Step |
Hyp |
Ref |
Expression |
1 |
|
cllem0.v |
|
2 |
|
cllem0.rex |
|
3 |
|
cllem0.r |
|
4 |
|
cllem0.x |
|
5 |
|
cllem0.y |
|
6 |
|
cllem0.closed |
|
7 |
2
|
elexi |
|
8 |
7 3 1
|
elab2 |
|
9 |
8
|
ralbii |
|
10 |
9
|
ralbii |
|
11 |
|
df-ral |
|
12 |
11
|
ralbii |
|
13 |
|
df-ral |
|
14 |
10 12 13
|
3bitri |
|
15 |
|
vex |
|
16 |
15 4 1
|
elab2 |
|
17 |
|
vex |
|
18 |
17 5 1
|
elab2 |
|
19 |
16 18 6
|
syl2anb |
|
20 |
19
|
ex |
|
21 |
20
|
alrimiv |
|
22 |
14 21
|
mpgbir |
|