Description: Obsolete version of enfi as of 23-Sep-2024. (Contributed by NM, 22-Aug-2008) (Proof modification is discouraged.) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Assertion | enfiOLD |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | enen1 | ||
2 | 1 | rexbidv | |
3 | isfi | ||
4 | isfi | ||
5 | 2 3 4 | 3bitr4g |