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| Mirrors > Home > ILE Home > Th. List > df-zring | Unicode version | ||
| Description: The (unital) ring of integers. (Contributed by Alexander van der Vekens, 9-Jun-2019.) |
| Ref | Expression |
|---|---|
| df-zring |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | czring 14437 |
. 2
| |
| 2 | ccnfld 14403 |
. . 3
| |
| 3 | cz 9402 |
. . 3
| |
| 4 | cress 12918 |
. . 3
| |
| 5 | 2, 3, 4 | co 5962 |
. 2
|
| 6 | 1, 5 | wceq 1373 |
1
|
| Colors of variables: wff set class |
| This definition is referenced by: zringcrng 14439 zringbas 14443 zringplusg 14444 zringmulg 14445 zringmulr 14446 zring0 14447 zring1 14448 zringsubgval 14452 zringmpg 14453 zndvds 14496 lgseisenlem4 15635 |
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