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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 2763 | . 2 ⊢ (𝐺 ~QG 𝐾) = (𝐺 ~QG 𝐾) | |
| 7 | oveq2 7451 | . . . . . 6 ⊢ (𝑠 = 𝑧 → (𝑢 + 𝑠) = (𝑢 + 𝑧)) | |
| 8 | 7 | cbvmptv 5212 | . . . . 5 ⊢ (𝑠 ∈ 𝑣 ↦ (𝑢 + 𝑠)) = (𝑧 ∈ 𝑣 ↦ (𝑢 + 𝑧)) |
| 9 | oveq1 7450 | . . . . . 6 ⊢ (𝑢 = 𝑥 → (𝑢 + 𝑧) = (𝑥 + 𝑧)) | |
| 10 | 9 | mpteq2dv 5202 | . . . . 5 ⊢ (𝑢 = 𝑥 → (𝑧 ∈ 𝑣 ↦ (𝑢 + 𝑧)) = (𝑧 ∈ 𝑣 ↦ (𝑥 + 𝑧))) |
| 11 | 8, 10 | eqtrid 2810 | . . . 4 ⊢ (𝑢 = 𝑥 → (𝑠 ∈ 𝑣 ↦ (𝑢 + 𝑠)) = (𝑧 ∈ 𝑣 ↦ (𝑥 + 𝑧))) |
| 12 | 11 | rneqd 5927 | . . 3 ⊢ (𝑢 = 𝑥 → ran (𝑠 ∈ 𝑣 ↦ (𝑢 + 𝑠)) = ran (𝑧 ∈ 𝑣 ↦ (𝑥 + 𝑧))) |
| 13 | mpteq1 5197 | . . . 4 ⊢ (𝑣 = 𝑦 → (𝑧 ∈ 𝑣 ↦ (𝑥 + 𝑧)) = (𝑧 ∈ 𝑦 ↦ (𝑥 + 𝑧))) | |
| 14 | 13 | rneqd 5927 | . . 3 ⊢ (𝑣 = 𝑦 → ran (𝑧 ∈ 𝑣 ↦ (𝑥 + 𝑧)) = ran (𝑧 ∈ 𝑦 ↦ (𝑥 + 𝑧))) |
| 15 | 12, 14 | cbvmpov 7538 | . 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 19866 | 1 ⊢ (𝜑 → ∃𝑔 ∈ 𝑋 𝐻 ⊆ ran (𝑥 ∈ 𝐾 ↦ ((𝑔 + 𝑥) − 𝑔))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2147 ∃wrex 3090 ⊆ wss 3900 class class class wbr 5106 ↦ cmpt 5189 ran crn 5656 ‘cfv 6558 (class class class)co 7443 ∈ cmpo 7445 / cqs 8744 Fincfn 9001 ↑cexp 14231 ♯chash 14501 pCnt cpc 17043 Basecbs 17416 ↾s cress 17437 +gcplusg 17457 -gcsg 19175 SubGrpcsubg 19359 ~QG cqg 19361 pGrp cpgp 19770 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5235 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7775 ax-inf2 9669 ax-cnex 11283 ax-resscn 11284 ax-1cn 11285 ax-icn 11286 ax-addcl 11287 ax-addrcl 11288 ax-mulcl 11289 ax-mulrcl 11290 ax-mulcom 11291 ax-addass 11292 ax-mulass 11293 ax-distr 11294 ax-i2m1 11295 ax-1ne0 11296 ax-1rid 11297 ax-rnegex 11298 ax-rrecex 11299 ax-cnre 11300 ax-pre-lttri 11301 ax-pre-lttrn 11302 ax-pre-ltadd 11303 ax-pre-mulgt0 11304 ax-pre-sup 11305 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-int 4911 df-iun 4956 df-disj 5074 df-br 5107 df-opab 5171 df-mpt 5190 df-tr 5216 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-se 5609 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6322 df-ord 6383 df-on 6384 df-lim 6385 df-suc 6386 df-iota 6512 df-fun 6560 df-fn 6561 df-f 6562 df-f1 6563 df-fo 6564 df-f1o 6565 df-fv 6566 df-isom 6567 df-riota 7400 df-ov 7446 df-oprab 7447 df-mpo 7448 df-om 7902 df-1st 8025 df-2nd 8026 df-frecs 8327 df-wrecs 8358 df-recs 8407 df-rdg 8446 df-1o 8504 df-2o 8505 df-oadd 8508 df-omul 8509 df-er 8745 df-ec 8747 df-qs 8751 df-map 8877 df-en 9002 df-dom 9003 df-sdom 9004 df-fin 9005 df-sup 9461 df-inf 9462 df-oi 9531 df-dju 10009 df-card 10047 df-acn 10050 df-pnf 11372 df-mnf 11373 df-xr 11374 df-ltxr 11375 df-le 11376 df-sub 11570 df-neg 11571 df-div 12001 df-nn 12363 df-2 12432 df-3 12433 df-n0 12634 df-xnn0 12707 df-z 12721 df-uz 12993 df-q 13103 df-rp 13148 df-fz 13667 df-fzo 13816 df-fl 13959 df-mod 14037 df-seq 14172 df-exp 14232 df-fac 14445 df-bc 14474 df-hash 14502 df-cj 15295 df-re 15296 df-im 15297 df-sqrt 15431 df-abs 15432 df-clim 15684 df-sum 15883 df-dvds 16452 df-gcd 16694 df-prm 16876 df-pc 17044 df-sets 17371 df-slot 17389 df-ndx 17401 df-base 17417 df-ress 17438 df-plusg 17470 df-0g 17641 df-mgm 18845 df-sgrp 18937 df-mnd 18953 df-submnd 19008 df-grp 19176 df-minusg 19177 df-sbg 19178 df-mulg 19307 df-subg 19362 df-eqg 19364 df-ga 19534 df-od 19772 df-pgp 19774 |
| This theorem is used by: slwhash 19868 sylow2 19870 |
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