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Related theorems Unicode version |
| Description: Introduce conjunct on right. |
| Ref | Expression |
|---|---|
| ran.1 |
|
| Ref | Expression |
|---|---|
| ran |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ran.1 |
. . 3
| |
| 2 | 1 | lan 77 |
. 2
|
| 3 | ancom 74 |
. 2
| |
| 4 | ancom 74 |
. 2
| |
| 5 | 2, 3, 4 | 3tr1 63 |
1
|