Description: .~ is a relation. (Contributed by Alexander van der Vekens, 25-Mar-2018) (Revised by AV, 29-Apr-2021)
Ref | Expression | ||
---|---|---|---|
Hypothesis | erclwwlk.r | |
|
Assertion | erclwwlkrel | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | erclwwlk.r | |
|
2 | 1 | relopabi | |