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Mirrors > Home > MPE Home > Th. List > symgga | Structured version Visualization version GIF version |
Description: The symmetric group induces a group action on its base set. (Contributed by Mario Carneiro, 24-Jan-2015.) |
Ref | Expression |
---|---|
symgga.g | ⊢ 𝐺 = (SymGrp‘𝑋) |
symgga.b | ⊢ 𝐵 = (Base‘𝐺) |
symgga.f | ⊢ 𝐹 = (𝑓 ∈ 𝐵, 𝑥 ∈ 𝑋 ↦ (𝑓‘𝑥)) |
Ref | Expression |
---|---|
symgga | ⊢ (𝑋 ∈ 𝑉 → 𝐹 ∈ (𝐺 GrpAct 𝑋)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | symgga.g | . . 3 ⊢ 𝐺 = (SymGrp‘𝑋) | |
2 | 1 | symggrp 19006 | . 2 ⊢ (𝑋 ∈ 𝑉 → 𝐺 ∈ Grp) |
3 | symgga.b | . . 3 ⊢ 𝐵 = (Base‘𝐺) | |
4 | 3 | idghm 18847 | . 2 ⊢ (𝐺 ∈ Grp → ( I ↾ 𝐵) ∈ (𝐺 GrpHom 𝐺)) |
5 | symgga.f | . . . 4 ⊢ 𝐹 = (𝑓 ∈ 𝐵, 𝑥 ∈ 𝑋 ↦ (𝑓‘𝑥)) | |
6 | fvresi 7047 | . . . . . . 7 ⊢ (𝑓 ∈ 𝐵 → (( I ↾ 𝐵)‘𝑓) = 𝑓) | |
7 | 6 | adantr 481 | . . . . . 6 ⊢ ((𝑓 ∈ 𝐵 ∧ 𝑥 ∈ 𝑋) → (( I ↾ 𝐵)‘𝑓) = 𝑓) |
8 | 7 | fveq1d 6778 | . . . . 5 ⊢ ((𝑓 ∈ 𝐵 ∧ 𝑥 ∈ 𝑋) → ((( I ↾ 𝐵)‘𝑓)‘𝑥) = (𝑓‘𝑥)) |
9 | 8 | mpoeq3ia 7353 | . . . 4 ⊢ (𝑓 ∈ 𝐵, 𝑥 ∈ 𝑋 ↦ ((( I ↾ 𝐵)‘𝑓)‘𝑥)) = (𝑓 ∈ 𝐵, 𝑥 ∈ 𝑋 ↦ (𝑓‘𝑥)) |
10 | 5, 9 | eqtr4i 2769 | . . 3 ⊢ 𝐹 = (𝑓 ∈ 𝐵, 𝑥 ∈ 𝑋 ↦ ((( I ↾ 𝐵)‘𝑓)‘𝑥)) |
11 | 3, 1, 10 | lactghmga 19011 | . 2 ⊢ (( I ↾ 𝐵) ∈ (𝐺 GrpHom 𝐺) → 𝐹 ∈ (𝐺 GrpAct 𝑋)) |
12 | 2, 4, 11 | 3syl 18 | 1 ⊢ (𝑋 ∈ 𝑉 → 𝐹 ∈ (𝐺 GrpAct 𝑋)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1539 ∈ wcel 2106 I cid 5490 ↾ cres 5593 ‘cfv 6435 (class class class)co 7277 ∈ cmpo 7279 Basecbs 16910 Grpcgrp 18575 GrpHom cghm 18829 GrpAct cga 18893 SymGrpcsymg 18972 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5211 ax-sep 5225 ax-nul 5232 ax-pow 5290 ax-pr 5354 ax-un 7588 ax-cnex 10925 ax-resscn 10926 ax-1cn 10927 ax-icn 10928 ax-addcl 10929 ax-addrcl 10930 ax-mulcl 10931 ax-mulrcl 10932 ax-mulcom 10933 ax-addass 10934 ax-mulass 10935 ax-distr 10936 ax-i2m1 10937 ax-1ne0 10938 ax-1rid 10939 ax-rnegex 10940 ax-rrecex 10941 ax-cnre 10942 ax-pre-lttri 10943 ax-pre-lttrn 10944 ax-pre-ltadd 10945 ax-pre-mulgt0 10946 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3433 df-sbc 3718 df-csb 3834 df-dif 3891 df-un 3893 df-in 3895 df-ss 3905 df-pss 3907 df-nul 4259 df-if 4462 df-pw 4537 df-sn 4564 df-pr 4566 df-tp 4568 df-op 4570 df-uni 4842 df-iun 4928 df-br 5077 df-opab 5139 df-mpt 5160 df-tr 5194 df-id 5491 df-eprel 5497 df-po 5505 df-so 5506 df-fr 5546 df-we 5548 df-xp 5597 df-rel 5598 df-cnv 5599 df-co 5600 df-dm 5601 df-rn 5602 df-res 5603 df-ima 5604 df-pred 6204 df-ord 6271 df-on 6272 df-lim 6273 df-suc 6274 df-iota 6393 df-fun 6437 df-fn 6438 df-f 6439 df-f1 6440 df-fo 6441 df-f1o 6442 df-fv 6443 df-riota 7234 df-ov 7280 df-oprab 7281 df-mpo 7282 df-om 7713 df-1st 7831 df-2nd 7832 df-frecs 8095 df-wrecs 8126 df-recs 8200 df-rdg 8239 df-1o 8295 df-er 8496 df-map 8615 df-en 8732 df-dom 8733 df-sdom 8734 df-fin 8735 df-pnf 11009 df-mnf 11010 df-xr 11011 df-ltxr 11012 df-le 11013 df-sub 11205 df-neg 11206 df-nn 11972 df-2 12034 df-3 12035 df-4 12036 df-5 12037 df-6 12038 df-7 12039 df-8 12040 df-9 12041 df-n0 12232 df-z 12318 df-uz 12581 df-fz 13238 df-struct 16846 df-sets 16863 df-slot 16881 df-ndx 16893 df-base 16911 df-ress 16940 df-plusg 16973 df-tset 16979 df-0g 17150 df-mgm 18324 df-sgrp 18373 df-mnd 18384 df-submnd 18429 df-efmnd 18506 df-grp 18578 df-ghm 18830 df-ga 18894 df-symg 18973 |
This theorem is referenced by: (None) |
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