Description: Restricted existential specialization with a restricted universal quantifier over a relation, closed form. (Contributed by AV, 20-Aug-2022)
Ref | Expression | ||
---|---|---|---|
Assertion | brralrspcev | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | breq2 | |
|
2 | 1 | ralbidv | |
3 | 2 | rspcev | |