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| Mirrors > Home > MPE Home > Th. List > ringinvcl | Structured version Visualization version GIF version | ||
| Description: The inverse of a unit is an element of the ring. (Contributed by Mario Carneiro, 2-Dec-2014.) |
| Ref | Expression |
|---|---|
| unitinvcl.1 | ⊢ 𝑈 = (Unit‘𝑅) |
| unitinvcl.2 | ⊢ 𝐼 = (invr‘𝑅) |
| ringinvcl.3 | ⊢ 𝐵 = (Base‘𝑅) |
| Ref | Expression |
|---|---|
| ringinvcl | ⊢ ((𝑅 ∈ Ring ∧ 𝑋 ∈ 𝑈) → (𝐼‘𝑋) ∈ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | unitinvcl.1 | . . 3 ⊢ 𝑈 = (Unit‘𝑅) | |
| 2 | unitinvcl.2 | . . 3 ⊢ 𝐼 = (invr‘𝑅) | |
| 3 | 1, 2 | unitinvcl 20627 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 𝑋 ∈ 𝑈) → (𝐼‘𝑋) ∈ 𝑈) |
| 4 | ringinvcl.3 | . . 3 ⊢ 𝐵 = (Base‘𝑅) | |
| 5 | 4, 1 | unitcl 20612 | . 2 ⊢ ((𝐼‘𝑋) ∈ 𝑈 → (𝐼‘𝑋) ∈ 𝐵) |
| 6 | 3, 5 | syl 18 | 1 ⊢ ((𝑅 ∈ Ring ∧ 𝑋 ∈ 𝑈) → (𝐼‘𝑋) ∈ 𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1569 ∈ wcel 2144 ‘cfv 6541 Basecbs 17394 Ringcrg 20466 Unitcui 20592 invrcinvr 20624 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7753 ax-cnex 11261 ax-resscn 11262 ax-1cn 11263 ax-icn 11264 ax-addcl 11265 ax-addrcl 11266 ax-mulcl 11267 ax-mulrcl 11268 ax-mulcom 11269 ax-addass 11270 ax-mulass 11271 ax-distr 11272 ax-i2m1 11273 ax-1ne0 11274 ax-1rid 11275 ax-rnegex 11276 ax-rrecex 11277 ax-cnre 11278 ax-pre-lttri 11279 ax-pre-lttrn 11280 ax-pre-ltadd 11281 ax-pre-mulgt0 11282 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-pss 4013 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-riota 7379 df-ov 7425 df-oprab 7426 df-mpo 7427 df-om 7880 df-2nd 8004 df-tpos 8248 df-frecs 8304 df-wrecs 8335 df-recs 8384 df-rdg 8423 df-er 8722 df-en 8979 df-dom 8980 df-sdom 8981 df-pnf 11350 df-mnf 11351 df-xr 11352 df-ltxr 11353 df-le 11354 df-sub 11548 df-neg 11549 df-nn 12341 df-2 12410 df-3 12411 df-sets 17349 df-slot 17367 df-ndx 17379 df-base 17395 df-ress 17416 df-plusg 17448 df-mulr 17449 df-0g 17619 df-mgm 18823 df-sgrp 18915 df-mnd 18931 df-grp 19154 df-minusg 19155 df-cmn 20003 df-abl 20004 df-mgp 20368 df-rng 20382 df-ur 20415 df-ring 20468 df-oppr 20574 df-dvdsr 20594 df-unit 20595 df-invr 20625 |
| This theorem is used by: 1rinv 20632 0unit 20633 ringunitnzdiv 20635 dvrcl 20641 dvrass 20645 dvrcan1 20646 ringinvdv 20651 subrguss 20846 subrginv 20847 subrgunit 20849 unitrrg 20962 drnginvrcl 21018 issubdrg 21044 ornglmullt 21133 matinv 22999 matunit 23000 slesolinv 23005 slesolinvbi 23006 slesolex 23007 nminvr 24995 nmdvr 24996 nrginvrcnlem 25017 ply1divalg 26463 uc1pmon1p 26477 dchrn0 27584 kerunit 33934 dvdsruassoi 33987 unitmulrprm 34108 invginvrid 49586 lincresunit3lem3 49693 lincresunitlem1 49694 |
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