Description: Eliminate the class existence constraint in eliniseg . (Contributed by Mario Carneiro, 5-Dec-2014) (Revised by Mario Carneiro, 17-Nov-2015)
Ref | Expression | ||
---|---|---|---|
Assertion | eliniseg2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | relcnv | ||
2 | elrelimasn | ||
3 | 1 2 | ax-mp | |
4 | relbrcnvg | ||
5 | 3 4 | syl5bb |