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Related theorems Unicode version |
| Description: A syllogism inference combined with contraction. |
| Ref | Expression |
|---|---|
| sylanc.1 |
|
| sylanc.2 |
|
| sylanc.3 |
|
| Ref | Expression |
|---|---|
| sylanc |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sylanc.1 |
. . 3
| |
| 2 | 1 | ex 373 |
. 2
|
| 3 | sylanc.2 |
. 2
| |
| 4 | sylanc.3 |
. 2
| |
| 5 | 2, 3, 4 | sylc 68 |
1
|