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| Mirrors > Home > MPE Home > Th. List > slwn0 | Structured version Visualization version GIF version | ||
| Description: Every finite group contains a Sylow 𝑃-subgroup. (Contributed by Mario Carneiro, 16-Jan-2015.) |
| Ref | Expression |
|---|---|
| slwn0.1 | ⊢ 𝑋 = (Base‘𝐺) |
| Ref | Expression |
|---|---|
| slwn0 | ⊢ ((𝐺 ∈ Grp ∧ 𝑋 ∈ Fin ∧ 𝑃 ∈ ℙ) → (𝑃 pSyl 𝐺) ≠ ∅) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2762 | . . . . 5 ⊢ (0g‘𝐺) = (0g‘𝐺) | |
| 2 | 1 | 0subg 19281 | . . . 4 ⊢ (𝐺 ∈ Grp → {(0g‘𝐺)} ∈ (SubGrp‘𝐺)) |
| 3 | 2 | 3ad2ant1 1151 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ 𝑋 ∈ Fin ∧ 𝑃 ∈ ℙ) → {(0g‘𝐺)} ∈ (SubGrp‘𝐺)) |
| 4 | simp2 1155 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ 𝑋 ∈ Fin ∧ 𝑃 ∈ ℙ) → 𝑋 ∈ Fin) | |
| 5 | 1 | pgp0 19729 | . . . 4 ⊢ ((𝐺 ∈ Grp ∧ 𝑃 ∈ ℙ) → 𝑃 pGrp (𝐺 ↾s {(0g‘𝐺)})) |
| 6 | 5 | 3adant2 1149 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ 𝑋 ∈ Fin ∧ 𝑃 ∈ ℙ) → 𝑃 pGrp (𝐺 ↾s {(0g‘𝐺)})) |
| 7 | slwn0.1 | . . . 4 ⊢ 𝑋 = (Base‘𝐺) | |
| 8 | eqid 2762 | . . . 4 ⊢ (𝐺 ↾s {(0g‘𝐺)}) = (𝐺 ↾s {(0g‘𝐺)}) | |
| 9 | eqid 2762 | . . . 4 ⊢ (𝑥 ∈ {𝑦 ∈ (SubGrp‘𝐺) ∣ (𝑃 pGrp (𝐺 ↾s 𝑦) ∧ {(0g‘𝐺)} ⊆ 𝑦)} ↦ (♯‘𝑥)) = (𝑥 ∈ {𝑦 ∈ (SubGrp‘𝐺) ∣ (𝑃 pGrp (𝐺 ↾s 𝑦) ∧ {(0g‘𝐺)} ⊆ 𝑦)} ↦ (♯‘𝑥)) | |
| 10 | 7, 8, 9 | pgpssslw 19747 | . . 3 ⊢ (({(0g‘𝐺)} ∈ (SubGrp‘𝐺) ∧ 𝑋 ∈ Fin ∧ 𝑃 pGrp (𝐺 ↾s {(0g‘𝐺)})) → ∃𝑧 ∈ (𝑃 pSyl 𝐺){(0g‘𝐺)} ⊆ 𝑧) |
| 11 | 3, 4, 6, 10 | syl3anc 1398 | . 2 ⊢ ((𝐺 ∈ Grp ∧ 𝑋 ∈ Fin ∧ 𝑃 ∈ ℙ) → ∃𝑧 ∈ (𝑃 pSyl 𝐺){(0g‘𝐺)} ⊆ 𝑧) |
| 12 | rexn0 4455 | . 2 ⊢ (∃𝑧 ∈ (𝑃 pSyl 𝐺){(0g‘𝐺)} ⊆ 𝑧 → (𝑃 pSyl 𝐺) ≠ ∅) | |
| 13 | 11, 12 | syl 18 | 1 ⊢ ((𝐺 ∈ Grp ∧ 𝑋 ∈ Fin ∧ 𝑃 ∈ ℙ) → (𝑃 pSyl 𝐺) ≠ ∅) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∧ w3a 1103 = wceq 1570 ∈ wcel 2145 ≠ wne 2957 ∃wrex 3088 {crab 3414 ⊆ wss 3902 ∅c0 4282 {csn 4587 class class class wbr 5107 ↦ cmpt 5190 ‘cfv 6537 (class class class)co 7417 Fincfn 8956 ♯chash 14398 ℙcprime 16767 Basecbs 17307 ↾s cress 17328 0gc0g 17530 Grpcgrp 19063 SubGrpcsubg 19249 pGrp cpgp 19659 pSyl cslw 19660 |
| 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 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2734 ax-rep 5236 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7740 ax-inf2 9624 ax-cnex 11184 ax-resscn 11185 ax-1cn 11186 ax-icn 11187 ax-addcl 11188 ax-addrcl 11189 ax-mulcl 11190 ax-mulrcl 11191 ax-mulcom 11192 ax-addass 11193 ax-mulass 11194 ax-distr 11195 ax-i2m1 11196 ax-1ne0 11197 ax-1rid 11198 ax-rnegex 11199 ax-rrecex 11200 ax-cnre 11201 ax-pre-lttri 11202 ax-pre-lttrn 11203 ax-pre-ltadd 11204 ax-pre-mulgt0 11205 ax-pre-sup 11206 |
| 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 2100 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-rmo 3367 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-int 4911 df-iun 4956 df-disj 5075 df-br 5108 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-se 5613 df-we 5614 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-isom 6546 df-riota 7374 df-ov 7420 df-oprab 7421 df-mpo 7422 df-om 7867 df-1st 7990 df-2nd 7991 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-1o 8459 df-2o 8460 df-oadd 8463 df-omul 8464 df-er 8700 df-ec 8702 df-qs 8706 df-map 8832 df-en 8957 df-dom 8958 df-sdom 8959 df-fin 8960 df-sup 9416 df-inf 9417 df-oi 9486 df-card 9948 df-acn 9951 df-pnf 11273 df-mnf 11274 df-xr 11275 df-ltxr 11276 df-le 11277 df-sub 11471 df-neg 11472 df-div 11900 df-nn 12262 df-2 12331 df-3 12332 df-n0 12533 df-xnn0 12606 df-z 12620 df-uz 12892 df-q 13002 df-rp 13047 df-fz 13566 df-fzo 13714 df-fl 13857 df-mod 13935 df-seq 14070 df-exp 14130 df-hash 14399 df-cj 15190 df-re 15191 df-im 15192 df-sqrt 15326 df-abs 15327 df-clim 15579 df-sum 15778 df-dvds 16349 df-gcd 16591 df-prm 16768 df-pc 16935 df-sets 17262 df-slot 17280 df-ndx 17292 df-base 17308 df-ress 17329 df-plusg 17361 df-0g 17532 df-mgm 18736 df-sgrp 18827 df-mnd 18843 df-submnd 18898 df-grp 19066 df-minusg 19067 df-sbg 19068 df-mulg 19197 df-subg 19252 df-eqg 19254 df-od 19661 df-pgp 19663 df-slw 19664 |
| This theorem is used by: sylow3 19766 |
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