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Mirrors > Home > MPE Home > Th. List > sylow3 | Structured version Visualization version GIF version |
Description: Sylow's third theorem. The number of Sylow subgroups is a divisor of ∣ 𝐺 ∣ / 𝑑, where 𝑑 is the common order of a Sylow subgroup, and is equivalent to 1 mod 𝑃. This is part of Metamath 100 proof #72. (Contributed by Mario Carneiro, 19-Jan-2015.) |
Ref | Expression |
---|---|
sylow3.x | ⊢ 𝑋 = (Base‘𝐺) |
sylow3.g | ⊢ (𝜑 → 𝐺 ∈ Grp) |
sylow3.xf | ⊢ (𝜑 → 𝑋 ∈ Fin) |
sylow3.p | ⊢ (𝜑 → 𝑃 ∈ ℙ) |
sylow3.n | ⊢ 𝑁 = (#‘(𝑃 pSyl 𝐺)) |
Ref | Expression |
---|---|
sylow3 | ⊢ (𝜑 → (𝑁 ∥ ((#‘𝑋) / (𝑃↑(𝑃 pCnt (#‘𝑋)))) ∧ (𝑁 mod 𝑃) = 1)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sylow3.g | . . . 4 ⊢ (𝜑 → 𝐺 ∈ Grp) | |
2 | sylow3.xf | . . . 4 ⊢ (𝜑 → 𝑋 ∈ Fin) | |
3 | sylow3.p | . . . 4 ⊢ (𝜑 → 𝑃 ∈ ℙ) | |
4 | sylow3.x | . . . . 5 ⊢ 𝑋 = (Base‘𝐺) | |
5 | 4 | slwn0 18030 | . . . 4 ⊢ ((𝐺 ∈ Grp ∧ 𝑋 ∈ Fin ∧ 𝑃 ∈ ℙ) → (𝑃 pSyl 𝐺) ≠ ∅) |
6 | 1, 2, 3, 5 | syl3anc 1326 | . . 3 ⊢ (𝜑 → (𝑃 pSyl 𝐺) ≠ ∅) |
7 | n0 3931 | . . 3 ⊢ ((𝑃 pSyl 𝐺) ≠ ∅ ↔ ∃𝑘 𝑘 ∈ (𝑃 pSyl 𝐺)) | |
8 | 6, 7 | sylib 208 | . 2 ⊢ (𝜑 → ∃𝑘 𝑘 ∈ (𝑃 pSyl 𝐺)) |
9 | sylow3.n | . . . 4 ⊢ 𝑁 = (#‘(𝑃 pSyl 𝐺)) | |
10 | 1 | adantr 481 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → 𝐺 ∈ Grp) |
11 | 2 | adantr 481 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → 𝑋 ∈ Fin) |
12 | 3 | adantr 481 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → 𝑃 ∈ ℙ) |
13 | eqid 2622 | . . . . 5 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
14 | eqid 2622 | . . . . 5 ⊢ (-g‘𝐺) = (-g‘𝐺) | |
15 | oveq2 6658 | . . . . . . . . . 10 ⊢ (𝑐 = 𝑧 → (𝑎(+g‘𝐺)𝑐) = (𝑎(+g‘𝐺)𝑧)) | |
16 | 15 | oveq1d 6665 | . . . . . . . . 9 ⊢ (𝑐 = 𝑧 → ((𝑎(+g‘𝐺)𝑐)(-g‘𝐺)𝑎) = ((𝑎(+g‘𝐺)𝑧)(-g‘𝐺)𝑎)) |
17 | 16 | cbvmptv 4750 | . . . . . . . 8 ⊢ (𝑐 ∈ 𝑏 ↦ ((𝑎(+g‘𝐺)𝑐)(-g‘𝐺)𝑎)) = (𝑧 ∈ 𝑏 ↦ ((𝑎(+g‘𝐺)𝑧)(-g‘𝐺)𝑎)) |
18 | oveq1 6657 | . . . . . . . . . 10 ⊢ (𝑎 = 𝑥 → (𝑎(+g‘𝐺)𝑧) = (𝑥(+g‘𝐺)𝑧)) | |
19 | id 22 | . . . . . . . . . 10 ⊢ (𝑎 = 𝑥 → 𝑎 = 𝑥) | |
20 | 18, 19 | oveq12d 6668 | . . . . . . . . 9 ⊢ (𝑎 = 𝑥 → ((𝑎(+g‘𝐺)𝑧)(-g‘𝐺)𝑎) = ((𝑥(+g‘𝐺)𝑧)(-g‘𝐺)𝑥)) |
21 | 20 | mpteq2dv 4745 | . . . . . . . 8 ⊢ (𝑎 = 𝑥 → (𝑧 ∈ 𝑏 ↦ ((𝑎(+g‘𝐺)𝑧)(-g‘𝐺)𝑎)) = (𝑧 ∈ 𝑏 ↦ ((𝑥(+g‘𝐺)𝑧)(-g‘𝐺)𝑥))) |
22 | 17, 21 | syl5eq 2668 | . . . . . . 7 ⊢ (𝑎 = 𝑥 → (𝑐 ∈ 𝑏 ↦ ((𝑎(+g‘𝐺)𝑐)(-g‘𝐺)𝑎)) = (𝑧 ∈ 𝑏 ↦ ((𝑥(+g‘𝐺)𝑧)(-g‘𝐺)𝑥))) |
23 | 22 | rneqd 5353 | . . . . . 6 ⊢ (𝑎 = 𝑥 → ran (𝑐 ∈ 𝑏 ↦ ((𝑎(+g‘𝐺)𝑐)(-g‘𝐺)𝑎)) = ran (𝑧 ∈ 𝑏 ↦ ((𝑥(+g‘𝐺)𝑧)(-g‘𝐺)𝑥))) |
24 | mpteq1 4737 | . . . . . . 7 ⊢ (𝑏 = 𝑦 → (𝑧 ∈ 𝑏 ↦ ((𝑥(+g‘𝐺)𝑧)(-g‘𝐺)𝑥)) = (𝑧 ∈ 𝑦 ↦ ((𝑥(+g‘𝐺)𝑧)(-g‘𝐺)𝑥))) | |
25 | 24 | rneqd 5353 | . . . . . 6 ⊢ (𝑏 = 𝑦 → ran (𝑧 ∈ 𝑏 ↦ ((𝑥(+g‘𝐺)𝑧)(-g‘𝐺)𝑥)) = ran (𝑧 ∈ 𝑦 ↦ ((𝑥(+g‘𝐺)𝑧)(-g‘𝐺)𝑥))) |
26 | 23, 25 | cbvmpt2v 6735 | . . . . 5 ⊢ (𝑎 ∈ 𝑋, 𝑏 ∈ (𝑃 pSyl 𝐺) ↦ ran (𝑐 ∈ 𝑏 ↦ ((𝑎(+g‘𝐺)𝑐)(-g‘𝐺)𝑎))) = (𝑥 ∈ 𝑋, 𝑦 ∈ (𝑃 pSyl 𝐺) ↦ ran (𝑧 ∈ 𝑦 ↦ ((𝑥(+g‘𝐺)𝑧)(-g‘𝐺)𝑥))) |
27 | simpr 477 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → 𝑘 ∈ (𝑃 pSyl 𝐺)) | |
28 | eqid 2622 | . . . . 5 ⊢ {𝑢 ∈ 𝑋 ∣ (𝑢(𝑎 ∈ 𝑋, 𝑏 ∈ (𝑃 pSyl 𝐺) ↦ ran (𝑐 ∈ 𝑏 ↦ ((𝑎(+g‘𝐺)𝑐)(-g‘𝐺)𝑎)))𝑘) = 𝑘} = {𝑢 ∈ 𝑋 ∣ (𝑢(𝑎 ∈ 𝑋, 𝑏 ∈ (𝑃 pSyl 𝐺) ↦ ran (𝑐 ∈ 𝑏 ↦ ((𝑎(+g‘𝐺)𝑐)(-g‘𝐺)𝑎)))𝑘) = 𝑘} | |
29 | eqid 2622 | . . . . 5 ⊢ {𝑥 ∈ 𝑋 ∣ ∀𝑦 ∈ 𝑋 ((𝑥(+g‘𝐺)𝑦) ∈ 𝑘 ↔ (𝑦(+g‘𝐺)𝑥) ∈ 𝑘)} = {𝑥 ∈ 𝑋 ∣ ∀𝑦 ∈ 𝑋 ((𝑥(+g‘𝐺)𝑦) ∈ 𝑘 ↔ (𝑦(+g‘𝐺)𝑥) ∈ 𝑘)} | |
30 | 4, 10, 11, 12, 13, 14, 26, 27, 28, 29 | sylow3lem4 18045 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → (#‘(𝑃 pSyl 𝐺)) ∥ ((#‘𝑋) / (𝑃↑(𝑃 pCnt (#‘𝑋))))) |
31 | 9, 30 | syl5eqbr 4688 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → 𝑁 ∥ ((#‘𝑋) / (𝑃↑(𝑃 pCnt (#‘𝑋))))) |
32 | 9 | oveq1i 6660 | . . . 4 ⊢ (𝑁 mod 𝑃) = ((#‘(𝑃 pSyl 𝐺)) mod 𝑃) |
33 | 23, 25 | cbvmpt2v 6735 | . . . . 5 ⊢ (𝑎 ∈ 𝑘, 𝑏 ∈ (𝑃 pSyl 𝐺) ↦ ran (𝑐 ∈ 𝑏 ↦ ((𝑎(+g‘𝐺)𝑐)(-g‘𝐺)𝑎))) = (𝑥 ∈ 𝑘, 𝑦 ∈ (𝑃 pSyl 𝐺) ↦ ran (𝑧 ∈ 𝑦 ↦ ((𝑥(+g‘𝐺)𝑧)(-g‘𝐺)𝑥))) |
34 | eqid 2622 | . . . . 5 ⊢ {𝑥 ∈ 𝑋 ∣ ∀𝑦 ∈ 𝑋 ((𝑥(+g‘𝐺)𝑦) ∈ 𝑠 ↔ (𝑦(+g‘𝐺)𝑥) ∈ 𝑠)} = {𝑥 ∈ 𝑋 ∣ ∀𝑦 ∈ 𝑋 ((𝑥(+g‘𝐺)𝑦) ∈ 𝑠 ↔ (𝑦(+g‘𝐺)𝑥) ∈ 𝑠)} | |
35 | 4, 10, 11, 12, 13, 14, 27, 33, 34 | sylow3lem6 18047 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → ((#‘(𝑃 pSyl 𝐺)) mod 𝑃) = 1) |
36 | 32, 35 | syl5eq 2668 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → (𝑁 mod 𝑃) = 1) |
37 | 31, 36 | jca 554 | . 2 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → (𝑁 ∥ ((#‘𝑋) / (𝑃↑(𝑃 pCnt (#‘𝑋)))) ∧ (𝑁 mod 𝑃) = 1)) |
38 | 8, 37 | exlimddv 1863 | 1 ⊢ (𝜑 → (𝑁 ∥ ((#‘𝑋) / (𝑃↑(𝑃 pCnt (#‘𝑋)))) ∧ (𝑁 mod 𝑃) = 1)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 196 ∧ wa 384 = wceq 1483 ∃wex 1704 ∈ wcel 1990 ≠ wne 2794 ∀wral 2912 {crab 2916 ∅c0 3915 class class class wbr 4653 ↦ cmpt 4729 ran crn 5115 ‘cfv 5888 (class class class)co 6650 ↦ cmpt2 6652 Fincfn 7955 1c1 9937 / cdiv 10684 mod cmo 12668 ↑cexp 12860 #chash 13117 ∥ cdvds 14983 ℙcprime 15385 pCnt cpc 15541 Basecbs 15857 +gcplusg 15941 Grpcgrp 17422 -gcsg 17424 pSyl cslw 17947 |
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-inf2 8538 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 ax-pre-sup 10014 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3or 1038 df-3an 1039 df-tru 1486 df-fal 1489 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-disj 4621 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-se 5074 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-isom 5897 df-riota 6611 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-om 7066 df-1st 7168 df-2nd 7169 df-wrecs 7407 df-recs 7468 df-rdg 7506 df-1o 7560 df-2o 7561 df-oadd 7564 df-omul 7565 df-er 7742 df-ec 7744 df-qs 7748 df-map 7859 df-en 7956 df-dom 7957 df-sdom 7958 df-fin 7959 df-sup 8348 df-inf 8349 df-oi 8415 df-card 8765 df-acn 8768 df-cda 8990 df-pnf 10076 df-mnf 10077 df-xr 10078 df-ltxr 10079 df-le 10080 df-sub 10268 df-neg 10269 df-div 10685 df-nn 11021 df-2 11079 df-3 11080 df-n0 11293 df-xnn0 11364 df-z 11378 df-uz 11688 df-q 11789 df-rp 11833 df-fz 12327 df-fzo 12466 df-fl 12593 df-mod 12669 df-seq 12802 df-exp 12861 df-fac 13061 df-bc 13090 df-hash 13118 df-cj 13839 df-re 13840 df-im 13841 df-sqrt 13975 df-abs 13976 df-clim 14219 df-sum 14417 df-dvds 14984 df-gcd 15217 df-prm 15386 df-pc 15542 df-ndx 15860 df-slot 15861 df-base 15863 df-sets 15864 df-ress 15865 df-plusg 15954 df-0g 16102 df-mgm 17242 df-sgrp 17284 df-mnd 17295 df-submnd 17336 df-grp 17425 df-minusg 17426 df-sbg 17427 df-mulg 17541 df-subg 17591 df-nsg 17592 df-eqg 17593 df-ghm 17658 df-ga 17723 df-od 17948 df-pgp 17950 df-slw 17951 |
This theorem is referenced by: (None) |
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