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Mirrors > Home > MPE Home > Th. List > subg0cl | Structured version Visualization version GIF version |
Description: The group identity is an element of any subgroup. (Contributed by Mario Carneiro, 2-Dec-2014.) |
Ref | Expression |
---|---|
subg0cl.i | ⊢ 0 = (0g‘𝐺) |
Ref | Expression |
---|---|
subg0cl | ⊢ (𝑆 ∈ (SubGrp‘𝐺) → 0 ∈ 𝑆) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2730 | . . . 4 ⊢ (𝐺 ↾s 𝑆) = (𝐺 ↾s 𝑆) | |
2 | 1 | subggrp 19045 | . . 3 ⊢ (𝑆 ∈ (SubGrp‘𝐺) → (𝐺 ↾s 𝑆) ∈ Grp) |
3 | eqid 2730 | . . . 4 ⊢ (Base‘(𝐺 ↾s 𝑆)) = (Base‘(𝐺 ↾s 𝑆)) | |
4 | eqid 2730 | . . . 4 ⊢ (0g‘(𝐺 ↾s 𝑆)) = (0g‘(𝐺 ↾s 𝑆)) | |
5 | 3, 4 | grpidcl 18886 | . . 3 ⊢ ((𝐺 ↾s 𝑆) ∈ Grp → (0g‘(𝐺 ↾s 𝑆)) ∈ (Base‘(𝐺 ↾s 𝑆))) |
6 | 2, 5 | syl 17 | . 2 ⊢ (𝑆 ∈ (SubGrp‘𝐺) → (0g‘(𝐺 ↾s 𝑆)) ∈ (Base‘(𝐺 ↾s 𝑆))) |
7 | subg0cl.i | . . 3 ⊢ 0 = (0g‘𝐺) | |
8 | 1, 7 | subg0 19048 | . 2 ⊢ (𝑆 ∈ (SubGrp‘𝐺) → 0 = (0g‘(𝐺 ↾s 𝑆))) |
9 | 1 | subgbas 19046 | . 2 ⊢ (𝑆 ∈ (SubGrp‘𝐺) → 𝑆 = (Base‘(𝐺 ↾s 𝑆))) |
10 | 6, 8, 9 | 3eltr4d 2846 | 1 ⊢ (𝑆 ∈ (SubGrp‘𝐺) → 0 ∈ 𝑆) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1539 ∈ wcel 2104 ‘cfv 6542 (class class class)co 7411 Basecbs 17148 ↾s cress 17177 0gc0g 17389 Grpcgrp 18855 SubGrpcsubg 19036 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1911 ax-6 1969 ax-7 2009 ax-8 2106 ax-9 2114 ax-10 2135 ax-11 2152 ax-12 2169 ax-ext 2701 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7727 ax-cnex 11168 ax-resscn 11169 ax-1cn 11170 ax-icn 11171 ax-addcl 11172 ax-addrcl 11173 ax-mulcl 11174 ax-mulrcl 11175 ax-mulcom 11176 ax-addass 11177 ax-mulass 11178 ax-distr 11179 ax-i2m1 11180 ax-1ne0 11181 ax-1rid 11182 ax-rnegex 11183 ax-rrecex 11184 ax-cnre 11185 ax-pre-lttri 11186 ax-pre-lttrn 11187 ax-pre-ltadd 11188 ax-pre-mulgt0 11189 |
This theorem depends on definitions: df-bi 206 df-an 395 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2532 df-eu 2561 df-clab 2708 df-cleq 2722 df-clel 2808 df-nfc 2883 df-ne 2939 df-nel 3045 df-ral 3060 df-rex 3069 df-rmo 3374 df-reu 3375 df-rab 3431 df-v 3474 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4322 df-if 4528 df-pw 4603 df-sn 4628 df-pr 4630 df-op 4634 df-uni 4908 df-iun 4998 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5573 df-eprel 5579 df-po 5587 df-so 5588 df-fr 5630 df-we 5632 df-xp 5681 df-rel 5682 df-cnv 5683 df-co 5684 df-dm 5685 df-rn 5686 df-res 5687 df-ima 5688 df-pred 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-riota 7367 df-ov 7414 df-oprab 7415 df-mpo 7416 df-om 7858 df-2nd 7978 df-frecs 8268 df-wrecs 8299 df-recs 8373 df-rdg 8412 df-er 8705 df-en 8942 df-dom 8943 df-sdom 8944 df-pnf 11254 df-mnf 11255 df-xr 11256 df-ltxr 11257 df-le 11258 df-sub 11450 df-neg 11451 df-nn 12217 df-2 12279 df-sets 17101 df-slot 17119 df-ndx 17131 df-base 17149 df-ress 17178 df-plusg 17214 df-0g 17391 df-mgm 18565 df-sgrp 18644 df-mnd 18660 df-grp 18858 df-subg 19039 |
This theorem is referenced by: subgmulgcl 19055 issubg3 19060 issubg4 19061 subgint 19066 trivsubgd 19069 eqger 19094 ghmpreima 19152 subgga 19205 gasubg 19207 sylow1lem5 19511 sylow2blem2 19530 sylow2blem3 19531 fislw 19534 sylow3lem3 19538 sylow3lem4 19539 lsm01 19580 lsm02 19581 lsmdisj 19590 lsmdisj2 19591 pj1lid 19610 pj1rid 19611 dmdprdd 19910 dprdfid 19928 dprdfeq0 19933 dprdsubg 19935 dprdres 19939 dprdz 19941 dprdsn 19947 dmdprdsplitlem 19948 dprddisj2 19950 dprd2da 19953 dmdprdsplit2lem 19956 ablfacrp 19977 ablfacrp2 19978 ablfac1c 19982 ablfac1eu 19984 pgpfac1lem3a 19987 pgpfac1lem3 19988 pgpfac1lem5 19990 pgpfaclem2 19993 pgpfaclem3 19994 prmgrpsimpgd 20025 primefld0cl 20565 abvres 20590 islss4 20717 dflidl2lem 20991 2idlcpblrng 21020 dflidl2rng 21030 rnglidlrng 21036 rng2idl0 21040 rng2idlsubg0 21043 rng2idl1cntr 21064 subrgpsr 21758 mpllsslem 21778 0elcpmat 22444 opnsubg 23832 clssubg 23833 tgpconncompss 23838 plypf1 25961 dvply2g 26034 efsubm 26296 dchrptlem3 27005 gsumsubg 32468 nsgqus0 32795 nsgqusf1olem1 32798 ressply10g 32930 ressply1invg 32932 drgext0gsca 32966 fedgmullem2 33003 algextdeglem4 33065 algextdeglem5 33066 fsumcnsrcl 42210 cnsrplycl 42211 rngunsnply 42217 |
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