Mathbox for Jeff Madsen |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > Mathboxes > df-drngo | Structured version Visualization version Unicode version |
Description: Define the class of all division rings (sometimes called skew fields). A division ring is a unital ring where every element except the additive identity has a multiplicative inverse. (Contributed by NM, 4-Apr-2009.) (New usage is discouraged.) |
Ref | Expression |
---|---|
df-drngo | GId GId |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cdrng 33747 | . 2 | |
2 | vg | . . . . . . 7 | |
3 | 2 | cv 1482 | . . . . . 6 |
4 | vh | . . . . . . 7 | |
5 | 4 | cv 1482 | . . . . . 6 |
6 | 3, 5 | cop 4183 | . . . . 5 |
7 | crngo 33693 | . . . . 5 | |
8 | 6, 7 | wcel 1990 | . . . 4 |
9 | 3 | crn 5115 | . . . . . . . 8 |
10 | cgi 27344 | . . . . . . . . . 10 GId | |
11 | 3, 10 | cfv 5888 | . . . . . . . . 9 GId |
12 | 11 | csn 4177 | . . . . . . . 8 GId |
13 | 9, 12 | cdif 3571 | . . . . . . 7 GId |
14 | 13, 13 | cxp 5112 | . . . . . 6 GId GId |
15 | 5, 14 | cres 5116 | . . . . 5 GId GId |
16 | cgr 27343 | . . . . 5 | |
17 | 15, 16 | wcel 1990 | . . . 4 GId GId |
18 | 8, 17 | wa 384 | . . 3 GId GId |
19 | 18, 2, 4 | copab 4712 | . 2 GId GId |
20 | 1, 19 | wceq 1483 | 1 GId GId |
Colors of variables: wff setvar class |
This definition is referenced by: isdivrngo 33749 drngoi 33750 isdrngo1 33755 |
Copyright terms: Public domain | W3C validator |