Step |
Hyp |
Ref |
Expression |
1 |
|
mulcncff.f |
|
2 |
|
mulcncff.g |
|
3 |
|
cncfrss |
|
4 |
|
cnex |
|
5 |
4
|
ssex |
|
6 |
1 3 5
|
3syl |
|
7 |
|
cncff |
|
8 |
1 7
|
syl |
|
9 |
8
|
ffvelrnda |
|
10 |
|
cncff |
|
11 |
2 10
|
syl |
|
12 |
11
|
ffvelrnda |
|
13 |
8
|
feqmptd |
|
14 |
11
|
feqmptd |
|
15 |
6 9 12 13 14
|
offval2 |
|
16 |
13 1
|
eqeltrrd |
|
17 |
14 2
|
eqeltrrd |
|
18 |
16 17
|
mulcncf |
|
19 |
15 18
|
eqeltrd |
|