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Mathbox for Alexander van der Vekens |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > idrnghm | Structured version Visualization version GIF version |
Description: The identity homomorphism on a non-unital ring. (Contributed by AV, 27-Feb-2020.) |
Ref | Expression |
---|---|
idrnghm.b | ⊢ 𝐵 = (Base‘𝑅) |
Ref | Expression |
---|---|
idrnghm | ⊢ (𝑅 ∈ Rng → ( I ↾ 𝐵) ∈ (𝑅 RngHomo 𝑅)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | id 22 | . . 3 ⊢ (𝑅 ∈ Rng → 𝑅 ∈ Rng) | |
2 | 1, 1 | jca 515 | . 2 ⊢ (𝑅 ∈ Rng → (𝑅 ∈ Rng ∧ 𝑅 ∈ Rng)) |
3 | rngabl 44501 | . . . 4 ⊢ (𝑅 ∈ Rng → 𝑅 ∈ Abel) | |
4 | ablgrp 18903 | . . . 4 ⊢ (𝑅 ∈ Abel → 𝑅 ∈ Grp) | |
5 | idrnghm.b | . . . . 5 ⊢ 𝐵 = (Base‘𝑅) | |
6 | 5 | idghm 18365 | . . . 4 ⊢ (𝑅 ∈ Grp → ( I ↾ 𝐵) ∈ (𝑅 GrpHom 𝑅)) |
7 | 3, 4, 6 | 3syl 18 | . . 3 ⊢ (𝑅 ∈ Rng → ( I ↾ 𝐵) ∈ (𝑅 GrpHom 𝑅)) |
8 | eqid 2798 | . . . . 5 ⊢ (mulGrp‘𝑅) = (mulGrp‘𝑅) | |
9 | 8 | rngmgp 44502 | . . . 4 ⊢ (𝑅 ∈ Rng → (mulGrp‘𝑅) ∈ Smgrp) |
10 | sgrpmgm 17898 | . . . 4 ⊢ ((mulGrp‘𝑅) ∈ Smgrp → (mulGrp‘𝑅) ∈ Mgm) | |
11 | 8, 5 | mgpbas 19238 | . . . . 5 ⊢ 𝐵 = (Base‘(mulGrp‘𝑅)) |
12 | 11 | idmgmhm 44408 | . . . 4 ⊢ ((mulGrp‘𝑅) ∈ Mgm → ( I ↾ 𝐵) ∈ ((mulGrp‘𝑅) MgmHom (mulGrp‘𝑅))) |
13 | 9, 10, 12 | 3syl 18 | . . 3 ⊢ (𝑅 ∈ Rng → ( I ↾ 𝐵) ∈ ((mulGrp‘𝑅) MgmHom (mulGrp‘𝑅))) |
14 | 7, 13 | jca 515 | . 2 ⊢ (𝑅 ∈ Rng → (( I ↾ 𝐵) ∈ (𝑅 GrpHom 𝑅) ∧ ( I ↾ 𝐵) ∈ ((mulGrp‘𝑅) MgmHom (mulGrp‘𝑅)))) |
15 | 8, 8 | isrnghmmul 44517 | . 2 ⊢ (( I ↾ 𝐵) ∈ (𝑅 RngHomo 𝑅) ↔ ((𝑅 ∈ Rng ∧ 𝑅 ∈ Rng) ∧ (( I ↾ 𝐵) ∈ (𝑅 GrpHom 𝑅) ∧ ( I ↾ 𝐵) ∈ ((mulGrp‘𝑅) MgmHom (mulGrp‘𝑅))))) |
16 | 2, 14, 15 | sylanbrc 586 | 1 ⊢ (𝑅 ∈ Rng → ( I ↾ 𝐵) ∈ (𝑅 RngHomo 𝑅)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 = wceq 1538 ∈ wcel 2111 I cid 5424 ↾ cres 5521 ‘cfv 6324 (class class class)co 7135 Basecbs 16475 Mgmcmgm 17842 Smgrpcsgrp 17892 Grpcgrp 18095 GrpHom cghm 18347 Abelcabl 18899 mulGrpcmgp 19232 MgmHom cmgmhm 44397 Rngcrng 44498 RngHomo crngh 44509 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-rep 5154 ax-sep 5167 ax-nul 5174 ax-pow 5231 ax-pr 5295 ax-un 7441 ax-cnex 10582 ax-resscn 10583 ax-1cn 10584 ax-icn 10585 ax-addcl 10586 ax-addrcl 10587 ax-mulcl 10588 ax-mulrcl 10589 ax-mulcom 10590 ax-addass 10591 ax-mulass 10592 ax-distr 10593 ax-i2m1 10594 ax-1ne0 10595 ax-1rid 10596 ax-rnegex 10597 ax-rrecex 10598 ax-cnre 10599 ax-pre-lttri 10600 ax-pre-lttrn 10601 ax-pre-ltadd 10602 ax-pre-mulgt0 10603 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3or 1085 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ne 2988 df-nel 3092 df-ral 3111 df-rex 3112 df-reu 3113 df-rab 3115 df-v 3443 df-sbc 3721 df-csb 3829 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-pss 3900 df-nul 4244 df-if 4426 df-pw 4499 df-sn 4526 df-pr 4528 df-tp 4530 df-op 4532 df-uni 4801 df-iun 4883 df-br 5031 df-opab 5093 df-mpt 5111 df-tr 5137 df-id 5425 df-eprel 5430 df-po 5438 df-so 5439 df-fr 5478 df-we 5480 df-xp 5525 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-rn 5530 df-res 5531 df-ima 5532 df-pred 6116 df-ord 6162 df-on 6163 df-lim 6164 df-suc 6165 df-iota 6283 df-fun 6326 df-fn 6327 df-f 6328 df-f1 6329 df-fo 6330 df-f1o 6331 df-fv 6332 df-riota 7093 df-ov 7138 df-oprab 7139 df-mpo 7140 df-om 7561 df-wrecs 7930 df-recs 7991 df-rdg 8029 df-er 8272 df-map 8391 df-en 8493 df-dom 8494 df-sdom 8495 df-pnf 10666 df-mnf 10667 df-xr 10668 df-ltxr 10669 df-le 10670 df-sub 10861 df-neg 10862 df-nn 11626 df-2 11688 df-ndx 16478 df-slot 16479 df-base 16481 df-sets 16482 df-plusg 16570 df-mgm 17844 df-sgrp 17893 df-mnd 17904 df-grp 18098 df-ghm 18348 df-abl 18901 df-mgp 19233 df-mgmhm 44399 df-rng0 44499 df-rnghomo 44511 |
This theorem is referenced by: rnghmsubcsetclem1 44599 rngccatidALTV 44613 |
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