Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > drngui | Structured version Visualization version GIF version |
Description: The set of units of a division ring. (Contributed by Mario Carneiro, 2-Dec-2014.) |
Ref | Expression |
---|---|
drngui.b | ⊢ 𝐵 = (Base‘𝑅) |
drngui.z | ⊢ 0 = (0g‘𝑅) |
drngui.r | ⊢ 𝑅 ∈ DivRing |
Ref | Expression |
---|---|
drngui | ⊢ (𝐵 ∖ { 0 }) = (Unit‘𝑅) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | drngui.r | . . . 4 ⊢ 𝑅 ∈ DivRing | |
2 | drngui.b | . . . . 5 ⊢ 𝐵 = (Base‘𝑅) | |
3 | eqid 2610 | . . . . 5 ⊢ (Unit‘𝑅) = (Unit‘𝑅) | |
4 | drngui.z | . . . . 5 ⊢ 0 = (0g‘𝑅) | |
5 | 2, 3, 4 | isdrng 18574 | . . . 4 ⊢ (𝑅 ∈ DivRing ↔ (𝑅 ∈ Ring ∧ (Unit‘𝑅) = (𝐵 ∖ { 0 }))) |
6 | 1, 5 | mpbi 219 | . . 3 ⊢ (𝑅 ∈ Ring ∧ (Unit‘𝑅) = (𝐵 ∖ { 0 })) |
7 | 6 | simpri 477 | . 2 ⊢ (Unit‘𝑅) = (𝐵 ∖ { 0 }) |
8 | 7 | eqcomi 2619 | 1 ⊢ (𝐵 ∖ { 0 }) = (Unit‘𝑅) |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 383 = wceq 1475 ∈ wcel 1977 ∖ cdif 3537 {csn 4125 ‘cfv 5804 Basecbs 15695 0gc0g 15923 Ringcrg 18370 Unitcui 18462 DivRingcdr 18570 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ral 2901 df-rex 2902 df-rab 2905 df-v 3175 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-br 4584 df-iota 5768 df-fv 5812 df-drng 18572 |
This theorem is referenced by: cnflddiv 19595 cnfldinv 19596 cnsubdrglem 19616 cnmgpabl 19626 cnmsubglem 19628 gzrngunit 19631 zringunit 19655 expghm 19663 psgninv 19747 zrhpsgnmhm 19749 amgmlem 24516 dchrghm 24781 dchrabs 24785 sum2dchr 24799 lgseisenlem4 24903 qrngdiv 25113 proot1ex 36798 amgmwlem 42357 amgmlemALT 42358 |
Copyright terms: Public domain | W3C validator |