Mathbox for Thierry Arnoux |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > qusima | Structured version Visualization version GIF version |
Description: The image of a subgroup by the natural map from elements to their cosets. (Contributed by Thierry Arnoux, 27-Jul-2024.) |
Ref | Expression |
---|---|
qusima.b | ⊢ 𝐵 = (Base‘𝐺) |
qusima.q | ⊢ 𝑄 = (𝐺 /s (𝐺 ~QG 𝑁)) |
qusima.p | ⊢ ⊕ = (LSSum‘𝐺) |
qusima.e | ⊢ 𝐸 = (ℎ ∈ 𝑆 ↦ ran (𝑥 ∈ ℎ ↦ ({𝑥} ⊕ 𝑁))) |
qusima.f | ⊢ 𝐹 = (𝑥 ∈ 𝐵 ↦ [𝑥](𝐺 ~QG 𝑁)) |
qusima.n | ⊢ (𝜑 → 𝑁 ∈ (NrmSGrp‘𝐺)) |
qusima.h | ⊢ (𝜑 → 𝐻 ∈ 𝑆) |
qusima.s | ⊢ (𝜑 → 𝑆 ⊆ (SubGrp‘𝐺)) |
Ref | Expression |
---|---|
qusima | ⊢ (𝜑 → (𝐸‘𝐻) = (𝐹 “ 𝐻)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | qusima.e | . 2 ⊢ 𝐸 = (ℎ ∈ 𝑆 ↦ ran (𝑥 ∈ ℎ ↦ ({𝑥} ⊕ 𝑁))) | |
2 | qusima.f | . . . . . . 7 ⊢ 𝐹 = (𝑥 ∈ 𝐵 ↦ [𝑥](𝐺 ~QG 𝑁)) | |
3 | 2 | reseq1i 5876 | . . . . . 6 ⊢ (𝐹 ↾ 𝐻) = ((𝑥 ∈ 𝐵 ↦ [𝑥](𝐺 ~QG 𝑁)) ↾ 𝐻) |
4 | qusima.s | . . . . . . . . . 10 ⊢ (𝜑 → 𝑆 ⊆ (SubGrp‘𝐺)) | |
5 | qusima.h | . . . . . . . . . 10 ⊢ (𝜑 → 𝐻 ∈ 𝑆) | |
6 | 4, 5 | sseldd 3918 | . . . . . . . . 9 ⊢ (𝜑 → 𝐻 ∈ (SubGrp‘𝐺)) |
7 | qusima.b | . . . . . . . . . 10 ⊢ 𝐵 = (Base‘𝐺) | |
8 | 7 | subgss 18671 | . . . . . . . . 9 ⊢ (𝐻 ∈ (SubGrp‘𝐺) → 𝐻 ⊆ 𝐵) |
9 | 6, 8 | syl 17 | . . . . . . . 8 ⊢ (𝜑 → 𝐻 ⊆ 𝐵) |
10 | 9 | resmptd 5937 | . . . . . . 7 ⊢ (𝜑 → ((𝑥 ∈ 𝐵 ↦ [𝑥](𝐺 ~QG 𝑁)) ↾ 𝐻) = (𝑥 ∈ 𝐻 ↦ [𝑥](𝐺 ~QG 𝑁))) |
11 | qusima.p | . . . . . . . . 9 ⊢ ⊕ = (LSSum‘𝐺) | |
12 | qusima.n | . . . . . . . . . . 11 ⊢ (𝜑 → 𝑁 ∈ (NrmSGrp‘𝐺)) | |
13 | nsgsubg 18701 | . . . . . . . . . . 11 ⊢ (𝑁 ∈ (NrmSGrp‘𝐺) → 𝑁 ∈ (SubGrp‘𝐺)) | |
14 | 12, 13 | syl 17 | . . . . . . . . . 10 ⊢ (𝜑 → 𝑁 ∈ (SubGrp‘𝐺)) |
15 | 14 | adantr 480 | . . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐻) → 𝑁 ∈ (SubGrp‘𝐺)) |
16 | 9 | sselda 3917 | . . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐻) → 𝑥 ∈ 𝐵) |
17 | 7, 11, 15, 16 | quslsm 31495 | . . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐻) → [𝑥](𝐺 ~QG 𝑁) = ({𝑥} ⊕ 𝑁)) |
18 | 17 | mpteq2dva 5170 | . . . . . . 7 ⊢ (𝜑 → (𝑥 ∈ 𝐻 ↦ [𝑥](𝐺 ~QG 𝑁)) = (𝑥 ∈ 𝐻 ↦ ({𝑥} ⊕ 𝑁))) |
19 | 10, 18 | eqtrd 2778 | . . . . . 6 ⊢ (𝜑 → ((𝑥 ∈ 𝐵 ↦ [𝑥](𝐺 ~QG 𝑁)) ↾ 𝐻) = (𝑥 ∈ 𝐻 ↦ ({𝑥} ⊕ 𝑁))) |
20 | 3, 19 | eqtr2id 2792 | . . . . 5 ⊢ (𝜑 → (𝑥 ∈ 𝐻 ↦ ({𝑥} ⊕ 𝑁)) = (𝐹 ↾ 𝐻)) |
21 | 20 | adantr 480 | . . . 4 ⊢ ((𝜑 ∧ ℎ = 𝐻) → (𝑥 ∈ 𝐻 ↦ ({𝑥} ⊕ 𝑁)) = (𝐹 ↾ 𝐻)) |
22 | 21 | rneqd 5836 | . . 3 ⊢ ((𝜑 ∧ ℎ = 𝐻) → ran (𝑥 ∈ 𝐻 ↦ ({𝑥} ⊕ 𝑁)) = ran (𝐹 ↾ 𝐻)) |
23 | mpteq1 5163 | . . . . 5 ⊢ (ℎ = 𝐻 → (𝑥 ∈ ℎ ↦ ({𝑥} ⊕ 𝑁)) = (𝑥 ∈ 𝐻 ↦ ({𝑥} ⊕ 𝑁))) | |
24 | 23 | rneqd 5836 | . . . 4 ⊢ (ℎ = 𝐻 → ran (𝑥 ∈ ℎ ↦ ({𝑥} ⊕ 𝑁)) = ran (𝑥 ∈ 𝐻 ↦ ({𝑥} ⊕ 𝑁))) |
25 | 24 | adantl 481 | . . 3 ⊢ ((𝜑 ∧ ℎ = 𝐻) → ran (𝑥 ∈ ℎ ↦ ({𝑥} ⊕ 𝑁)) = ran (𝑥 ∈ 𝐻 ↦ ({𝑥} ⊕ 𝑁))) |
26 | df-ima 5593 | . . . 4 ⊢ (𝐹 “ 𝐻) = ran (𝐹 ↾ 𝐻) | |
27 | 26 | a1i 11 | . . 3 ⊢ ((𝜑 ∧ ℎ = 𝐻) → (𝐹 “ 𝐻) = ran (𝐹 ↾ 𝐻)) |
28 | 22, 25, 27 | 3eqtr4d 2788 | . 2 ⊢ ((𝜑 ∧ ℎ = 𝐻) → ran (𝑥 ∈ ℎ ↦ ({𝑥} ⊕ 𝑁)) = (𝐹 “ 𝐻)) |
29 | 7 | fvexi 6770 | . . . . 5 ⊢ 𝐵 ∈ V |
30 | 29 | mptex 7081 | . . . 4 ⊢ (𝑥 ∈ 𝐵 ↦ [𝑥](𝐺 ~QG 𝑁)) ∈ V |
31 | 2, 30 | eqeltri 2835 | . . 3 ⊢ 𝐹 ∈ V |
32 | imaexg 7736 | . . 3 ⊢ (𝐹 ∈ V → (𝐹 “ 𝐻) ∈ V) | |
33 | 31, 32 | mp1i 13 | . 2 ⊢ (𝜑 → (𝐹 “ 𝐻) ∈ V) |
34 | 1, 28, 5, 33 | fvmptd2 6865 | 1 ⊢ (𝜑 → (𝐸‘𝐻) = (𝐹 “ 𝐻)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 = wceq 1539 ∈ wcel 2108 Vcvv 3422 ⊆ wss 3883 {csn 4558 ↦ cmpt 5153 ran crn 5581 ↾ cres 5582 “ cima 5583 ‘cfv 6418 (class class class)co 7255 [cec 8454 Basecbs 16840 /s cqus 17133 SubGrpcsubg 18664 NrmSGrpcnsg 18665 ~QG cqg 18666 LSSumclsm 19154 |
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-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-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-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-tpos 8013 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-er 8456 df-ec 8458 df-en 8692 df-dom 8693 df-sdom 8694 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-2 11966 df-sets 16793 df-slot 16811 df-ndx 16823 df-base 16841 df-plusg 16901 df-0g 17069 df-mgm 18241 df-sgrp 18290 df-mnd 18301 df-grp 18495 df-minusg 18496 df-subg 18667 df-nsg 18668 df-eqg 18669 df-oppg 18865 df-lsm 19156 |
This theorem is referenced by: nsgmgc 31499 |
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