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Related theorems Unicode version |
| Description: Transitive inference useful for eliminating definitions. |
| Ref | Expression |
|---|---|
| 3tr2.1 |
|
| 3tr2.2 |
|
| 3tr2.3 |
|
| Ref | Expression |
|---|---|
| 3tr2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3tr2.1 |
. 2
| |
| 2 | 3tr2.2 |
. . 3
| |
| 3 | 2 | ax-r1 34 |
. 2
|
| 4 | 3tr2.3 |
. . 3
| |
| 5 | 4 | ax-r1 34 |
. 2
|
| 6 | 1, 3, 5 | 3tr1 60 |
1
|