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Mirrors > Home > MPE Home > Th. List > orbstafun | Structured version Visualization version GIF version |
Description: Existence and uniqueness for the function of orbsta 19052. (Contributed by Mario Carneiro, 15-Jan-2015.) (Proof shortened by Mario Carneiro, 23-Dec-2016.) |
Ref | Expression |
---|---|
gasta.1 | ⊢ 𝑋 = (Base‘𝐺) |
gasta.2 | ⊢ 𝐻 = {𝑢 ∈ 𝑋 ∣ (𝑢 ⊕ 𝐴) = 𝐴} |
orbsta.r | ⊢ ∼ = (𝐺 ~QG 𝐻) |
orbsta.f | ⊢ 𝐹 = ran (𝑘 ∈ 𝑋 ↦ 〈[𝑘] ∼ , (𝑘 ⊕ 𝐴)〉) |
Ref | Expression |
---|---|
orbstafun | ⊢ (( ⊕ ∈ (𝐺 GrpAct 𝑌) ∧ 𝐴 ∈ 𝑌) → Fun 𝐹) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | orbsta.f | . 2 ⊢ 𝐹 = ran (𝑘 ∈ 𝑋 ↦ 〈[𝑘] ∼ , (𝑘 ⊕ 𝐴)〉) | |
2 | ovexd 7386 | . 2 ⊢ ((( ⊕ ∈ (𝐺 GrpAct 𝑌) ∧ 𝐴 ∈ 𝑌) ∧ 𝑘 ∈ 𝑋) → (𝑘 ⊕ 𝐴) ∈ V) | |
3 | gasta.1 | . . . 4 ⊢ 𝑋 = (Base‘𝐺) | |
4 | gasta.2 | . . . 4 ⊢ 𝐻 = {𝑢 ∈ 𝑋 ∣ (𝑢 ⊕ 𝐴) = 𝐴} | |
5 | 3, 4 | gastacl 19048 | . . 3 ⊢ (( ⊕ ∈ (𝐺 GrpAct 𝑌) ∧ 𝐴 ∈ 𝑌) → 𝐻 ∈ (SubGrp‘𝐺)) |
6 | orbsta.r | . . . 4 ⊢ ∼ = (𝐺 ~QG 𝐻) | |
7 | 3, 6 | eqger 18939 | . . 3 ⊢ (𝐻 ∈ (SubGrp‘𝐺) → ∼ Er 𝑋) |
8 | 5, 7 | syl 17 | . 2 ⊢ (( ⊕ ∈ (𝐺 GrpAct 𝑌) ∧ 𝐴 ∈ 𝑌) → ∼ Er 𝑋) |
9 | 3 | fvexi 6853 | . . 3 ⊢ 𝑋 ∈ V |
10 | 9 | a1i 11 | . 2 ⊢ (( ⊕ ∈ (𝐺 GrpAct 𝑌) ∧ 𝐴 ∈ 𝑌) → 𝑋 ∈ V) |
11 | oveq1 7358 | . 2 ⊢ (𝑘 = ℎ → (𝑘 ⊕ 𝐴) = (ℎ ⊕ 𝐴)) | |
12 | simpr 485 | . . 3 ⊢ ((( ⊕ ∈ (𝐺 GrpAct 𝑌) ∧ 𝐴 ∈ 𝑌) ∧ 𝑘 ∼ ℎ) → 𝑘 ∼ ℎ) | |
13 | subgrcl 18892 | . . . . . . . . 9 ⊢ (𝐻 ∈ (SubGrp‘𝐺) → 𝐺 ∈ Grp) | |
14 | 3 | subgss 18888 | . . . . . . . . 9 ⊢ (𝐻 ∈ (SubGrp‘𝐺) → 𝐻 ⊆ 𝑋) |
15 | eqid 2737 | . . . . . . . . . 10 ⊢ (invg‘𝐺) = (invg‘𝐺) | |
16 | eqid 2737 | . . . . . . . . . 10 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
17 | 3, 15, 16, 6 | eqgval 18938 | . . . . . . . . 9 ⊢ ((𝐺 ∈ Grp ∧ 𝐻 ⊆ 𝑋) → (𝑘 ∼ ℎ ↔ (𝑘 ∈ 𝑋 ∧ ℎ ∈ 𝑋 ∧ (((invg‘𝐺)‘𝑘)(+g‘𝐺)ℎ) ∈ 𝐻))) |
18 | 13, 14, 17 | syl2anc 584 | . . . . . . . 8 ⊢ (𝐻 ∈ (SubGrp‘𝐺) → (𝑘 ∼ ℎ ↔ (𝑘 ∈ 𝑋 ∧ ℎ ∈ 𝑋 ∧ (((invg‘𝐺)‘𝑘)(+g‘𝐺)ℎ) ∈ 𝐻))) |
19 | 5, 18 | syl 17 | . . . . . . 7 ⊢ (( ⊕ ∈ (𝐺 GrpAct 𝑌) ∧ 𝐴 ∈ 𝑌) → (𝑘 ∼ ℎ ↔ (𝑘 ∈ 𝑋 ∧ ℎ ∈ 𝑋 ∧ (((invg‘𝐺)‘𝑘)(+g‘𝐺)ℎ) ∈ 𝐻))) |
20 | 19 | biimpa 477 | . . . . . 6 ⊢ ((( ⊕ ∈ (𝐺 GrpAct 𝑌) ∧ 𝐴 ∈ 𝑌) ∧ 𝑘 ∼ ℎ) → (𝑘 ∈ 𝑋 ∧ ℎ ∈ 𝑋 ∧ (((invg‘𝐺)‘𝑘)(+g‘𝐺)ℎ) ∈ 𝐻)) |
21 | 20 | simp1d 1142 | . . . . 5 ⊢ ((( ⊕ ∈ (𝐺 GrpAct 𝑌) ∧ 𝐴 ∈ 𝑌) ∧ 𝑘 ∼ ℎ) → 𝑘 ∈ 𝑋) |
22 | 20 | simp2d 1143 | . . . . 5 ⊢ ((( ⊕ ∈ (𝐺 GrpAct 𝑌) ∧ 𝐴 ∈ 𝑌) ∧ 𝑘 ∼ ℎ) → ℎ ∈ 𝑋) |
23 | 21, 22 | jca 512 | . . . 4 ⊢ ((( ⊕ ∈ (𝐺 GrpAct 𝑌) ∧ 𝐴 ∈ 𝑌) ∧ 𝑘 ∼ ℎ) → (𝑘 ∈ 𝑋 ∧ ℎ ∈ 𝑋)) |
24 | 3, 4, 6 | gastacos 19049 | . . . 4 ⊢ ((( ⊕ ∈ (𝐺 GrpAct 𝑌) ∧ 𝐴 ∈ 𝑌) ∧ (𝑘 ∈ 𝑋 ∧ ℎ ∈ 𝑋)) → (𝑘 ∼ ℎ ↔ (𝑘 ⊕ 𝐴) = (ℎ ⊕ 𝐴))) |
25 | 23, 24 | syldan 591 | . . 3 ⊢ ((( ⊕ ∈ (𝐺 GrpAct 𝑌) ∧ 𝐴 ∈ 𝑌) ∧ 𝑘 ∼ ℎ) → (𝑘 ∼ ℎ ↔ (𝑘 ⊕ 𝐴) = (ℎ ⊕ 𝐴))) |
26 | 12, 25 | mpbid 231 | . 2 ⊢ ((( ⊕ ∈ (𝐺 GrpAct 𝑌) ∧ 𝐴 ∈ 𝑌) ∧ 𝑘 ∼ ℎ) → (𝑘 ⊕ 𝐴) = (ℎ ⊕ 𝐴)) |
27 | 1, 2, 8, 10, 11, 26 | qliftfund 8700 | 1 ⊢ (( ⊕ ∈ (𝐺 GrpAct 𝑌) ∧ 𝐴 ∈ 𝑌) → Fun 𝐹) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 ∧ w3a 1087 = wceq 1541 ∈ wcel 2106 {crab 3405 Vcvv 3443 ⊆ wss 3908 〈cop 4590 class class class wbr 5103 ↦ cmpt 5186 ran crn 5632 Fun wfun 6487 ‘cfv 6493 (class class class)co 7351 Er wer 8603 [cec 8604 Basecbs 17043 +gcplusg 17093 Grpcgrp 18708 invgcminusg 18709 SubGrpcsubg 18881 ~QG cqg 18883 GrpAct cga 19028 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 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 2708 ax-sep 5254 ax-nul 5261 ax-pow 5318 ax-pr 5382 ax-un 7664 ax-cnex 11065 ax-resscn 11066 ax-1cn 11067 ax-icn 11068 ax-addcl 11069 ax-addrcl 11070 ax-mulcl 11071 ax-mulrcl 11072 ax-mulcom 11073 ax-addass 11074 ax-mulass 11075 ax-distr 11076 ax-i2m1 11077 ax-1ne0 11078 ax-1rid 11079 ax-rnegex 11080 ax-rrecex 11081 ax-cnre 11082 ax-pre-lttri 11083 ax-pre-lttrn 11084 ax-pre-ltadd 11085 ax-pre-mulgt0 11086 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2815 df-nfc 2887 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rmo 3351 df-reu 3352 df-rab 3406 df-v 3445 df-sbc 3738 df-csb 3854 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-pss 3927 df-nul 4281 df-if 4485 df-pw 4560 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4864 df-iun 4954 df-br 5104 df-opab 5166 df-mpt 5187 df-tr 5221 df-id 5529 df-eprel 5535 df-po 5543 df-so 5544 df-fr 5586 df-we 5588 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6251 df-ord 6318 df-on 6319 df-lim 6320 df-suc 6321 df-iota 6445 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-riota 7307 df-ov 7354 df-oprab 7355 df-mpo 7356 df-om 7795 df-1st 7913 df-2nd 7914 df-frecs 8204 df-wrecs 8235 df-recs 8309 df-rdg 8348 df-er 8606 df-ec 8608 df-qs 8612 df-map 8725 df-en 8842 df-dom 8843 df-sdom 8844 df-pnf 11149 df-mnf 11150 df-xr 11151 df-ltxr 11152 df-le 11153 df-sub 11345 df-neg 11346 df-nn 12112 df-2 12174 df-sets 16996 df-slot 17014 df-ndx 17026 df-base 17044 df-ress 17073 df-plusg 17106 df-0g 17283 df-mgm 18457 df-sgrp 18506 df-mnd 18517 df-grp 18711 df-minusg 18712 df-subg 18884 df-eqg 18886 df-ga 19029 |
This theorem is referenced by: orbstaval 19051 orbsta 19052 |
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