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Mirrors > Home > MPE Home > Th. List > unitcl | Structured version Visualization version GIF version |
Description: A unit is an element of the base set. (Contributed by Mario Carneiro, 1-Dec-2014.) |
Ref | Expression |
---|---|
unitcl.1 | ⊢ 𝐵 = (Base‘𝑅) |
unitcl.2 | ⊢ 𝑈 = (Unit‘𝑅) |
Ref | Expression |
---|---|
unitcl | ⊢ (𝑋 ∈ 𝑈 → 𝑋 ∈ 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | unitcl.2 | . . . 4 ⊢ 𝑈 = (Unit‘𝑅) | |
2 | eqid 2738 | . . . 4 ⊢ (1r‘𝑅) = (1r‘𝑅) | |
3 | eqid 2738 | . . . 4 ⊢ (∥r‘𝑅) = (∥r‘𝑅) | |
4 | eqid 2738 | . . . 4 ⊢ (oppr‘𝑅) = (oppr‘𝑅) | |
5 | eqid 2738 | . . . 4 ⊢ (∥r‘(oppr‘𝑅)) = (∥r‘(oppr‘𝑅)) | |
6 | 1, 2, 3, 4, 5 | isunit 19814 | . . 3 ⊢ (𝑋 ∈ 𝑈 ↔ (𝑋(∥r‘𝑅)(1r‘𝑅) ∧ 𝑋(∥r‘(oppr‘𝑅))(1r‘𝑅))) |
7 | 6 | simplbi 497 | . 2 ⊢ (𝑋 ∈ 𝑈 → 𝑋(∥r‘𝑅)(1r‘𝑅)) |
8 | unitcl.1 | . . 3 ⊢ 𝐵 = (Base‘𝑅) | |
9 | 8, 3 | dvdsrcl 19806 | . 2 ⊢ (𝑋(∥r‘𝑅)(1r‘𝑅) → 𝑋 ∈ 𝐵) |
10 | 7, 9 | syl 17 | 1 ⊢ (𝑋 ∈ 𝑈 → 𝑋 ∈ 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1539 ∈ wcel 2108 class class class wbr 5070 ‘cfv 6418 Basecbs 16840 1rcur 19652 opprcoppr 19776 ∥rcdsr 19795 Unitcui 19796 |
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 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 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-ral 3068 df-rex 3069 df-reu 3070 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-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-id 5480 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-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-ov 7258 df-dvdsr 19798 df-unit 19799 |
This theorem is referenced by: unitss 19817 unitmulcl 19821 unitgrp 19824 ringinvcl 19833 unitnegcl 19838 unitdvcl 19844 dvrid 19845 dvrcan1 19848 dvrcan3 19849 dvreq1 19850 irredrmul 19864 isdrng2 19916 subrguss 19954 subrginv 19955 subrgunit 19957 unitrrg 20477 gzrngunitlem 20575 gzrngunit 20576 zringunit 20600 matinv 21734 cramerimp 21743 unitnmn0 23738 nminvr 23739 nrginvrcnlem 23761 ig1peu 25241 dchrelbas3 26291 dchrmulcl 26302 kerunit 31424 invginvrid 45591 lincresunit3lem3 45703 lincresunit3lem1 45708 |
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