Table of ContentsRelated theorems
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| Description: Definition of dom. |
| Ref | Expression |
|---|---|
| df-doma |
 dom      |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cdom_ 10595 |
. 2
dom | |
| 2 | c1st 4074 |
. . 3
| |
| 3 | 2, 2 | ccom 3171 |
. 2
|
| 4 | 1, 3 | wceq 955 |
1
 dom |
| Colors of variables: wff set class |
| This definition is referenced by: domval 10606 |