Step |
Hyp |
Ref |
Expression |
1 |
|
infexd.1 |
|
2 |
|
df-inf |
|
3 |
|
cnvso |
|
4 |
1 3
|
sylib |
|
5 |
4
|
supval2 |
|
6 |
|
vex |
|
7 |
|
vex |
|
8 |
6 7
|
brcnv |
|
9 |
8
|
a1i |
|
10 |
9
|
notbid |
|
11 |
10
|
ralbidv |
|
12 |
7 6
|
brcnv |
|
13 |
12
|
a1i |
|
14 |
|
vex |
|
15 |
7 14
|
brcnv |
|
16 |
15
|
a1i |
|
17 |
16
|
rexbidv |
|
18 |
13 17
|
imbi12d |
|
19 |
18
|
ralbidv |
|
20 |
11 19
|
anbi12d |
|
21 |
20
|
riotabidv |
|
22 |
5 21
|
eqtrd |
|
23 |
2 22
|
eqtrid |
|