Step |
Hyp |
Ref |
Expression |
1 |
|
wwlks2onv.v |
|
2 |
|
id |
|
3 |
1
|
elwwlks2ons3im |
|
4 |
|
anass |
|
5 |
2 3 4
|
sylanbrc |
|
6 |
|
simpr |
|
7 |
|
s3eq2 |
|
8 |
|
eqeq2 |
|
9 |
|
eleq1 |
|
10 |
8 9
|
anbi12d |
|
11 |
7 10
|
syl |
|
12 |
11
|
adantl |
|
13 |
|
simpr |
|
14 |
|
eleq1 |
|
15 |
14
|
biimpac |
|
16 |
13 15
|
jca |
|
17 |
16
|
adantr |
|
18 |
6 12 17
|
rspcedvd |
|
19 |
5 18
|
syl |
|
20 |
|
eleq1 |
|
21 |
20
|
eqcoms |
|
22 |
21
|
biimpa |
|
23 |
22
|
rexlimivw |
|
24 |
19 23
|
impbii |
|