Description: Version of rabbidva2 with disjoint variable condition replaced by nonfreeness hypothesis. (Contributed by BJ, 27-Apr-2019)
Ref | Expression | ||
---|---|---|---|
Hypotheses | bj-rabbida2.nf | ||
bj-rabbida2.1 | |||
Assertion | bj-rabbida2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | bj-rabbida2.nf | ||
2 | bj-rabbida2.1 | ||
3 | 1 2 | abbid | |
4 | df-rab | ||
5 | df-rab | ||
6 | 3 4 5 | 3eqtr4g |