Description: Lemma 2 for 0wlkon and 0trlon . (Contributed by AV, 3-Jan-2021) (Revised by AV, 23-Mar-2021)
Ref | Expression | ||
---|---|---|---|
Hypothesis | 0wlk.v | ||
Assertion | 0wlkonlem2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 0wlk.v | ||
2 | ovex | ||
3 | 1 | fvexi | |
4 | simpl | ||
5 | fpmg | ||
6 | 2 3 4 5 | mp3an12i |