Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > pgp0 | Structured version Visualization version GIF version |
Description: The identity subgroup is a 𝑃-group for every prime 𝑃. (Contributed by Mario Carneiro, 19-Jan-2015.) |
Ref | Expression |
---|---|
pgp0.1 | ⊢ 0 = (0g‘𝐺) |
Ref | Expression |
---|---|
pgp0 | ⊢ ((𝐺 ∈ Grp ∧ 𝑃 ∈ ℙ) → 𝑃 pGrp (𝐺 ↾s { 0 })) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | prmnn 16307 | . . . . . 6 ⊢ (𝑃 ∈ ℙ → 𝑃 ∈ ℕ) | |
2 | 1 | adantl 481 | . . . . 5 ⊢ ((𝐺 ∈ Grp ∧ 𝑃 ∈ ℙ) → 𝑃 ∈ ℕ) |
3 | 2 | nncnd 11919 | . . . 4 ⊢ ((𝐺 ∈ Grp ∧ 𝑃 ∈ ℙ) → 𝑃 ∈ ℂ) |
4 | 3 | exp0d 13786 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ 𝑃 ∈ ℙ) → (𝑃↑0) = 1) |
5 | pgp0.1 | . . . . . 6 ⊢ 0 = (0g‘𝐺) | |
6 | 5 | fvexi 6770 | . . . . 5 ⊢ 0 ∈ V |
7 | hashsng 14012 | . . . . 5 ⊢ ( 0 ∈ V → (♯‘{ 0 }) = 1) | |
8 | 6, 7 | ax-mp 5 | . . . 4 ⊢ (♯‘{ 0 }) = 1 |
9 | 5 | 0subg 18695 | . . . . . . 7 ⊢ (𝐺 ∈ Grp → { 0 } ∈ (SubGrp‘𝐺)) |
10 | 9 | adantr 480 | . . . . . 6 ⊢ ((𝐺 ∈ Grp ∧ 𝑃 ∈ ℙ) → { 0 } ∈ (SubGrp‘𝐺)) |
11 | eqid 2738 | . . . . . . 7 ⊢ (𝐺 ↾s { 0 }) = (𝐺 ↾s { 0 }) | |
12 | 11 | subgbas 18674 | . . . . . 6 ⊢ ({ 0 } ∈ (SubGrp‘𝐺) → { 0 } = (Base‘(𝐺 ↾s { 0 }))) |
13 | 10, 12 | syl 17 | . . . . 5 ⊢ ((𝐺 ∈ Grp ∧ 𝑃 ∈ ℙ) → { 0 } = (Base‘(𝐺 ↾s { 0 }))) |
14 | 13 | fveq2d 6760 | . . . 4 ⊢ ((𝐺 ∈ Grp ∧ 𝑃 ∈ ℙ) → (♯‘{ 0 }) = (♯‘(Base‘(𝐺 ↾s { 0 })))) |
15 | 8, 14 | eqtr3id 2793 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ 𝑃 ∈ ℙ) → 1 = (♯‘(Base‘(𝐺 ↾s { 0 })))) |
16 | 4, 15 | eqtr2d 2779 | . 2 ⊢ ((𝐺 ∈ Grp ∧ 𝑃 ∈ ℙ) → (♯‘(Base‘(𝐺 ↾s { 0 }))) = (𝑃↑0)) |
17 | 11 | subggrp 18673 | . . . 4 ⊢ ({ 0 } ∈ (SubGrp‘𝐺) → (𝐺 ↾s { 0 }) ∈ Grp) |
18 | 10, 17 | syl 17 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ 𝑃 ∈ ℙ) → (𝐺 ↾s { 0 }) ∈ Grp) |
19 | simpr 484 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ 𝑃 ∈ ℙ) → 𝑃 ∈ ℙ) | |
20 | 0nn0 12178 | . . . 4 ⊢ 0 ∈ ℕ0 | |
21 | 20 | a1i 11 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ 𝑃 ∈ ℙ) → 0 ∈ ℕ0) |
22 | eqid 2738 | . . . 4 ⊢ (Base‘(𝐺 ↾s { 0 })) = (Base‘(𝐺 ↾s { 0 })) | |
23 | 22 | pgpfi1 19115 | . . 3 ⊢ (((𝐺 ↾s { 0 }) ∈ Grp ∧ 𝑃 ∈ ℙ ∧ 0 ∈ ℕ0) → ((♯‘(Base‘(𝐺 ↾s { 0 }))) = (𝑃↑0) → 𝑃 pGrp (𝐺 ↾s { 0 }))) |
24 | 18, 19, 21, 23 | syl3anc 1369 | . 2 ⊢ ((𝐺 ∈ Grp ∧ 𝑃 ∈ ℙ) → ((♯‘(Base‘(𝐺 ↾s { 0 }))) = (𝑃↑0) → 𝑃 pGrp (𝐺 ↾s { 0 }))) |
25 | 16, 24 | mpd 15 | 1 ⊢ ((𝐺 ∈ Grp ∧ 𝑃 ∈ ℙ) → 𝑃 pGrp (𝐺 ↾s { 0 })) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 = wceq 1539 ∈ wcel 2108 Vcvv 3422 {csn 4558 class class class wbr 5070 ‘cfv 6418 (class class class)co 7255 0cc0 10802 1c1 10803 ℕcn 11903 ℕ0cn0 12163 ↑cexp 13710 ♯chash 13972 ℙcprime 16304 Basecbs 16840 ↾s cress 16867 0gc0g 17067 Grpcgrp 18492 SubGrpcsubg 18664 pGrp cpgp 19049 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-inf2 9329 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 ax-pre-sup 10880 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-int 4877 df-iun 4923 df-disj 5036 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-se 5536 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-isom 6427 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-2o 8268 df-oadd 8271 df-omul 8272 df-er 8456 df-ec 8458 df-qs 8462 df-map 8575 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-sup 9131 df-inf 9132 df-oi 9199 df-card 9628 df-acn 9631 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-div 11563 df-nn 11904 df-2 11966 df-3 11967 df-n0 12164 df-z 12250 df-uz 12512 df-q 12618 df-rp 12660 df-fz 13169 df-fzo 13312 df-fl 13440 df-mod 13518 df-seq 13650 df-exp 13711 df-hash 13973 df-cj 14738 df-re 14739 df-im 14740 df-sqrt 14874 df-abs 14875 df-clim 15125 df-sum 15326 df-dvds 15892 df-gcd 16130 df-prm 16305 df-pc 16466 df-sets 16793 df-slot 16811 df-ndx 16823 df-base 16841 df-ress 16868 df-plusg 16901 df-0g 17069 df-mgm 18241 df-sgrp 18290 df-mnd 18301 df-grp 18495 df-minusg 18496 df-sbg 18497 df-mulg 18616 df-subg 18667 df-eqg 18669 df-od 19051 df-pgp 19053 |
This theorem is referenced by: slwn0 19135 |
Copyright terms: Public domain | W3C validator |