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 5819 | . . . . . 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 3893 | . . . . . . . . 9 ⊢ (𝜑 → 𝐻 ∈ (SubGrp‘𝐺)) |
7 | qusima.b | . . . . . . . . . 10 ⊢ 𝐵 = (Base‘𝐺) | |
8 | 7 | subgss 18347 | . . . . . . . . 9 ⊢ (𝐻 ∈ (SubGrp‘𝐺) → 𝐻 ⊆ 𝐵) |
9 | 6, 8 | syl 17 | . . . . . . . 8 ⊢ (𝜑 → 𝐻 ⊆ 𝐵) |
10 | 9 | resmptd 5880 | . . . . . . 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 18377 | . . . . . . . . . . 11 ⊢ (𝑁 ∈ (NrmSGrp‘𝐺) → 𝑁 ∈ (SubGrp‘𝐺)) | |
14 | 12, 13 | syl 17 | . . . . . . . . . 10 ⊢ (𝜑 → 𝑁 ∈ (SubGrp‘𝐺)) |
15 | 14 | adantr 484 | . . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐻) → 𝑁 ∈ (SubGrp‘𝐺)) |
16 | 9 | sselda 3892 | . . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐻) → 𝑥 ∈ 𝐵) |
17 | 7, 11, 15, 16 | quslsm 31114 | . . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐻) → [𝑥](𝐺 ~QG 𝑁) = ({𝑥} ⊕ 𝑁)) |
18 | 17 | mpteq2dva 5127 | . . . . . . 7 ⊢ (𝜑 → (𝑥 ∈ 𝐻 ↦ [𝑥](𝐺 ~QG 𝑁)) = (𝑥 ∈ 𝐻 ↦ ({𝑥} ⊕ 𝑁))) |
19 | 10, 18 | eqtrd 2793 | . . . . . 6 ⊢ (𝜑 → ((𝑥 ∈ 𝐵 ↦ [𝑥](𝐺 ~QG 𝑁)) ↾ 𝐻) = (𝑥 ∈ 𝐻 ↦ ({𝑥} ⊕ 𝑁))) |
20 | 3, 19 | syl5req 2806 | . . . . 5 ⊢ (𝜑 → (𝑥 ∈ 𝐻 ↦ ({𝑥} ⊕ 𝑁)) = (𝐹 ↾ 𝐻)) |
21 | 20 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ ℎ = 𝐻) → (𝑥 ∈ 𝐻 ↦ ({𝑥} ⊕ 𝑁)) = (𝐹 ↾ 𝐻)) |
22 | 21 | rneqd 5779 | . . 3 ⊢ ((𝜑 ∧ ℎ = 𝐻) → ran (𝑥 ∈ 𝐻 ↦ ({𝑥} ⊕ 𝑁)) = ran (𝐹 ↾ 𝐻)) |
23 | mpteq1 5120 | . . . . 5 ⊢ (ℎ = 𝐻 → (𝑥 ∈ ℎ ↦ ({𝑥} ⊕ 𝑁)) = (𝑥 ∈ 𝐻 ↦ ({𝑥} ⊕ 𝑁))) | |
24 | 23 | rneqd 5779 | . . . 4 ⊢ (ℎ = 𝐻 → ran (𝑥 ∈ ℎ ↦ ({𝑥} ⊕ 𝑁)) = ran (𝑥 ∈ 𝐻 ↦ ({𝑥} ⊕ 𝑁))) |
25 | 24 | adantl 485 | . . 3 ⊢ ((𝜑 ∧ ℎ = 𝐻) → ran (𝑥 ∈ ℎ ↦ ({𝑥} ⊕ 𝑁)) = ran (𝑥 ∈ 𝐻 ↦ ({𝑥} ⊕ 𝑁))) |
26 | df-ima 5537 | . . . 4 ⊢ (𝐹 “ 𝐻) = ran (𝐹 ↾ 𝐻) | |
27 | 26 | a1i 11 | . . 3 ⊢ ((𝜑 ∧ ℎ = 𝐻) → (𝐹 “ 𝐻) = ran (𝐹 ↾ 𝐻)) |
28 | 22, 25, 27 | 3eqtr4d 2803 | . 2 ⊢ ((𝜑 ∧ ℎ = 𝐻) → ran (𝑥 ∈ ℎ ↦ ({𝑥} ⊕ 𝑁)) = (𝐹 “ 𝐻)) |
29 | 7 | fvexi 6672 | . . . . 5 ⊢ 𝐵 ∈ V |
30 | 29 | mptex 6977 | . . . 4 ⊢ (𝑥 ∈ 𝐵 ↦ [𝑥](𝐺 ~QG 𝑁)) ∈ V |
31 | 2, 30 | eqeltri 2848 | . . 3 ⊢ 𝐹 ∈ V |
32 | imaexg 7625 | . . 3 ⊢ (𝐹 ∈ V → (𝐹 “ 𝐻) ∈ V) | |
33 | 31, 32 | mp1i 13 | . 2 ⊢ (𝜑 → (𝐹 “ 𝐻) ∈ V) |
34 | 1, 28, 5, 33 | fvmptd2 6767 | 1 ⊢ (𝜑 → (𝐸‘𝐻) = (𝐹 “ 𝐻)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 = wceq 1538 ∈ wcel 2111 Vcvv 3409 ⊆ wss 3858 {csn 4522 ↦ cmpt 5112 ran crn 5525 ↾ cres 5526 “ cima 5527 ‘cfv 6335 (class class class)co 7150 [cec 8297 Basecbs 16541 /s cqus 16836 SubGrpcsubg 18340 NrmSGrpcnsg 18341 ~QG cqg 18342 LSSumclsm 18826 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2729 ax-rep 5156 ax-sep 5169 ax-nul 5176 ax-pow 5234 ax-pr 5298 ax-un 7459 ax-cnex 10631 ax-resscn 10632 ax-1cn 10633 ax-icn 10634 ax-addcl 10635 ax-addrcl 10636 ax-mulcl 10637 ax-mulrcl 10638 ax-mulcom 10639 ax-addass 10640 ax-mulass 10641 ax-distr 10642 ax-i2m1 10643 ax-1ne0 10644 ax-1rid 10645 ax-rnegex 10646 ax-rrecex 10647 ax-cnre 10648 ax-pre-lttri 10649 ax-pre-lttrn 10650 ax-pre-ltadd 10651 ax-pre-mulgt0 10652 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3or 1085 df-3an 1086 df-tru 1541 df-fal 1551 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2557 df-eu 2588 df-clab 2736 df-cleq 2750 df-clel 2830 df-nfc 2901 df-ne 2952 df-nel 3056 df-ral 3075 df-rex 3076 df-reu 3077 df-rmo 3078 df-rab 3079 df-v 3411 df-sbc 3697 df-csb 3806 df-dif 3861 df-un 3863 df-in 3865 df-ss 3875 df-pss 3877 df-nul 4226 df-if 4421 df-pw 4496 df-sn 4523 df-pr 4525 df-tp 4527 df-op 4529 df-uni 4799 df-iun 4885 df-br 5033 df-opab 5095 df-mpt 5113 df-tr 5139 df-id 5430 df-eprel 5435 df-po 5443 df-so 5444 df-fr 5483 df-we 5485 df-xp 5530 df-rel 5531 df-cnv 5532 df-co 5533 df-dm 5534 df-rn 5535 df-res 5536 df-ima 5537 df-pred 6126 df-ord 6172 df-on 6173 df-lim 6174 df-suc 6175 df-iota 6294 df-fun 6337 df-fn 6338 df-f 6339 df-f1 6340 df-fo 6341 df-f1o 6342 df-fv 6343 df-riota 7108 df-ov 7153 df-oprab 7154 df-mpo 7155 df-om 7580 df-1st 7693 df-2nd 7694 df-tpos 7902 df-wrecs 7957 df-recs 8018 df-rdg 8056 df-er 8299 df-ec 8301 df-en 8528 df-dom 8529 df-sdom 8530 df-pnf 10715 df-mnf 10716 df-xr 10717 df-ltxr 10718 df-le 10719 df-sub 10910 df-neg 10911 df-nn 11675 df-2 11737 df-ndx 16544 df-slot 16545 df-base 16547 df-sets 16548 df-plusg 16636 df-0g 16773 df-mgm 17918 df-sgrp 17967 df-mnd 17978 df-grp 18172 df-minusg 18173 df-subg 18343 df-nsg 18344 df-eqg 18345 df-oppg 18541 df-lsm 18828 |
This theorem is referenced by: nsgmgc 31118 |
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