Description: The divides relation is in fact a relation. (Contributed by Steve Rodriguez, 20-Jan-2020)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | reldvds | |- Rel || | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | df-dvds |  |-  || = { <. x , y >. | ( ( x e. ZZ /\ y e. ZZ ) /\ E. z e. ZZ ( z x. x ) = y ) } | |
| 2 | 1 | relopabiv | |- Rel || |