Description: Obsolete version of elopaelxp as of 11-Dec-2024. (Contributed by Alexander van der Vekens, 23-Jun-2018) (New usage is discouraged.) (Proof modification is discouraged.)
Ref | Expression | ||
---|---|---|---|
Assertion | elopaelxpOLD |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpl | ||
2 | 1 | 2eximi | |
3 | elopab | ||
4 | elvv | ||
5 | 2 3 4 | 3imtr4i |