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Mirrors > Home > MPE Home > Th. List > subgacs | Structured version Visualization version GIF version |
Description: Subgroups are an algebraic closure system. (Contributed by Stefan O'Rear, 4-Apr-2015.) (Revised by Mario Carneiro, 22-Aug-2015.) |
Ref | Expression |
---|---|
subgacs.b | ⊢ 𝐵 = (Base‘𝐺) |
Ref | Expression |
---|---|
subgacs | ⊢ (𝐺 ∈ Grp → (SubGrp‘𝐺) ∈ (ACS‘𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2622 | . . . . . 6 ⊢ (invg‘𝐺) = (invg‘𝐺) | |
2 | 1 | issubg3 17612 | . . . . 5 ⊢ (𝐺 ∈ Grp → (𝑠 ∈ (SubGrp‘𝐺) ↔ (𝑠 ∈ (SubMnd‘𝐺) ∧ ∀𝑥 ∈ 𝑠 ((invg‘𝐺)‘𝑥) ∈ 𝑠))) |
3 | subgacs.b | . . . . . . . . . 10 ⊢ 𝐵 = (Base‘𝐺) | |
4 | 3 | submss 17350 | . . . . . . . . 9 ⊢ (𝑠 ∈ (SubMnd‘𝐺) → 𝑠 ⊆ 𝐵) |
5 | 4 | adantl 482 | . . . . . . . 8 ⊢ ((𝐺 ∈ Grp ∧ 𝑠 ∈ (SubMnd‘𝐺)) → 𝑠 ⊆ 𝐵) |
6 | selpw 4165 | . . . . . . . 8 ⊢ (𝑠 ∈ 𝒫 𝐵 ↔ 𝑠 ⊆ 𝐵) | |
7 | 5, 6 | sylibr 224 | . . . . . . 7 ⊢ ((𝐺 ∈ Grp ∧ 𝑠 ∈ (SubMnd‘𝐺)) → 𝑠 ∈ 𝒫 𝐵) |
8 | eleq2 2690 | . . . . . . . . 9 ⊢ (𝑦 = 𝑠 → (((invg‘𝐺)‘𝑥) ∈ 𝑦 ↔ ((invg‘𝐺)‘𝑥) ∈ 𝑠)) | |
9 | 8 | raleqbi1dv 3146 | . . . . . . . 8 ⊢ (𝑦 = 𝑠 → (∀𝑥 ∈ 𝑦 ((invg‘𝐺)‘𝑥) ∈ 𝑦 ↔ ∀𝑥 ∈ 𝑠 ((invg‘𝐺)‘𝑥) ∈ 𝑠)) |
10 | 9 | elrab3 3364 | . . . . . . 7 ⊢ (𝑠 ∈ 𝒫 𝐵 → (𝑠 ∈ {𝑦 ∈ 𝒫 𝐵 ∣ ∀𝑥 ∈ 𝑦 ((invg‘𝐺)‘𝑥) ∈ 𝑦} ↔ ∀𝑥 ∈ 𝑠 ((invg‘𝐺)‘𝑥) ∈ 𝑠)) |
11 | 7, 10 | syl 17 | . . . . . 6 ⊢ ((𝐺 ∈ Grp ∧ 𝑠 ∈ (SubMnd‘𝐺)) → (𝑠 ∈ {𝑦 ∈ 𝒫 𝐵 ∣ ∀𝑥 ∈ 𝑦 ((invg‘𝐺)‘𝑥) ∈ 𝑦} ↔ ∀𝑥 ∈ 𝑠 ((invg‘𝐺)‘𝑥) ∈ 𝑠)) |
12 | 11 | pm5.32da 673 | . . . . 5 ⊢ (𝐺 ∈ Grp → ((𝑠 ∈ (SubMnd‘𝐺) ∧ 𝑠 ∈ {𝑦 ∈ 𝒫 𝐵 ∣ ∀𝑥 ∈ 𝑦 ((invg‘𝐺)‘𝑥) ∈ 𝑦}) ↔ (𝑠 ∈ (SubMnd‘𝐺) ∧ ∀𝑥 ∈ 𝑠 ((invg‘𝐺)‘𝑥) ∈ 𝑠))) |
13 | 2, 12 | bitr4d 271 | . . . 4 ⊢ (𝐺 ∈ Grp → (𝑠 ∈ (SubGrp‘𝐺) ↔ (𝑠 ∈ (SubMnd‘𝐺) ∧ 𝑠 ∈ {𝑦 ∈ 𝒫 𝐵 ∣ ∀𝑥 ∈ 𝑦 ((invg‘𝐺)‘𝑥) ∈ 𝑦}))) |
14 | elin 3796 | . . . 4 ⊢ (𝑠 ∈ ((SubMnd‘𝐺) ∩ {𝑦 ∈ 𝒫 𝐵 ∣ ∀𝑥 ∈ 𝑦 ((invg‘𝐺)‘𝑥) ∈ 𝑦}) ↔ (𝑠 ∈ (SubMnd‘𝐺) ∧ 𝑠 ∈ {𝑦 ∈ 𝒫 𝐵 ∣ ∀𝑥 ∈ 𝑦 ((invg‘𝐺)‘𝑥) ∈ 𝑦})) | |
15 | 13, 14 | syl6bbr 278 | . . 3 ⊢ (𝐺 ∈ Grp → (𝑠 ∈ (SubGrp‘𝐺) ↔ 𝑠 ∈ ((SubMnd‘𝐺) ∩ {𝑦 ∈ 𝒫 𝐵 ∣ ∀𝑥 ∈ 𝑦 ((invg‘𝐺)‘𝑥) ∈ 𝑦}))) |
16 | 15 | eqrdv 2620 | . 2 ⊢ (𝐺 ∈ Grp → (SubGrp‘𝐺) = ((SubMnd‘𝐺) ∩ {𝑦 ∈ 𝒫 𝐵 ∣ ∀𝑥 ∈ 𝑦 ((invg‘𝐺)‘𝑥) ∈ 𝑦})) |
17 | fvex 6201 | . . . . 5 ⊢ (Base‘𝐺) ∈ V | |
18 | 3, 17 | eqeltri 2697 | . . . 4 ⊢ 𝐵 ∈ V |
19 | mreacs 16319 | . . . 4 ⊢ (𝐵 ∈ V → (ACS‘𝐵) ∈ (Moore‘𝒫 𝐵)) | |
20 | 18, 19 | mp1i 13 | . . 3 ⊢ (𝐺 ∈ Grp → (ACS‘𝐵) ∈ (Moore‘𝒫 𝐵)) |
21 | grpmnd 17429 | . . . 4 ⊢ (𝐺 ∈ Grp → 𝐺 ∈ Mnd) | |
22 | 3 | submacs 17365 | . . . 4 ⊢ (𝐺 ∈ Mnd → (SubMnd‘𝐺) ∈ (ACS‘𝐵)) |
23 | 21, 22 | syl 17 | . . 3 ⊢ (𝐺 ∈ Grp → (SubMnd‘𝐺) ∈ (ACS‘𝐵)) |
24 | 3, 1 | grpinvcl 17467 | . . . . 5 ⊢ ((𝐺 ∈ Grp ∧ 𝑥 ∈ 𝐵) → ((invg‘𝐺)‘𝑥) ∈ 𝐵) |
25 | 24 | ralrimiva 2966 | . . . 4 ⊢ (𝐺 ∈ Grp → ∀𝑥 ∈ 𝐵 ((invg‘𝐺)‘𝑥) ∈ 𝐵) |
26 | acsfn1 16322 | . . . 4 ⊢ ((𝐵 ∈ V ∧ ∀𝑥 ∈ 𝐵 ((invg‘𝐺)‘𝑥) ∈ 𝐵) → {𝑦 ∈ 𝒫 𝐵 ∣ ∀𝑥 ∈ 𝑦 ((invg‘𝐺)‘𝑥) ∈ 𝑦} ∈ (ACS‘𝐵)) | |
27 | 18, 25, 26 | sylancr 695 | . . 3 ⊢ (𝐺 ∈ Grp → {𝑦 ∈ 𝒫 𝐵 ∣ ∀𝑥 ∈ 𝑦 ((invg‘𝐺)‘𝑥) ∈ 𝑦} ∈ (ACS‘𝐵)) |
28 | mreincl 16259 | . . 3 ⊢ (((ACS‘𝐵) ∈ (Moore‘𝒫 𝐵) ∧ (SubMnd‘𝐺) ∈ (ACS‘𝐵) ∧ {𝑦 ∈ 𝒫 𝐵 ∣ ∀𝑥 ∈ 𝑦 ((invg‘𝐺)‘𝑥) ∈ 𝑦} ∈ (ACS‘𝐵)) → ((SubMnd‘𝐺) ∩ {𝑦 ∈ 𝒫 𝐵 ∣ ∀𝑥 ∈ 𝑦 ((invg‘𝐺)‘𝑥) ∈ 𝑦}) ∈ (ACS‘𝐵)) | |
29 | 20, 23, 27, 28 | syl3anc 1326 | . 2 ⊢ (𝐺 ∈ Grp → ((SubMnd‘𝐺) ∩ {𝑦 ∈ 𝒫 𝐵 ∣ ∀𝑥 ∈ 𝑦 ((invg‘𝐺)‘𝑥) ∈ 𝑦}) ∈ (ACS‘𝐵)) |
30 | 16, 29 | eqeltrd 2701 | 1 ⊢ (𝐺 ∈ Grp → (SubGrp‘𝐺) ∈ (ACS‘𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 196 ∧ wa 384 = wceq 1483 ∈ wcel 1990 ∀wral 2912 {crab 2916 Vcvv 3200 ∩ cin 3573 ⊆ wss 3574 𝒫 cpw 4158 ‘cfv 5888 Basecbs 15857 Moorecmre 16242 ACScacs 16245 Mndcmnd 17294 SubMndcsubmnd 17334 Grpcgrp 17422 invgcminusg 17423 SubGrpcsubg 17588 |
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-iin 4523 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-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-riota 6611 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-om 7066 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-pnf 10076 df-mnf 10077 df-xr 10078 df-ltxr 10079 df-le 10080 df-sub 10268 df-neg 10269 df-nn 11021 df-2 11079 df-ndx 15860 df-slot 15861 df-base 15863 df-sets 15864 df-ress 15865 df-plusg 15954 df-0g 16102 df-mre 16246 df-mrc 16247 df-acs 16249 df-mgm 17242 df-sgrp 17284 df-mnd 17295 df-submnd 17336 df-grp 17425 df-minusg 17426 df-subg 17591 |
This theorem is referenced by: nsgacs 17630 cycsubg2 17631 cycsubg2cl 17632 odf1o1 17987 lsmmod 18088 dmdprdd 18398 dprdfeq0 18421 dprdspan 18426 dprdres 18427 dprdss 18428 dprdz 18429 subgdmdprd 18433 subgdprd 18434 dprdsn 18435 dprd2dlem1 18440 dprd2da 18441 dmdprdsplit2lem 18444 ablfac1b 18469 pgpfac1lem1 18473 pgpfac1lem2 18474 pgpfac1lem3a 18475 pgpfac1lem3 18476 pgpfac1lem4 18477 pgpfac1lem5 18478 pgpfaclem1 18480 pgpfaclem2 18481 lssacs 18967 subrgacs 37770 proot1mul 37777 proot1hash 37778 |
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