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Mirrors > Home > MPE Home > Th. List > symgfix2 | Structured version Visualization version GIF version |
Description: If a permutation does not move a certain element of a set to a second element, there is a third element which is moved to the second element. (Contributed by AV, 2-Jan-2019.) |
Ref | Expression |
---|---|
symgfix2.p | ⊢ 𝑃 = (Base‘(SymGrp‘𝑁)) |
Ref | Expression |
---|---|
symgfix2 | ⊢ (𝐿 ∈ 𝑁 → (𝑄 ∈ (𝑃 ∖ {𝑞 ∈ 𝑃 ∣ (𝑞‘𝐾) = 𝐿}) → ∃𝑘 ∈ (𝑁 ∖ {𝐾})(𝑄‘𝑘) = 𝐿)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eldif 3897 | . . 3 ⊢ (𝑄 ∈ (𝑃 ∖ {𝑞 ∈ 𝑃 ∣ (𝑞‘𝐾) = 𝐿}) ↔ (𝑄 ∈ 𝑃 ∧ ¬ 𝑄 ∈ {𝑞 ∈ 𝑃 ∣ (𝑞‘𝐾) = 𝐿})) | |
2 | ianor 979 | . . . . 5 ⊢ (¬ (𝑄 ∈ 𝑃 ∧ (𝑄‘𝐾) = 𝐿) ↔ (¬ 𝑄 ∈ 𝑃 ∨ ¬ (𝑄‘𝐾) = 𝐿)) | |
3 | fveq1 6773 | . . . . . . 7 ⊢ (𝑞 = 𝑄 → (𝑞‘𝐾) = (𝑄‘𝐾)) | |
4 | 3 | eqeq1d 2740 | . . . . . 6 ⊢ (𝑞 = 𝑄 → ((𝑞‘𝐾) = 𝐿 ↔ (𝑄‘𝐾) = 𝐿)) |
5 | 4 | elrab 3624 | . . . . 5 ⊢ (𝑄 ∈ {𝑞 ∈ 𝑃 ∣ (𝑞‘𝐾) = 𝐿} ↔ (𝑄 ∈ 𝑃 ∧ (𝑄‘𝐾) = 𝐿)) |
6 | 2, 5 | xchnxbir 333 | . . . 4 ⊢ (¬ 𝑄 ∈ {𝑞 ∈ 𝑃 ∣ (𝑞‘𝐾) = 𝐿} ↔ (¬ 𝑄 ∈ 𝑃 ∨ ¬ (𝑄‘𝐾) = 𝐿)) |
7 | 6 | anbi2i 623 | . . 3 ⊢ ((𝑄 ∈ 𝑃 ∧ ¬ 𝑄 ∈ {𝑞 ∈ 𝑃 ∣ (𝑞‘𝐾) = 𝐿}) ↔ (𝑄 ∈ 𝑃 ∧ (¬ 𝑄 ∈ 𝑃 ∨ ¬ (𝑄‘𝐾) = 𝐿))) |
8 | 1, 7 | bitri 274 | . 2 ⊢ (𝑄 ∈ (𝑃 ∖ {𝑞 ∈ 𝑃 ∣ (𝑞‘𝐾) = 𝐿}) ↔ (𝑄 ∈ 𝑃 ∧ (¬ 𝑄 ∈ 𝑃 ∨ ¬ (𝑄‘𝐾) = 𝐿))) |
9 | pm2.21 123 | . . . . 5 ⊢ (¬ 𝑄 ∈ 𝑃 → (𝑄 ∈ 𝑃 → (𝐿 ∈ 𝑁 → ∃𝑘 ∈ (𝑁 ∖ {𝐾})(𝑄‘𝑘) = 𝐿))) | |
10 | symgfix2.p | . . . . . . 7 ⊢ 𝑃 = (Base‘(SymGrp‘𝑁)) | |
11 | 10 | symgmov2 18995 | . . . . . 6 ⊢ (𝑄 ∈ 𝑃 → ∀𝑙 ∈ 𝑁 ∃𝑘 ∈ 𝑁 (𝑄‘𝑘) = 𝑙) |
12 | eqeq2 2750 | . . . . . . . . . . 11 ⊢ (𝑙 = 𝐿 → ((𝑄‘𝑘) = 𝑙 ↔ (𝑄‘𝑘) = 𝐿)) | |
13 | 12 | rexbidv 3226 | . . . . . . . . . 10 ⊢ (𝑙 = 𝐿 → (∃𝑘 ∈ 𝑁 (𝑄‘𝑘) = 𝑙 ↔ ∃𝑘 ∈ 𝑁 (𝑄‘𝑘) = 𝐿)) |
14 | 13 | rspcva 3559 | . . . . . . . . 9 ⊢ ((𝐿 ∈ 𝑁 ∧ ∀𝑙 ∈ 𝑁 ∃𝑘 ∈ 𝑁 (𝑄‘𝑘) = 𝑙) → ∃𝑘 ∈ 𝑁 (𝑄‘𝑘) = 𝐿) |
15 | eqeq2 2750 | . . . . . . . . . . . . . . . 16 ⊢ (𝐿 = (𝑄‘𝑘) → ((𝑄‘𝐾) = 𝐿 ↔ (𝑄‘𝐾) = (𝑄‘𝑘))) | |
16 | 15 | eqcoms 2746 | . . . . . . . . . . . . . . 15 ⊢ ((𝑄‘𝑘) = 𝐿 → ((𝑄‘𝐾) = 𝐿 ↔ (𝑄‘𝐾) = (𝑄‘𝑘))) |
17 | 16 | notbid 318 | . . . . . . . . . . . . . 14 ⊢ ((𝑄‘𝑘) = 𝐿 → (¬ (𝑄‘𝐾) = 𝐿 ↔ ¬ (𝑄‘𝐾) = (𝑄‘𝑘))) |
18 | fveq2 6774 | . . . . . . . . . . . . . . . 16 ⊢ (𝐾 = 𝑘 → (𝑄‘𝐾) = (𝑄‘𝑘)) | |
19 | 18 | eqcoms 2746 | . . . . . . . . . . . . . . 15 ⊢ (𝑘 = 𝐾 → (𝑄‘𝐾) = (𝑄‘𝑘)) |
20 | 19 | necon3bi 2970 | . . . . . . . . . . . . . 14 ⊢ (¬ (𝑄‘𝐾) = (𝑄‘𝑘) → 𝑘 ≠ 𝐾) |
21 | 17, 20 | syl6bi 252 | . . . . . . . . . . . . 13 ⊢ ((𝑄‘𝑘) = 𝐿 → (¬ (𝑄‘𝐾) = 𝐿 → 𝑘 ≠ 𝐾)) |
22 | 21 | com12 32 | . . . . . . . . . . . 12 ⊢ (¬ (𝑄‘𝐾) = 𝐿 → ((𝑄‘𝑘) = 𝐿 → 𝑘 ≠ 𝐾)) |
23 | 22 | pm4.71rd 563 | . . . . . . . . . . 11 ⊢ (¬ (𝑄‘𝐾) = 𝐿 → ((𝑄‘𝑘) = 𝐿 ↔ (𝑘 ≠ 𝐾 ∧ (𝑄‘𝑘) = 𝐿))) |
24 | 23 | rexbidv 3226 | . . . . . . . . . 10 ⊢ (¬ (𝑄‘𝐾) = 𝐿 → (∃𝑘 ∈ 𝑁 (𝑄‘𝑘) = 𝐿 ↔ ∃𝑘 ∈ 𝑁 (𝑘 ≠ 𝐾 ∧ (𝑄‘𝑘) = 𝐿))) |
25 | rexdifsn 4727 | . . . . . . . . . 10 ⊢ (∃𝑘 ∈ (𝑁 ∖ {𝐾})(𝑄‘𝑘) = 𝐿 ↔ ∃𝑘 ∈ 𝑁 (𝑘 ≠ 𝐾 ∧ (𝑄‘𝑘) = 𝐿)) | |
26 | 24, 25 | bitr4di 289 | . . . . . . . . 9 ⊢ (¬ (𝑄‘𝐾) = 𝐿 → (∃𝑘 ∈ 𝑁 (𝑄‘𝑘) = 𝐿 ↔ ∃𝑘 ∈ (𝑁 ∖ {𝐾})(𝑄‘𝑘) = 𝐿)) |
27 | 14, 26 | syl5ibcom 244 | . . . . . . . 8 ⊢ ((𝐿 ∈ 𝑁 ∧ ∀𝑙 ∈ 𝑁 ∃𝑘 ∈ 𝑁 (𝑄‘𝑘) = 𝑙) → (¬ (𝑄‘𝐾) = 𝐿 → ∃𝑘 ∈ (𝑁 ∖ {𝐾})(𝑄‘𝑘) = 𝐿)) |
28 | 27 | ex 413 | . . . . . . 7 ⊢ (𝐿 ∈ 𝑁 → (∀𝑙 ∈ 𝑁 ∃𝑘 ∈ 𝑁 (𝑄‘𝑘) = 𝑙 → (¬ (𝑄‘𝐾) = 𝐿 → ∃𝑘 ∈ (𝑁 ∖ {𝐾})(𝑄‘𝑘) = 𝐿))) |
29 | 28 | com13 88 | . . . . . 6 ⊢ (¬ (𝑄‘𝐾) = 𝐿 → (∀𝑙 ∈ 𝑁 ∃𝑘 ∈ 𝑁 (𝑄‘𝑘) = 𝑙 → (𝐿 ∈ 𝑁 → ∃𝑘 ∈ (𝑁 ∖ {𝐾})(𝑄‘𝑘) = 𝐿))) |
30 | 11, 29 | syl5 34 | . . . . 5 ⊢ (¬ (𝑄‘𝐾) = 𝐿 → (𝑄 ∈ 𝑃 → (𝐿 ∈ 𝑁 → ∃𝑘 ∈ (𝑁 ∖ {𝐾})(𝑄‘𝑘) = 𝐿))) |
31 | 9, 30 | jaoi 854 | . . . 4 ⊢ ((¬ 𝑄 ∈ 𝑃 ∨ ¬ (𝑄‘𝐾) = 𝐿) → (𝑄 ∈ 𝑃 → (𝐿 ∈ 𝑁 → ∃𝑘 ∈ (𝑁 ∖ {𝐾})(𝑄‘𝑘) = 𝐿))) |
32 | 31 | com13 88 | . . 3 ⊢ (𝐿 ∈ 𝑁 → (𝑄 ∈ 𝑃 → ((¬ 𝑄 ∈ 𝑃 ∨ ¬ (𝑄‘𝐾) = 𝐿) → ∃𝑘 ∈ (𝑁 ∖ {𝐾})(𝑄‘𝑘) = 𝐿))) |
33 | 32 | impd 411 | . 2 ⊢ (𝐿 ∈ 𝑁 → ((𝑄 ∈ 𝑃 ∧ (¬ 𝑄 ∈ 𝑃 ∨ ¬ (𝑄‘𝐾) = 𝐿)) → ∃𝑘 ∈ (𝑁 ∖ {𝐾})(𝑄‘𝑘) = 𝐿)) |
34 | 8, 33 | syl5bi 241 | 1 ⊢ (𝐿 ∈ 𝑁 → (𝑄 ∈ (𝑃 ∖ {𝑞 ∈ 𝑃 ∣ (𝑞‘𝐾) = 𝐿}) → ∃𝑘 ∈ (𝑁 ∖ {𝐾})(𝑄‘𝑘) = 𝐿)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 396 ∨ wo 844 = wceq 1539 ∈ wcel 2106 ≠ wne 2943 ∀wral 3064 ∃wrex 3065 {crab 3068 ∖ cdif 3884 {csn 4561 ‘cfv 6433 Basecbs 16912 SymGrpcsymg 18974 |
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-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 |
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-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-tp 4566 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-1st 7831 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-1o 8297 df-er 8498 df-map 8617 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-2 12036 df-3 12037 df-4 12038 df-5 12039 df-6 12040 df-7 12041 df-8 12042 df-9 12043 df-n0 12234 df-z 12320 df-uz 12583 df-fz 13240 df-struct 16848 df-sets 16865 df-slot 16883 df-ndx 16895 df-base 16913 df-ress 16942 df-plusg 16975 df-tset 16981 df-efmnd 18508 df-symg 18975 |
This theorem is referenced by: (None) |
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