Step |
Hyp |
Ref |
Expression |
1 |
|
fprodadd2cncf.k |
|
2 |
|
fprodadd2cncf.a |
|
3 |
|
fprodadd2cncf.b |
|
4 |
|
fprodadd2cncf.f |
|
5 |
4
|
a1i |
|
6 |
|
eqid |
|
7 |
6
|
cnfldtopon |
|
8 |
7
|
a1i |
|
9 |
|
eqid |
|
10 |
3 9
|
add2cncf |
|
11 |
6
|
cncfcn1 |
|
12 |
11
|
a1i |
|
13 |
10 12
|
eleqtrd |
|
14 |
1 6 8 2 13
|
fprodcn |
|
15 |
5 14
|
eqeltrd |
|
16 |
11
|
a1i |
|
17 |
16
|
eqcomd |
|
18 |
15 17
|
eleqtrd |
|