Step |
Hyp |
Ref |
Expression |
1 |
|
smodm |
|
2 |
|
ordtr1 |
|
3 |
2
|
ancomsd |
|
4 |
3
|
expdimp |
|
5 |
1 4
|
sylan |
|
6 |
|
df-smo |
|
7 |
|
eleq1 |
|
8 |
|
fveq2 |
|
9 |
8
|
eleq1d |
|
10 |
7 9
|
imbi12d |
|
11 |
|
eleq2 |
|
12 |
|
fveq2 |
|
13 |
12
|
eleq2d |
|
14 |
11 13
|
imbi12d |
|
15 |
10 14
|
rspc2v |
|
16 |
15
|
ancoms |
|
17 |
16
|
com12 |
|
18 |
17
|
3ad2ant3 |
|
19 |
6 18
|
sylbi |
|
20 |
19
|
expdimp |
|
21 |
5 20
|
syld |
|
22 |
21
|
pm2.43d |
|
23 |
22
|
3impia |
|