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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 486 | . . 3 ⊢ ((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) → 𝑅 ∈ Grp) | |
2 | zringgrp 20394 | . . 3 ⊢ ℤring ∈ Grp | |
3 | 1, 2 | jctil 523 | . 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 18463 | . . . . . 6 ⊢ ((𝑅 ∈ Grp ∧ 𝑛 ∈ ℤ ∧ 1 ∈ 𝐵) → (𝑛 · 1 ) ∈ 𝐵) |
7 | 6 | 3expa 1120 | . . . . 5 ⊢ (((𝑅 ∈ Grp ∧ 𝑛 ∈ ℤ) ∧ 1 ∈ 𝐵) → (𝑛 · 1 ) ∈ 𝐵) |
8 | 7 | an32s 652 | . . . 4 ⊢ (((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) ∧ 𝑛 ∈ ℤ) → (𝑛 · 1 ) ∈ 𝐵) |
9 | mulgghm2.f | . . . 4 ⊢ 𝐹 = (𝑛 ∈ ℤ ↦ (𝑛 · 1 )) | |
10 | 8, 9 | fmptd 6909 | . . 3 ⊢ ((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) → 𝐹:ℤ⟶𝐵) |
11 | eqid 2736 | . . . . . . . . 9 ⊢ (+g‘𝑅) = (+g‘𝑅) | |
12 | 4, 5, 11 | mulgdir 18477 | . . . . . . . 8 ⊢ ((𝑅 ∈ Grp ∧ (𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ ∧ 1 ∈ 𝐵)) → ((𝑥 + 𝑦) · 1 ) = ((𝑥 · 1 )(+g‘𝑅)(𝑦 · 1 ))) |
13 | 12 | 3exp2 1356 | . . . . . . 7 ⊢ (𝑅 ∈ Grp → (𝑥 ∈ ℤ → (𝑦 ∈ ℤ → ( 1 ∈ 𝐵 → ((𝑥 + 𝑦) · 1 ) = ((𝑥 · 1 )(+g‘𝑅)(𝑦 · 1 )))))) |
14 | 13 | imp42 430 | . . . . . 6 ⊢ (((𝑅 ∈ Grp ∧ (𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ)) ∧ 1 ∈ 𝐵) → ((𝑥 + 𝑦) · 1 ) = ((𝑥 · 1 )(+g‘𝑅)(𝑦 · 1 ))) |
15 | 14 | an32s 652 | . . . . 5 ⊢ (((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) ∧ (𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ)) → ((𝑥 + 𝑦) · 1 ) = ((𝑥 · 1 )(+g‘𝑅)(𝑦 · 1 ))) |
16 | zaddcl 12182 | . . . . . . 7 ⊢ ((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) → (𝑥 + 𝑦) ∈ ℤ) | |
17 | 16 | adantl 485 | . . . . . 6 ⊢ (((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) ∧ (𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ)) → (𝑥 + 𝑦) ∈ ℤ) |
18 | oveq1 7198 | . . . . . . 7 ⊢ (𝑛 = (𝑥 + 𝑦) → (𝑛 · 1 ) = ((𝑥 + 𝑦) · 1 )) | |
19 | ovex 7224 | . . . . . . 7 ⊢ ((𝑥 + 𝑦) · 1 ) ∈ V | |
20 | 18, 9, 19 | fvmpt 6796 | . . . . . 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 7198 | . . . . . . . 8 ⊢ (𝑛 = 𝑥 → (𝑛 · 1 ) = (𝑥 · 1 )) | |
23 | ovex 7224 | . . . . . . . 8 ⊢ (𝑥 · 1 ) ∈ V | |
24 | 22, 9, 23 | fvmpt 6796 | . . . . . . 7 ⊢ (𝑥 ∈ ℤ → (𝐹‘𝑥) = (𝑥 · 1 )) |
25 | oveq1 7198 | . . . . . . . 8 ⊢ (𝑛 = 𝑦 → (𝑛 · 1 ) = (𝑦 · 1 )) | |
26 | ovex 7224 | . . . . . . . 8 ⊢ (𝑦 · 1 ) ∈ V | |
27 | 25, 9, 26 | fvmpt 6796 | . . . . . . 7 ⊢ (𝑦 ∈ ℤ → (𝐹‘𝑦) = (𝑦 · 1 )) |
28 | 24, 27 | oveqan12d 7210 | . . . . . 6 ⊢ ((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) → ((𝐹‘𝑥)(+g‘𝑅)(𝐹‘𝑦)) = ((𝑥 · 1 )(+g‘𝑅)(𝑦 · 1 ))) |
29 | 28 | adantl 485 | . . . . 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 2781 | . . . 4 ⊢ (((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) ∧ (𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ)) → (𝐹‘(𝑥 + 𝑦)) = ((𝐹‘𝑥)(+g‘𝑅)(𝐹‘𝑦))) |
31 | 30 | ralrimivva 3102 | . . 3 ⊢ ((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) → ∀𝑥 ∈ ℤ ∀𝑦 ∈ ℤ (𝐹‘(𝑥 + 𝑦)) = ((𝐹‘𝑥)(+g‘𝑅)(𝐹‘𝑦))) |
32 | 10, 31 | jca 515 | . 2 ⊢ ((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) → (𝐹:ℤ⟶𝐵 ∧ ∀𝑥 ∈ ℤ ∀𝑦 ∈ ℤ (𝐹‘(𝑥 + 𝑦)) = ((𝐹‘𝑥)(+g‘𝑅)(𝐹‘𝑦)))) |
33 | zringbas 20395 | . . 3 ⊢ ℤ = (Base‘ℤring) | |
34 | zringplusg 20396 | . . 3 ⊢ + = (+g‘ℤring) | |
35 | 33, 4, 34, 11 | isghm 18576 | . 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 586 | 1 ⊢ ((𝑅 ∈ Grp ∧ 1 ∈ 𝐵) → 𝐹 ∈ (ℤring GrpHom 𝑅)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 = wceq 1543 ∈ wcel 2112 ∀wral 3051 ↦ cmpt 5120 ⟶wf 6354 ‘cfv 6358 (class class class)co 7191 + caddc 10697 ℤcz 12141 Basecbs 16666 +gcplusg 16749 Grpcgrp 18319 .gcmg 18442 GrpHom cghm 18573 ℤringzring 20389 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2018 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2160 ax-12 2177 ax-ext 2708 ax-rep 5164 ax-sep 5177 ax-nul 5184 ax-pow 5243 ax-pr 5307 ax-un 7501 ax-cnex 10750 ax-resscn 10751 ax-1cn 10752 ax-icn 10753 ax-addcl 10754 ax-addrcl 10755 ax-mulcl 10756 ax-mulrcl 10757 ax-mulcom 10758 ax-addass 10759 ax-mulass 10760 ax-distr 10761 ax-i2m1 10762 ax-1ne0 10763 ax-1rid 10764 ax-rnegex 10765 ax-rrecex 10766 ax-cnre 10767 ax-pre-lttri 10768 ax-pre-lttrn 10769 ax-pre-ltadd 10770 ax-pre-mulgt0 10771 ax-addf 10773 ax-mulf 10774 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2073 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2728 df-clel 2809 df-nfc 2879 df-ne 2933 df-nel 3037 df-ral 3056 df-rex 3057 df-reu 3058 df-rmo 3059 df-rab 3060 df-v 3400 df-sbc 3684 df-csb 3799 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-pss 3872 df-nul 4224 df-if 4426 df-pw 4501 df-sn 4528 df-pr 4530 df-tp 4532 df-op 4534 df-uni 4806 df-iun 4892 df-br 5040 df-opab 5102 df-mpt 5121 df-tr 5147 df-id 5440 df-eprel 5445 df-po 5453 df-so 5454 df-fr 5494 df-we 5496 df-xp 5542 df-rel 5543 df-cnv 5544 df-co 5545 df-dm 5546 df-rn 5547 df-res 5548 df-ima 5549 df-pred 6140 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6316 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-fv 6366 df-riota 7148 df-ov 7194 df-oprab 7195 df-mpo 7196 df-om 7623 df-1st 7739 df-2nd 7740 df-wrecs 8025 df-recs 8086 df-rdg 8124 df-1o 8180 df-er 8369 df-en 8605 df-dom 8606 df-sdom 8607 df-fin 8608 df-pnf 10834 df-mnf 10835 df-xr 10836 df-ltxr 10837 df-le 10838 df-sub 11029 df-neg 11030 df-nn 11796 df-2 11858 df-3 11859 df-4 11860 df-5 11861 df-6 11862 df-7 11863 df-8 11864 df-9 11865 df-n0 12056 df-z 12142 df-dec 12259 df-uz 12404 df-fz 13061 df-seq 13540 df-struct 16668 df-ndx 16669 df-slot 16670 df-base 16672 df-sets 16673 df-ress 16674 df-plusg 16762 df-mulr 16763 df-starv 16764 df-tset 16768 df-ple 16769 df-ds 16771 df-unif 16772 df-0g 16900 df-mgm 18068 df-sgrp 18117 df-mnd 18128 df-grp 18322 df-minusg 18323 df-mulg 18443 df-subg 18494 df-ghm 18574 df-cmn 19126 df-mgp 19459 df-ur 19471 df-ring 19518 df-cring 19519 df-subrg 19752 df-cnfld 20318 df-zring 20390 |
This theorem is referenced by: mulgrhm 20418 frgpcyg 20492 |
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