Step |
Hyp |
Ref |
Expression |
1 |
|
iscyg.1 |
|
2 |
|
iscyg.2 |
|
3 |
|
iscyg3.e |
|
4 |
1 2 3
|
iscyggen |
|
5 |
1 2
|
mulgcl |
|
6 |
5
|
3expa |
|
7 |
6
|
an32s |
|
8 |
7
|
fmpttd |
|
9 |
|
frn |
|
10 |
|
eqss |
|
11 |
10
|
baib |
|
12 |
8 9 11
|
3syl |
|
13 |
|
dfss3 |
|
14 |
|
eqid |
|
15 |
|
ovex |
|
16 |
14 15
|
elrnmpti |
|
17 |
16
|
ralbii |
|
18 |
13 17
|
bitri |
|
19 |
12 18
|
bitrdi |
|
20 |
19
|
pm5.32da |
|
21 |
4 20
|
syl5bb |
|