Description: Commutation in antecedent. Rotate right. (Contributed by NM, 28-Jan-1996) (Revised by Wolf Lammen, 9-Apr-2022)
Ref | Expression | ||
---|---|---|---|
Hypothesis | 3exp.1 | |
|
Assertion | 3comr | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3exp.1 | |
|
2 | 1 | 3com12 | |
3 | 2 | 3com13 | |