Description: The cosets by the null class are in equivalence relation. (Contributed by Peter Mazsa, 31-Dec-2024)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | eqvrelcoss0 | |- EqvRel ,~ (/) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | disjALTV0 | |- Disj (/) |
|
| 2 | 1 | disjimi | |- EqvRel ,~ (/) |