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Mirrors > Home > MPE Home > Th. List > mulgghm2 | Structured version Visualization version GIF version |
Description: The powers of a group element give a homomorphism from ℤ to a group. (Contributed by Mario Carneiro, 13-Jun-2015.) (Revised by AV, 12-Jun-2019.) |
Ref | Expression |
---|---|
mulgghm2.m | ⊢ · = (.g‘𝑅) |
mulgghm2.f | ⊢ 𝐹 = (𝑛 ∈ ℤ ↦ (𝑛 · 1 )) |
mulgghm2.b | ⊢ 𝐵 = (Base‘𝑅) |
Ref | Expression |
---|---|
mulgghm2 | ⊢ ((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) → 𝐹 ∈ (ℤring GrpHom 𝑅)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpl 482 | . . 3 ⊢ ((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) → 𝑅 ∈ Grp) | |
2 | zringgrp 20587 | . . 3 ⊢ ℤring ∈ Grp | |
3 | 1, 2 | jctil 519 | . 2 ⊢ ((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) → (ℤring ∈ Grp ∧ 𝑅 ∈ Grp)) |
4 | mulgghm2.b | . . . . . . 7 ⊢ 𝐵 = (Base‘𝑅) | |
5 | mulgghm2.m | . . . . . . 7 ⊢ · = (.g‘𝑅) | |
6 | 4, 5 | mulgcl 18636 | . . . . . 6 ⊢ ((𝑅 ∈ Grp ∧ 𝑛 ∈ ℤ ∧ 1 ∈ 𝐵) → (𝑛 · 1 ) ∈ 𝐵) |
7 | 6 | 3expa 1116 | . . . . 5 ⊢ (((𝑅 ∈ Grp ∧ 𝑛 ∈ ℤ) ∧ 1 ∈ 𝐵) → (𝑛 · 1 ) ∈ 𝐵) |
8 | 7 | an32s 648 | . . . 4 ⊢ (((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) ∧ 𝑛 ∈ ℤ) → (𝑛 · 1 ) ∈ 𝐵) |
9 | mulgghm2.f | . . . 4 ⊢ 𝐹 = (𝑛 ∈ ℤ ↦ (𝑛 · 1 )) | |
10 | 8, 9 | fmptd 6970 | . . 3 ⊢ ((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) → 𝐹:ℤ⟶𝐵) |
11 | eqid 2738 | . . . . . . . . 9 ⊢ (+g‘𝑅) = (+g‘𝑅) | |
12 | 4, 5, 11 | mulgdir 18650 | . . . . . . . 8 ⊢ ((𝑅 ∈ Grp ∧ (𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ ∧ 1 ∈ 𝐵)) → ((𝑥 + 𝑦) · 1 ) = ((𝑥 · 1 )(+g‘𝑅)(𝑦 · 1 ))) |
13 | 12 | 3exp2 1352 | . . . . . . 7 ⊢ (𝑅 ∈ Grp → (𝑥 ∈ ℤ → (𝑦 ∈ ℤ → ( 1 ∈ 𝐵 → ((𝑥 + 𝑦) · 1 ) = ((𝑥 · 1 )(+g‘𝑅)(𝑦 · 1 )))))) |
14 | 13 | imp42 426 | . . . . . 6 ⊢ (((𝑅 ∈ Grp ∧ (𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ)) ∧ 1 ∈ 𝐵) → ((𝑥 + 𝑦) · 1 ) = ((𝑥 · 1 )(+g‘𝑅)(𝑦 · 1 ))) |
15 | 14 | an32s 648 | . . . . 5 ⊢ (((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) ∧ (𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ)) → ((𝑥 + 𝑦) · 1 ) = ((𝑥 · 1 )(+g‘𝑅)(𝑦 · 1 ))) |
16 | zaddcl 12290 | . . . . . . 7 ⊢ ((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) → (𝑥 + 𝑦) ∈ ℤ) | |
17 | 16 | adantl 481 | . . . . . 6 ⊢ (((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) ∧ (𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ)) → (𝑥 + 𝑦) ∈ ℤ) |
18 | oveq1 7262 | . . . . . . 7 ⊢ (𝑛 = (𝑥 + 𝑦) → (𝑛 · 1 ) = ((𝑥 + 𝑦) · 1 )) | |
19 | ovex 7288 | . . . . . . 7 ⊢ ((𝑥 + 𝑦) · 1 ) ∈ V | |
20 | 18, 9, 19 | fvmpt 6857 | . . . . . 6 ⊢ ((𝑥 + 𝑦) ∈ ℤ → (𝐹‘(𝑥 + 𝑦)) = ((𝑥 + 𝑦) · 1 )) |
21 | 17, 20 | syl 17 | . . . . 5 ⊢ (((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) ∧ (𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ)) → (𝐹‘(𝑥 + 𝑦)) = ((𝑥 + 𝑦) · 1 )) |
22 | oveq1 7262 | . . . . . . . 8 ⊢ (𝑛 = 𝑥 → (𝑛 · 1 ) = (𝑥 · 1 )) | |
23 | ovex 7288 | . . . . . . . 8 ⊢ (𝑥 · 1 ) ∈ V | |
24 | 22, 9, 23 | fvmpt 6857 | . . . . . . 7 ⊢ (𝑥 ∈ ℤ → (𝐹‘𝑥) = (𝑥 · 1 )) |
25 | oveq1 7262 | . . . . . . . 8 ⊢ (𝑛 = 𝑦 → (𝑛 · 1 ) = (𝑦 · 1 )) | |
26 | ovex 7288 | . . . . . . . 8 ⊢ (𝑦 · 1 ) ∈ V | |
27 | 25, 9, 26 | fvmpt 6857 | . . . . . . 7 ⊢ (𝑦 ∈ ℤ → (𝐹‘𝑦) = (𝑦 · 1 )) |
28 | 24, 27 | oveqan12d 7274 | . . . . . 6 ⊢ ((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) → ((𝐹‘𝑥)(+g‘𝑅)(𝐹‘𝑦)) = ((𝑥 · 1 )(+g‘𝑅)(𝑦 · 1 ))) |
29 | 28 | adantl 481 | . . . . 5 ⊢ (((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) ∧ (𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ)) → ((𝐹‘𝑥)(+g‘𝑅)(𝐹‘𝑦)) = ((𝑥 · 1 )(+g‘𝑅)(𝑦 · 1 ))) |
30 | 15, 21, 29 | 3eqtr4d 2788 | . . . 4 ⊢ (((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) ∧ (𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ)) → (𝐹‘(𝑥 + 𝑦)) = ((𝐹‘𝑥)(+g‘𝑅)(𝐹‘𝑦))) |
31 | 30 | ralrimivva 3114 | . . 3 ⊢ ((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) → ∀𝑥 ∈ ℤ ∀𝑦 ∈ ℤ (𝐹‘(𝑥 + 𝑦)) = ((𝐹‘𝑥)(+g‘𝑅)(𝐹‘𝑦))) |
32 | 10, 31 | jca 511 | . 2 ⊢ ((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) → (𝐹:ℤ⟶𝐵 ∧ ∀𝑥 ∈ ℤ ∀𝑦 ∈ ℤ (𝐹‘(𝑥 + 𝑦)) = ((𝐹‘𝑥)(+g‘𝑅)(𝐹‘𝑦)))) |
33 | zringbas 20588 | . . 3 ⊢ ℤ = (Base‘ℤring) | |
34 | zringplusg 20589 | . . 3 ⊢ + = (+g‘ℤring) | |
35 | 33, 4, 34, 11 | isghm 18749 | . 2 ⊢ (𝐹 ∈ (ℤring GrpHom 𝑅) ↔ ((ℤring ∈ Grp ∧ 𝑅 ∈ Grp) ∧ (𝐹:ℤ⟶𝐵 ∧ ∀𝑥 ∈ ℤ ∀𝑦 ∈ ℤ (𝐹‘(𝑥 + 𝑦)) = ((𝐹‘𝑥)(+g‘𝑅)(𝐹‘𝑦))))) |
36 | 3, 32, 35 | sylanbrc 582 | 1 ⊢ ((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) → 𝐹 ∈ (ℤring GrpHom 𝑅)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 = wceq 1539 ∈ wcel 2108 ∀wral 3063 ↦ cmpt 5153 ⟶wf 6414 ‘cfv 6418 (class class class)co 7255 + caddc 10805 ℤcz 12249 Basecbs 16840 +gcplusg 16888 Grpcgrp 18492 .gcmg 18615 GrpHom cghm 18746 ℤringzring 20582 |
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-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-addf 10881 ax-mulf 10882 |
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-iun 4923 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-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-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-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-nn 11904 df-2 11966 df-3 11967 df-4 11968 df-5 11969 df-6 11970 df-7 11971 df-8 11972 df-9 11973 df-n0 12164 df-z 12250 df-dec 12367 df-uz 12512 df-fz 13169 df-seq 13650 df-struct 16776 df-sets 16793 df-slot 16811 df-ndx 16823 df-base 16841 df-ress 16868 df-plusg 16901 df-mulr 16902 df-starv 16903 df-tset 16907 df-ple 16908 df-ds 16910 df-unif 16911 df-0g 17069 df-mgm 18241 df-sgrp 18290 df-mnd 18301 df-grp 18495 df-minusg 18496 df-mulg 18616 df-subg 18667 df-ghm 18747 df-cmn 19303 df-mgp 19636 df-ur 19653 df-ring 19700 df-cring 19701 df-subrg 19937 df-cnfld 20511 df-zring 20583 |
This theorem is referenced by: mulgrhm 20611 frgpcyg 20693 |
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