → 𝐴 = 𝐶) | |
35 | 31, 32, 33, 34 | fmptco 6983 | . . 3 ⊢ (𝜑 → ((𝑗 ∈ (𝑀...𝑁) ↦ 𝐴) ∘ (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑘 − 𝐾))) = (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ 𝐶)) |
36 | 35 | oveq2d 7271 | . 2 ⊢ (𝜑 → (𝐺 Σg ((𝑗 ∈ (𝑀...𝑁) ↦ 𝐴) ∘ (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑘 − 𝐾)))) = (𝐺 Σg (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ 𝐶))) |
37 | 16, 36 | eqtrd 2778 | 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 205 ∧ wa 395 = wceq 1539 ∈ wcel 2108 Vcvv 3422 ↦ cmpt 5153 ∘ ccom 5584 ‘cfv 6418 (class class class)co 7255 ℂcc 10800 + caddc 10805 − cmin 11135 ℤcz 12249 ...cfz 13168 Basecbs 16840 0gc0g 17067 Σg cgsu 17068 CMndccmn 19301 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-int 4877 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-se 5536 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-isom 6427 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-supp 7949 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-fsupp 9059 df-oi 9199 df-card 9628 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-nn 11904 df-n0 12164 df-z 12250 df-uz 12512 df-fz 13169 df-fzo 13312 df-seq 13650 df-hash 13973 df-0g 17069 df-gsum 17070 df-mgm 18241 df-sgrp 18290 df-mnd 18301 df-cntz 18838 df-cmn 19303 |
This theorem is referenced by: srgbinomlem4 19694 cpmadugsumlemF 21933 |
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