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Mirrors > Home > MPE Home > Th. List > drnginvrl | Structured version Visualization version GIF version |
Description: Property of the multiplicative inverse in a division ring. (recid2 11344 analog). (Contributed by NM, 19-Apr-2014.) |
Ref | Expression |
---|---|
drnginvrl.b | ⊢ 𝐵 = (Base‘𝑅) |
drnginvrl.z | ⊢ 0 = (0g‘𝑅) |
drnginvrl.t | ⊢ · = (.r‘𝑅) |
drnginvrl.u | ⊢ 1 = (1r‘𝑅) |
drnginvrl.i | ⊢ 𝐼 = (invr‘𝑅) |
Ref | Expression |
---|---|
drnginvrl | ⊢ ((𝑅 ∈ DivRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) → ((𝐼‘𝑋) · 𝑋) = 1 ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | drnginvrl.b | . . . 4 ⊢ 𝐵 = (Base‘𝑅) | |
2 | eqid 2759 | . . . 4 ⊢ (Unit‘𝑅) = (Unit‘𝑅) | |
3 | drnginvrl.z | . . . 4 ⊢ 0 = (0g‘𝑅) | |
4 | 1, 2, 3 | drngunit 19568 | . . 3 ⊢ (𝑅 ∈ DivRing → (𝑋 ∈ (Unit‘𝑅) ↔ (𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ))) |
5 | drngring 19570 | . . . 4 ⊢ (𝑅 ∈ DivRing → 𝑅 ∈ Ring) | |
6 | drnginvrl.i | . . . . . 6 ⊢ 𝐼 = (invr‘𝑅) | |
7 | drnginvrl.t | . . . . . 6 ⊢ · = (.r‘𝑅) | |
8 | drnginvrl.u | . . . . . 6 ⊢ 1 = (1r‘𝑅) | |
9 | 2, 6, 7, 8 | unitlinv 19491 | . . . . 5 ⊢ ((𝑅 ∈ Ring ∧ 𝑋 ∈ (Unit‘𝑅)) → ((𝐼‘𝑋) · 𝑋) = 1 ) |
10 | 9 | ex 417 | . . . 4 ⊢ (𝑅 ∈ Ring → (𝑋 ∈ (Unit‘𝑅) → ((𝐼‘𝑋) · 𝑋) = 1 )) |
11 | 5, 10 | syl 17 | . . 3 ⊢ (𝑅 ∈ DivRing → (𝑋 ∈ (Unit‘𝑅) → ((𝐼‘𝑋) · 𝑋) = 1 )) |
12 | 4, 11 | sylbird 263 | . 2 ⊢ (𝑅 ∈ DivRing → ((𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) → ((𝐼‘𝑋) · 𝑋) = 1 )) |
13 | 12 | 3impib 1114 | 1 ⊢ ((𝑅 ∈ DivRing ∧ 𝑋 ∈ 𝐵 ∧ 𝑋 ≠ 0 ) → ((𝐼‘𝑋) · 𝑋) = 1 ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 400 ∧ w3a 1085 = wceq 1539 ∈ wcel 2112 ≠ wne 2952 ‘cfv 6336 (class class class)co 7151 Basecbs 16534 .rcmulr 16617 0gc0g 16764 1rcur 19312 Ringcrg 19358 Unitcui 19453 invrcinvr 19485 DivRingcdr 19563 |
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 1912 ax-6 1971 ax-7 2016 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2159 ax-12 2176 ax-ext 2730 ax-rep 5157 ax-sep 5170 ax-nul 5177 ax-pow 5235 ax-pr 5299 ax-un 7460 ax-cnex 10624 ax-resscn 10625 ax-1cn 10626 ax-icn 10627 ax-addcl 10628 ax-addrcl 10629 ax-mulcl 10630 ax-mulrcl 10631 ax-mulcom 10632 ax-addass 10633 ax-mulass 10634 ax-distr 10635 ax-i2m1 10636 ax-1ne0 10637 ax-1rid 10638 ax-rnegex 10639 ax-rrecex 10640 ax-cnre 10641 ax-pre-lttri 10642 ax-pre-lttrn 10643 ax-pre-ltadd 10644 ax-pre-mulgt0 10645 |
This theorem depends on definitions: df-bi 210 df-an 401 df-or 846 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2071 df-mo 2558 df-eu 2589 df-clab 2737 df-cleq 2751 df-clel 2831 df-nfc 2902 df-ne 2953 df-nel 3057 df-ral 3076 df-rex 3077 df-reu 3078 df-rmo 3079 df-rab 3080 df-v 3412 df-sbc 3698 df-csb 3807 df-dif 3862 df-un 3864 df-in 3866 df-ss 3876 df-pss 3878 df-nul 4227 df-if 4422 df-pw 4497 df-sn 4524 df-pr 4526 df-tp 4528 df-op 4530 df-uni 4800 df-iun 4886 df-br 5034 df-opab 5096 df-mpt 5114 df-tr 5140 df-id 5431 df-eprel 5436 df-po 5444 df-so 5445 df-fr 5484 df-we 5486 df-xp 5531 df-rel 5532 df-cnv 5533 df-co 5534 df-dm 5535 df-rn 5536 df-res 5537 df-ima 5538 df-pred 6127 df-ord 6173 df-on 6174 df-lim 6175 df-suc 6176 df-iota 6295 df-fun 6338 df-fn 6339 df-f 6340 df-f1 6341 df-fo 6342 df-f1o 6343 df-fv 6344 df-riota 7109 df-ov 7154 df-oprab 7155 df-mpo 7156 df-om 7581 df-tpos 7903 df-wrecs 7958 df-recs 8019 df-rdg 8057 df-er 8300 df-en 8529 df-dom 8530 df-sdom 8531 df-pnf 10708 df-mnf 10709 df-xr 10710 df-ltxr 10711 df-le 10712 df-sub 10903 df-neg 10904 df-nn 11668 df-2 11730 df-3 11731 df-ndx 16537 df-slot 16538 df-base 16540 df-sets 16541 df-ress 16542 df-plusg 16629 df-mulr 16630 df-0g 16766 df-mgm 17911 df-sgrp 17960 df-mnd 17971 df-grp 18165 df-minusg 18166 df-mgp 19301 df-ur 19313 df-ring 19360 df-oppr 19437 df-dvdsr 19455 df-unit 19456 df-invr 19486 df-drng 19565 |
This theorem is referenced by: drngmul0or 19584 lvecvs0or 19941 lssvs0or 19943 lvecinv 19946 lspsnvs 19947 lspfixed 19961 lspsolv 19976 drngnidl 20063 matunitlindflem1 35326 lfl1 36639 eqlkr3 36670 lkrlsp 36671 tendolinv 38674 dochkr1 39047 dochkr1OLDN 39048 lclkrlem2m 39088 hdmapip1 39485 hgmapvvlem2 39493 drnginvrld 39751 prjspnfv01 39951 |
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