Table of ContentsRelated theorems
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Related theorems Unicode version |
| Description: Definition of id. |
| Ref | Expression |
|---|---|
| df-ida |
 id       |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cid_ 10597 |
. 2
id | |
| 2 | c1st 4074 |
. . 3
| |
| 3 | c2nd 4075 |
. . 3
| |
| 4 | 2, 3 | ccom 3171 |
. 2
|
| 5 | 1, 4 | wceq 955 |
1
 id |
| Colors of variables: wff set class |
| This definition is referenced by: idval 10608 |