Description: Define class of all Abelian groups. (Contributed by NM, 17-Oct-2011) (Revised by Mario Carneiro, 6-Jan-2015)
Ref | Expression | ||
---|---|---|---|
Assertion | df-abl | |- Abel = ( Grp i^i CMnd ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
0 | cabl | |- Abel |
|
1 | cgrp | |- Grp |
|
2 | ccmn | |- CMnd |
|
3 | 1 2 | cin | |- ( Grp i^i CMnd ) |
4 | 0 3 | wceq | |- Abel = ( Grp i^i CMnd ) |