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| Mirrors > Home > ILE Home > Th. List > sylan2 | Unicode version | ||
| Description: A syllogism inference. (Contributed by NM, 21-Apr-1994.) (Proof shortened by Wolf Lammen, 22-Nov-2012.) |
| Ref | Expression |
|---|---|
| sylan2.1 |
|
| sylan2.2 |
|
| Ref | Expression |
|---|---|
| sylan2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sylan2.1 |
. . 3
| |
| 2 | 1 | adantl 277 |
. 2
|
| 3 | sylan2.2 |
. 2
| |
| 4 | 2, 3 | syldan 282 |
1
|
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