Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > cycsubgcyg | Structured version Visualization version GIF version |
Description: The cyclic subgroup generated by 𝐴 is a cyclic group. (Contributed by Mario Carneiro, 24-Apr-2016.) |
Ref | Expression |
---|---|
cycsubgcyg.x | ⊢ 𝑋 = (Base‘𝐺) |
cycsubgcyg.t | ⊢ · = (.g‘𝐺) |
cycsubgcyg.s | ⊢ 𝑆 = ran (𝑥 ∈ ℤ ↦ (𝑥 · 𝐴)) |
Ref | Expression |
---|---|
cycsubgcyg | ⊢ ((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) → (𝐺 ↾s 𝑆) ∈ CycGrp) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2738 | . 2 ⊢ (Base‘(𝐺 ↾s 𝑆)) = (Base‘(𝐺 ↾s 𝑆)) | |
2 | eqid 2738 | . 2 ⊢ (.g‘(𝐺 ↾s 𝑆)) = (.g‘(𝐺 ↾s 𝑆)) | |
3 | cycsubgcyg.s | . . . 4 ⊢ 𝑆 = ran (𝑥 ∈ ℤ ↦ (𝑥 · 𝐴)) | |
4 | cycsubgcyg.x | . . . . . 6 ⊢ 𝑋 = (Base‘𝐺) | |
5 | cycsubgcyg.t | . . . . . 6 ⊢ · = (.g‘𝐺) | |
6 | eqid 2738 | . . . . . 6 ⊢ (𝑥 ∈ ℤ ↦ (𝑥 · 𝐴)) = (𝑥 ∈ ℤ ↦ (𝑥 · 𝐴)) | |
7 | 4, 5, 6 | cycsubgcl 18825 | . . . . 5 ⊢ ((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) → (ran (𝑥 ∈ ℤ ↦ (𝑥 · 𝐴)) ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ ran (𝑥 ∈ ℤ ↦ (𝑥 · 𝐴)))) |
8 | 7 | simpld 495 | . . . 4 ⊢ ((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) → ran (𝑥 ∈ ℤ ↦ (𝑥 · 𝐴)) ∈ (SubGrp‘𝐺)) |
9 | 3, 8 | eqeltrid 2843 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) → 𝑆 ∈ (SubGrp‘𝐺)) |
10 | eqid 2738 | . . . 4 ⊢ (𝐺 ↾s 𝑆) = (𝐺 ↾s 𝑆) | |
11 | 10 | subggrp 18758 | . . 3 ⊢ (𝑆 ∈ (SubGrp‘𝐺) → (𝐺 ↾s 𝑆) ∈ Grp) |
12 | 9, 11 | syl 17 | . 2 ⊢ ((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) → (𝐺 ↾s 𝑆) ∈ Grp) |
13 | 7 | simprd 496 | . . . 4 ⊢ ((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) → 𝐴 ∈ ran (𝑥 ∈ ℤ ↦ (𝑥 · 𝐴))) |
14 | 13, 3 | eleqtrrdi 2850 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) → 𝐴 ∈ 𝑆) |
15 | 10 | subgbas 18759 | . . . 4 ⊢ (𝑆 ∈ (SubGrp‘𝐺) → 𝑆 = (Base‘(𝐺 ↾s 𝑆))) |
16 | 9, 15 | syl 17 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) → 𝑆 = (Base‘(𝐺 ↾s 𝑆))) |
17 | 14, 16 | eleqtrd 2841 | . 2 ⊢ ((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) → 𝐴 ∈ (Base‘(𝐺 ↾s 𝑆))) |
18 | 16 | eleq2d 2824 | . . . 4 ⊢ ((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) → (𝑦 ∈ 𝑆 ↔ 𝑦 ∈ (Base‘(𝐺 ↾s 𝑆)))) |
19 | 18 | biimpar 478 | . . 3 ⊢ (((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) ∧ 𝑦 ∈ (Base‘(𝐺 ↾s 𝑆))) → 𝑦 ∈ 𝑆) |
20 | simpr 485 | . . . . . 6 ⊢ (((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) ∧ 𝑦 ∈ 𝑆) → 𝑦 ∈ 𝑆) | |
21 | 20, 3 | eleqtrdi 2849 | . . . . 5 ⊢ (((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) ∧ 𝑦 ∈ 𝑆) → 𝑦 ∈ ran (𝑥 ∈ ℤ ↦ (𝑥 · 𝐴))) |
22 | oveq1 7282 | . . . . . . 7 ⊢ (𝑥 = 𝑛 → (𝑥 · 𝐴) = (𝑛 · 𝐴)) | |
23 | 22 | cbvmptv 5187 | . . . . . 6 ⊢ (𝑥 ∈ ℤ ↦ (𝑥 · 𝐴)) = (𝑛 ∈ ℤ ↦ (𝑛 · 𝐴)) |
24 | ovex 7308 | . . . . . 6 ⊢ (𝑛 · 𝐴) ∈ V | |
25 | 23, 24 | elrnmpti 5869 | . . . . 5 ⊢ (𝑦 ∈ ran (𝑥 ∈ ℤ ↦ (𝑥 · 𝐴)) ↔ ∃𝑛 ∈ ℤ 𝑦 = (𝑛 · 𝐴)) |
26 | 21, 25 | sylib 217 | . . . 4 ⊢ (((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) ∧ 𝑦 ∈ 𝑆) → ∃𝑛 ∈ ℤ 𝑦 = (𝑛 · 𝐴)) |
27 | 9 | ad2antrr 723 | . . . . . . 7 ⊢ ((((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) ∧ 𝑦 ∈ 𝑆) ∧ 𝑛 ∈ ℤ) → 𝑆 ∈ (SubGrp‘𝐺)) |
28 | simpr 485 | . . . . . . 7 ⊢ ((((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) ∧ 𝑦 ∈ 𝑆) ∧ 𝑛 ∈ ℤ) → 𝑛 ∈ ℤ) | |
29 | 14 | ad2antrr 723 | . . . . . . 7 ⊢ ((((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) ∧ 𝑦 ∈ 𝑆) ∧ 𝑛 ∈ ℤ) → 𝐴 ∈ 𝑆) |
30 | 5, 10, 2 | subgmulg 18769 | . . . . . . 7 ⊢ ((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝑛 ∈ ℤ ∧ 𝐴 ∈ 𝑆) → (𝑛 · 𝐴) = (𝑛(.g‘(𝐺 ↾s 𝑆))𝐴)) |
31 | 27, 28, 29, 30 | syl3anc 1370 | . . . . . 6 ⊢ ((((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) ∧ 𝑦 ∈ 𝑆) ∧ 𝑛 ∈ ℤ) → (𝑛 · 𝐴) = (𝑛(.g‘(𝐺 ↾s 𝑆))𝐴)) |
32 | 31 | eqeq2d 2749 | . . . . 5 ⊢ ((((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) ∧ 𝑦 ∈ 𝑆) ∧ 𝑛 ∈ ℤ) → (𝑦 = (𝑛 · 𝐴) ↔ 𝑦 = (𝑛(.g‘(𝐺 ↾s 𝑆))𝐴))) |
33 | 32 | rexbidva 3225 | . . . 4 ⊢ (((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) ∧ 𝑦 ∈ 𝑆) → (∃𝑛 ∈ ℤ 𝑦 = (𝑛 · 𝐴) ↔ ∃𝑛 ∈ ℤ 𝑦 = (𝑛(.g‘(𝐺 ↾s 𝑆))𝐴))) |
34 | 26, 33 | mpbid 231 | . . 3 ⊢ (((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) ∧ 𝑦 ∈ 𝑆) → ∃𝑛 ∈ ℤ 𝑦 = (𝑛(.g‘(𝐺 ↾s 𝑆))𝐴)) |
35 | 19, 34 | syldan 591 | . 2 ⊢ (((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) ∧ 𝑦 ∈ (Base‘(𝐺 ↾s 𝑆))) → ∃𝑛 ∈ ℤ 𝑦 = (𝑛(.g‘(𝐺 ↾s 𝑆))𝐴)) |
36 | 1, 2, 12, 17, 35 | iscygd 19487 | 1 ⊢ ((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋) → (𝐺 ↾s 𝑆) ∈ CycGrp) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1539 ∈ wcel 2106 ∃wrex 3065 ↦ cmpt 5157 ran crn 5590 ‘cfv 6433 (class class class)co 7275 ℤcz 12319 Basecbs 16912 ↾s cress 16941 Grpcgrp 18577 .gcmg 18700 SubGrpcsubg 18749 CycGrpccyg 19477 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-1st 7831 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-2 12036 df-n0 12234 df-z 12320 df-uz 12583 df-fz 13240 df-seq 13722 df-sets 16865 df-slot 16883 df-ndx 16895 df-base 16913 df-ress 16942 df-plusg 16975 df-0g 17152 df-mgm 18326 df-sgrp 18375 df-mnd 18386 df-grp 18580 df-minusg 18581 df-mulg 18701 df-subg 18752 df-cyg 19478 |
This theorem is referenced by: cycsubgcyg2 19503 |
Copyright terms: Public domain | W3C validator |