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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 19835 | . . . 4 ⊢ ((𝐺 ∈ Grp ∧ 𝑋 ∈ Fin ∧ 𝑃 ∈ ℙ) → (𝑃 pSyl 𝐺) ≠ ∅) |
| 6 | 1, 2, 3, 5 | syl3anc 1398 | . . 3 ⊢ (𝜑 → (𝑃 pSyl 𝐺) ≠ ∅) |
| 7 | n0 4299 | . . 3 ⊢ ((𝑃 pSyl 𝐺) ≠ ∅ ↔ ∃𝑘 𝑘 ∈ (𝑃 pSyl 𝐺)) | |
| 8 | 6, 7 | sylib 221 | . 2 ⊢ (𝜑 → ∃𝑘 𝑘 ∈ (𝑃 pSyl 𝐺)) |
| 9 | sylow3.n | . . . 4 ⊢ 𝑁 = (♯‘(𝑃 pSyl 𝐺)) | |
| 10 | 1 | adantr 486 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → 𝐺 ∈ Grp) |
| 11 | 2 | adantr 486 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → 𝑋 ∈ Fin) |
| 12 | 3 | adantr 486 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → 𝑃 ∈ ℙ) |
| 13 | eqid 2760 | . . . . 5 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 14 | eqid 2760 | . . . . 5 ⊢ (-g‘𝐺) = (-g‘𝐺) | |
| 15 | oveq2 7429 | . . . . . . . . . 10 ⊢ (𝑐 = 𝑧 → (𝑎(+g‘𝐺)𝑐) = (𝑎(+g‘𝐺)𝑧)) | |
| 16 | 15 | oveq1d 7436 | . . . . . . . . 9 ⊢ (𝑐 = 𝑧 → ((𝑎(+g‘𝐺)𝑐)(-g‘𝐺)𝑎) = ((𝑎(+g‘𝐺)𝑧)(-g‘𝐺)𝑎)) |
| 17 | 16 | cbvmptv 5208 | . . . . . . . 8 ⊢ (𝑐 ∈ 𝑏 ↦ ((𝑎(+g‘𝐺)𝑐)(-g‘𝐺)𝑎)) = (𝑧 ∈ 𝑏 ↦ ((𝑎(+g‘𝐺)𝑧)(-g‘𝐺)𝑎)) |
| 18 | oveq1 7428 | . . . . . . . . . 10 ⊢ (𝑎 = 𝑥 → (𝑎(+g‘𝐺)𝑧) = (𝑥(+g‘𝐺)𝑧)) | |
| 19 | id 23 | . . . . . . . . . 10 ⊢ (𝑎 = 𝑥 → 𝑎 = 𝑥) | |
| 20 | 18, 19 | oveq12d 7439 | . . . . . . . . 9 ⊢ (𝑎 = 𝑥 → ((𝑎(+g‘𝐺)𝑧)(-g‘𝐺)𝑎) = ((𝑥(+g‘𝐺)𝑧)(-g‘𝐺)𝑥)) |
| 21 | 20 | mpteq2dv 5198 | . . . . . . . 8 ⊢ (𝑎 = 𝑥 → (𝑧 ∈ 𝑏 ↦ ((𝑎(+g‘𝐺)𝑧)(-g‘𝐺)𝑎)) = (𝑧 ∈ 𝑏 ↦ ((𝑥(+g‘𝐺)𝑧)(-g‘𝐺)𝑥))) |
| 22 | 17, 21 | eqtrid 2807 | . . . . . . 7 ⊢ (𝑎 = 𝑥 → (𝑐 ∈ 𝑏 ↦ ((𝑎(+g‘𝐺)𝑐)(-g‘𝐺)𝑎)) = (𝑧 ∈ 𝑏 ↦ ((𝑥(+g‘𝐺)𝑧)(-g‘𝐺)𝑥))) |
| 23 | 22 | rneqd 5919 | . . . . . 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 5193 | . . . . . . 7 ⊢ (𝑏 = 𝑦 → (𝑧 ∈ 𝑏 ↦ ((𝑥(+g‘𝐺)𝑧)(-g‘𝐺)𝑥)) = (𝑧 ∈ 𝑦 ↦ ((𝑥(+g‘𝐺)𝑧)(-g‘𝐺)𝑥))) | |
| 25 | 24 | rneqd 5919 | . . . . . 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 | cbvmpov 7516 | . . . . 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 490 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → 𝑘 ∈ (𝑃 pSyl 𝐺)) | |
| 28 | eqid 2760 | . . . . 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 2760 | . . . . 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 19850 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → (♯‘(𝑃 pSyl 𝐺)) ∥ ((♯‘𝑋) / (𝑃↑(𝑃 pCnt (♯‘𝑋))))) |
| 31 | 9, 30 | eqbrtrid 5139 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → 𝑁 ∥ ((♯‘𝑋) / (𝑃↑(𝑃 pCnt (♯‘𝑋))))) |
| 32 | 9 | oveq1i 7431 | . . . 4 ⊢ (𝑁 mod 𝑃) = ((♯‘(𝑃 pSyl 𝐺)) mod 𝑃) |
| 33 | 23, 25 | cbvmpov 7516 | . . . . 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 2760 | . . . . 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 19852 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → ((♯‘(𝑃 pSyl 𝐺)) mod 𝑃) = 1) |
| 36 | 32, 35 | eqtrid 2807 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → (𝑁 mod 𝑃) = 1) |
| 37 | 31, 36 | jca 521 | . 2 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑃 pSyl 𝐺)) → (𝑁 ∥ ((♯‘𝑋) / (𝑃↑(𝑃 pCnt (♯‘𝑋)))) ∧ (𝑁 mod 𝑃) = 1)) |
| 38 | 8, 37 | exlimddv 1967 | 1 ⊢ (𝜑 → (𝑁 ∥ ((♯‘𝑋) / (𝑃↑(𝑃 pCnt (♯‘𝑋)))) ∧ (𝑁 mod 𝑃) = 1)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 = wceq 1569 ∃wex 1811 ∈ wcel 2144 ≠ wne 2955 ∀wral 3076 {crab 3412 ∅c0 4278 class class class wbr 5102 ↦ cmpt 5185 ran crn 5651 ‘cfv 6539 (class class class)co 7421 ∈ cmpo 7423 Fincfn 8977 1c1 11205 / cdiv 11977 mod cmo 14013 ↑cexp 14208 ♯chash 14478 ∥ cdvds 16428 ℙcprime 16852 pCnt cpc 17020 Basecbs 17393 +gcplusg 17434 Grpcgrp 19150 -gcsg 19152 pSyl cslw 19747 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7752 ax-inf2 9646 ax-cnex 11260 ax-resscn 11261 ax-1cn 11262 ax-icn 11263 ax-addcl 11264 ax-addrcl 11265 ax-mulcl 11266 ax-mulrcl 11267 ax-mulcom 11268 ax-addass 11269 ax-mulass 11270 ax-distr 11271 ax-i2m1 11272 ax-1ne0 11273 ax-1rid 11274 ax-rnegex 11275 ax-rrecex 11276 ax-cnre 11277 ax-pre-lttri 11278 ax-pre-lttrn 11279 ax-pre-ltadd 11280 ax-pre-mulgt0 11281 ax-pre-sup 11282 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-int 4907 df-iun 4952 df-disj 5070 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-se 5604 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6541 df-fn 6542 df-f 6543 df-f1 6544 df-fo 6545 df-f1o 6546 df-fv 6547 df-isom 6548 df-riota 7378 df-ov 7424 df-oprab 7425 df-mpo 7426 df-om 7879 df-1st 8002 df-2nd 8003 df-frecs 8303 df-wrecs 8334 df-recs 8383 df-rdg 8422 df-1o 8480 df-2o 8481 df-oadd 8484 df-omul 8485 df-er 8721 df-ec 8723 df-qs 8727 df-map 8853 df-en 8978 df-dom 8979 df-sdom 8980 df-fin 8981 df-sup 9438 df-inf 9439 df-oi 9508 df-dju 9986 df-card 10024 df-acn 10027 df-pnf 11349 df-mnf 11350 df-xr 11351 df-ltxr 11352 df-le 11353 df-sub 11547 df-neg 11548 df-div 11978 df-nn 12340 df-2 12409 df-3 12410 df-n0 12611 df-xnn0 12684 df-z 12698 df-uz 12970 df-q 13080 df-rp 13125 df-fz 13644 df-fzo 13793 df-fl 13936 df-mod 14014 df-seq 14149 df-exp 14209 df-fac 14422 df-bc 14451 df-hash 14479 df-cj 15272 df-re 15273 df-im 15274 df-sqrt 15408 df-abs 15409 df-clim 15661 df-sum 15860 df-dvds 16429 df-gcd 16671 df-prm 16853 df-pc 17021 df-sets 17348 df-slot 17366 df-ndx 17378 df-base 17394 df-ress 17415 df-plusg 17447 df-0g 17618 df-mgm 18822 df-sgrp 18914 df-mnd 18930 df-submnd 18985 df-grp 19153 df-minusg 19154 df-sbg 19155 df-mulg 19284 df-subg 19339 df-nsg 19340 df-eqg 19341 df-ghm 19434 df-ga 19510 df-od 19748 df-pgp 19750 df-slw 19751 |
| This theorem is used by: (None) |
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