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 | |