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Related theorems Unicode version |
| Description: A syllogism inference. |
| Ref | Expression |
|---|---|
| sylan.1 |
|
| sylan.2 |
|
| Ref | Expression |
|---|---|
| sylan |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sylan.2 |
. . 3
| |
| 2 | sylan.1 |
. . . 4
| |
| 3 | 2 | exp 291 |
. . 3
|
| 4 | 1, 3 | syl 12 |
. 2
|
| 5 | 4 | imp 277 |
1
|