| Metamath Proof Explorer |
< Previous
Next >
Related theorems Unicode version |
| Description: Syllogism inference. (Contributed by Jeff Madsen, 2-Sep-2009.) |
| Ref | Expression |
|---|---|
| sylanbrc.1 |
|
| sylanbrc.2 |
|
| sylanbrc.3 |
|
| Ref | Expression |
|---|---|
| sylanbrc |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sylanbrc.2 |
. . 3
| |
| 2 | sylanbrc.3 |
. . 3
| |
| 3 | 1, 2 | jca 310 |
. 2
|
| 4 | sylanbrc.1 |
. 2
| |
| 5 | 3, 4 | sylibr 217 |
1
|