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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 14146 |
. 2
| |
| 2 | ccnfld 14112 |
. . 3
| |
| 3 | cz 9326 |
. . 3
| |
| 4 | cress 12679 |
. . 3
| |
| 5 | 2, 3, 4 | co 5922 |
. 2
|
| 6 | 1, 5 | wceq 1364 |
1
|
| Colors of variables: wff set class |
| This definition is referenced by: zringcrng 14148 zringbas 14152 zringplusg 14153 zringmulg 14154 zringmulr 14155 zring0 14156 zring1 14157 zringsubgval 14161 zringmpg 14162 zndvds 14205 lgseisenlem4 15314 |
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