Step |
Hyp |
Ref |
Expression |
1 |
|
topdlat.i |
|
2 |
1
|
topclat |
|
3 |
|
clatl |
|
4 |
2 3
|
syl |
|
5 |
|
simpl |
|
6 |
|
simpr2 |
|
7 |
1
|
ipobas |
|
8 |
5 7
|
syl |
|
9 |
6 8
|
eleqtrrd |
|
10 |
|
simpr3 |
|
11 |
10 8
|
eleqtrrd |
|
12 |
|
eqid |
|
13 |
1 5 9 11 12
|
toplatjoin |
|
14 |
13
|
oveq2d |
|
15 |
|
simpr1 |
|
16 |
15 8
|
eleqtrrd |
|
17 |
|
unopn |
|
18 |
5 9 11 17
|
syl3anc |
|
19 |
|
eqid |
|
20 |
1 5 16 18 19
|
toplatmeet |
|
21 |
|
inopn |
|
22 |
5 16 9 21
|
syl3anc |
|
23 |
|
inopn |
|
24 |
5 16 11 23
|
syl3anc |
|
25 |
1 5 22 24 12
|
toplatjoin |
|
26 |
1 5 16 9 19
|
toplatmeet |
|
27 |
1 5 16 11 19
|
toplatmeet |
|
28 |
26 27
|
oveq12d |
|
29 |
|
indi |
|
30 |
29
|
a1i |
|
31 |
25 28 30
|
3eqtr4rd |
|
32 |
14 20 31
|
3eqtrd |
|
33 |
32
|
ralrimivvva |
|
34 |
|
eqid |
|
35 |
34 12 19
|
isdlat |
|
36 |
4 33 35
|
sylanbrc |
|