Description: Equality of restricted class abstractions. (Contributed by Mario Carneiro, 26-Jan-2017)
Ref | Expression | ||
---|---|---|---|
Hypotheses | rabeqbidva.1 | |
|
rabeqbidva.2 | |
||
Assertion | rabeqbidva | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rabeqbidva.1 | |
|
2 | rabeqbidva.2 | |
|
3 | 2 | rabbidva | |
4 | 1 | rabeqdv | |
5 | 3 4 | eqtrd | |