Description: Equality theorem for equivalence relation, inference version. (Contributed by Peter Mazsa, 23-Sep-2021)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | eqvreleqi.1 | |- R = S |
|
| Assertion | eqvreleqi | |- ( EqvRel R <-> EqvRel S ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqvreleqi.1 | |- R = S |
|
| 2 | eqvreleq | |- ( R = S -> ( EqvRel R <-> EqvRel S ) ) |
|
| 3 | 1 2 | ax-mp | |- ( EqvRel R <-> EqvRel S ) |