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Related theorems Unicode version |
| Description: Deduction rearranging conjuncts. |
| Ref | Expression |
|---|---|
| an1rs.1 |
|
| Ref | Expression |
|---|---|
| an1rs |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | an23 487 |
. 2
| |
| 2 | an1rs.1 |
. 2
| |
| 3 | 1, 2 | sylbi 199 |
1
|