Description: Elementhood in the converse epsilon coset of A is elementhood in A . (Contributed by Peter Mazsa, 27-Jan-2019)
Ref | Expression | ||
---|---|---|---|
Assertion | eleccnvep |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | relcnv | ||
2 | relelec | ||
3 | 1 2 | ax-mp | |
4 | brcnvep | ||
5 | 3 4 | syl5bb |