Description: Lemma 6 for wlkiswwlks2 . (Contributed by Alexander van der Vekens, 21-Jul-2018) (Revised by AV, 10-Apr-2021)
Ref | Expression | ||
---|---|---|---|
Hypotheses | wlkiswwlks2lem.f | |
|
wlkiswwlks2lem.e | |
||
Assertion | wlkiswwlks2lem6 | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wlkiswwlks2lem.f | |
|
2 | wlkiswwlks2lem.e | |
|
3 | 1 2 | wlkiswwlks2lem5 | |
4 | 3 | imp | |
5 | 1 | wlkiswwlks2lem3 | |
6 | 5 | 3adant1 | |
7 | 6 | adantr | |
8 | 1 2 | wlkiswwlks2lem4 | |
9 | 8 | imp | |
10 | 4 7 9 | 3jca | |
11 | 10 | ex | |