Description: Equality inference for restricted existential quantifier. (Contributed by Mario Carneiro, 23-Apr-2015)
Ref | Expression | ||
---|---|---|---|
Hypothesis | raleq1i.1 | |
|
Assertion | rexeqi | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | raleq1i.1 | |
|
2 | rexeq | |
|
3 | 1 2 | ax-mp | |