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| Mirrors > Home > MPE Home > Th. List > sylow2b | Structured version Visualization version GIF version | ||
| Description: Sylow's second theorem. Any 𝑃-group 𝐻 is a subgroup of a conjugated 𝑃-group 𝐾 of order 𝑃↑𝑛 ∥ (♯‘𝑋) with 𝑛 maximal. This is usually stated under the assumption that 𝐾 is a Sylow subgroup, but we use a slightly different definition, whose equivalence to this one requires this theorem. This is part of Metamath 100 proof #72. (Contributed by Mario Carneiro, 18-Jan-2015.) |
| Ref | Expression |
|---|---|
| sylow2b.x | ⊢ 𝑋 = (Base‘𝐺) |
| sylow2b.xf | ⊢ (𝜑 → 𝑋 ∈ Fin) |
| sylow2b.h | ⊢ (𝜑 → 𝐻 ∈ (SubGrp‘𝐺)) |
| sylow2b.k | ⊢ (𝜑 → 𝐾 ∈ (SubGrp‘𝐺)) |
| sylow2b.a | ⊢ + = (+g‘𝐺) |
| sylow2b.hp | ⊢ (𝜑 → 𝑃 pGrp (𝐺 ↾s 𝐻)) |
| sylow2b.kn | ⊢ (𝜑 → (♯‘𝐾) = (𝑃↑(𝑃 pCnt (♯‘𝑋)))) |
| sylow2b.d | ⊢ − = (-g‘𝐺) |
| Ref | Expression |
|---|---|
| sylow2b | ⊢ (𝜑 → ∃𝑔 ∈ 𝑋 𝐻 ⊆ ran (𝑥 ∈ 𝐾 ↦ ((𝑔 + 𝑥) − 𝑔))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sylow2b.x | . 2 ⊢ 𝑋 = (Base‘𝐺) | |
| 2 | sylow2b.xf | . 2 ⊢ (𝜑 → 𝑋 ∈ Fin) | |
| 3 | sylow2b.h | . 2 ⊢ (𝜑 → 𝐻 ∈ (SubGrp‘𝐺)) | |
| 4 | sylow2b.k | . 2 ⊢ (𝜑 → 𝐾 ∈ (SubGrp‘𝐺)) | |
| 5 | sylow2b.a | . 2 ⊢ + = (+g‘𝐺) | |
| 6 | eqid 2737 | . 2 ⊢ (𝐺 ~QG 𝐾) = (𝐺 ~QG 𝐾) | |
| 7 | oveq2 7368 | . . . . . 6 ⊢ (𝑠 = 𝑧 → (𝑢 + 𝑠) = (𝑢 + 𝑧)) | |
| 8 | 7 | cbvmptv 5190 | . . . . 5 ⊢ (𝑠 ∈ 𝑣 ↦ (𝑢 + 𝑠)) = (𝑧 ∈ 𝑣 ↦ (𝑢 + 𝑧)) |
| 9 | oveq1 7367 | . . . . . 6 ⊢ (𝑢 = 𝑥 → (𝑢 + 𝑧) = (𝑥 + 𝑧)) | |
| 10 | 9 | mpteq2dv 5180 | . . . . 5 ⊢ (𝑢 = 𝑥 → (𝑧 ∈ 𝑣 ↦ (𝑢 + 𝑧)) = (𝑧 ∈ 𝑣 ↦ (𝑥 + 𝑧))) |
| 11 | 8, 10 | eqtrid 2784 | . . . 4 ⊢ (𝑢 = 𝑥 → (𝑠 ∈ 𝑣 ↦ (𝑢 + 𝑠)) = (𝑧 ∈ 𝑣 ↦ (𝑥 + 𝑧))) |
| 12 | 11 | rneqd 5887 | . . 3 ⊢ (𝑢 = 𝑥 → ran (𝑠 ∈ 𝑣 ↦ (𝑢 + 𝑠)) = ran (𝑧 ∈ 𝑣 ↦ (𝑥 + 𝑧))) |
| 13 | mpteq1 5175 | . . . 4 ⊢ (𝑣 = 𝑦 → (𝑧 ∈ 𝑣 ↦ (𝑥 + 𝑧)) = (𝑧 ∈ 𝑦 ↦ (𝑥 + 𝑧))) | |
| 14 | 13 | rneqd 5887 | . . 3 ⊢ (𝑣 = 𝑦 → ran (𝑧 ∈ 𝑣 ↦ (𝑥 + 𝑧)) = ran (𝑧 ∈ 𝑦 ↦ (𝑥 + 𝑧))) |
| 15 | 12, 14 | cbvmpov 7455 | . 2 ⊢ (𝑢 ∈ 𝐻, 𝑣 ∈ (𝑋 / (𝐺 ~QG 𝐾)) ↦ ran (𝑠 ∈ 𝑣 ↦ (𝑢 + 𝑠))) = (𝑥 ∈ 𝐻, 𝑦 ∈ (𝑋 / (𝐺 ~QG 𝐾)) ↦ ran (𝑧 ∈ 𝑦 ↦ (𝑥 + 𝑧))) |
| 16 | sylow2b.hp | . 2 ⊢ (𝜑 → 𝑃 pGrp (𝐺 ↾s 𝐻)) | |
| 17 | sylow2b.kn | . 2 ⊢ (𝜑 → (♯‘𝐾) = (𝑃↑(𝑃 pCnt (♯‘𝑋)))) | |
| 18 | sylow2b.d | . 2 ⊢ − = (-g‘𝐺) | |
| 19 | 1, 2, 3, 4, 5, 6, 15, 16, 17, 18 | sylow2blem3 19588 | 1 ⊢ (𝜑 → ∃𝑔 ∈ 𝑋 𝐻 ⊆ ran (𝑥 ∈ 𝐾 ↦ ((𝑔 + 𝑥) − 𝑔))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 ∃wrex 3062 ⊆ wss 3890 class class class wbr 5086 ↦ cmpt 5167 ran crn 5625 ‘cfv 6492 (class class class)co 7360 ∈ cmpo 7362 / cqs 8635 Fincfn 8886 ↑cexp 14014 ♯chash 14283 pCnt cpc 16798 Basecbs 17170 ↾s cress 17191 +gcplusg 17211 -gcsg 18902 SubGrpcsubg 19087 ~QG cqg 19089 pGrp cpgp 19492 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5302 ax-pr 5370 ax-un 7682 ax-inf2 9553 ax-cnex 11085 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-addrcl 11090 ax-mulcl 11091 ax-mulrcl 11092 ax-mulcom 11093 ax-addass 11094 ax-mulass 11095 ax-distr 11096 ax-i2m1 11097 ax-1ne0 11098 ax-1rid 11099 ax-rnegex 11100 ax-rrecex 11101 ax-cnre 11102 ax-pre-lttri 11103 ax-pre-lttrn 11104 ax-pre-ltadd 11105 ax-pre-mulgt0 11106 ax-pre-sup 11107 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-disj 5054 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5519 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-se 5578 df-we 5579 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-isom 6501 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-1st 7935 df-2nd 7936 df-frecs 8224 df-wrecs 8255 df-recs 8304 df-rdg 8342 df-1o 8398 df-2o 8399 df-oadd 8402 df-omul 8403 df-er 8636 df-ec 8638 df-qs 8642 df-map 8768 df-en 8887 df-dom 8888 df-sdom 8889 df-fin 8890 df-sup 9348 df-inf 9349 df-oi 9418 df-dju 9816 df-card 9854 df-acn 9857 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-div 11799 df-nn 12166 df-2 12235 df-3 12236 df-n0 12429 df-xnn0 12502 df-z 12516 df-uz 12780 df-q 12890 df-rp 12934 df-fz 13453 df-fzo 13600 df-fl 13742 df-mod 13820 df-seq 13955 df-exp 14015 df-fac 14227 df-bc 14256 df-hash 14284 df-cj 15052 df-re 15053 df-im 15054 df-sqrt 15188 df-abs 15189 df-clim 15441 df-sum 15640 df-dvds 16213 df-gcd 16455 df-prm 16632 df-pc 16799 df-sets 17125 df-slot 17143 df-ndx 17155 df-base 17171 df-ress 17192 df-plusg 17224 df-0g 17395 df-mgm 18599 df-sgrp 18678 df-mnd 18694 df-submnd 18743 df-grp 18903 df-minusg 18904 df-sbg 18905 df-mulg 19035 df-subg 19090 df-eqg 19092 df-ga 19256 df-od 19494 df-pgp 19496 |
| This theorem is referenced by: slwhash 19590 sylow2 19592 |
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