Description: Equivalent expressions for the class of cosets by the converse of R to be a subset of the identity class. (Contributed by Peter Mazsa, 31-Aug-2021)
Ref | Expression | ||
---|---|---|---|
Assertion | cosscnvssid4 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cossssid4 | ||
2 | brcnvg | ||
3 | 2 | el2v | |
4 | 3 | mobii | |
5 | 4 | albii | |
6 | 1 5 | bitri |