Description: Disjoint relation is a relation. (Contributed by Peter Mazsa, 15-Sep-2021)
Ref | Expression | ||
---|---|---|---|
Assertion | disjrel | |- ( Disj R -> Rel R ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-disjALTV | |- ( Disj R <-> ( CnvRefRel ,~ `' R /\ Rel R ) ) |
|
2 | 1 | simprbi | |- ( Disj R -> Rel R ) |