Description: Reverse closure for the divisibility relation. (Contributed by Stefan O'Rear, 5-Sep-2015)
Ref | Expression | ||
---|---|---|---|
Assertion | dvdszrcl | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-dvds | |
|
2 | opabssxp | |
|
3 | 1 2 | eqsstri | |
4 | 3 | brel | |