| Metamath Proof Explorer |
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Related theorems Unicode version |
| Description: A syllogism inference combined with contraction. |
| Ref | Expression |
|---|---|
| sylc.1 |
|
| sylc.2 |
|
| sylc.3 |
|
| Ref | Expression |
|---|---|
| sylc |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sylc.3 |
. 2
| |
| 2 | sylc.2 |
. . 3
| |
| 3 | sylc.1 |
. . 3
| |
| 4 | 2, 3 | syl 10 |
. 2
|
| 5 | 1, 4 | mpd 26 |
1
|