Step |
Hyp |
Ref |
Expression |
1 |
|
oveq1 |
|
2 |
1
|
oveq1d |
|
3 |
|
oveq1 |
|
4 |
3
|
oveq1d |
|
5 |
2 4
|
eqeq12d |
|
6 |
|
oveq2 |
|
7 |
6
|
oveq1d |
|
8 |
|
oveq1 |
|
9 |
8
|
oveq2d |
|
10 |
7 9
|
eqeq12d |
|
11 |
|
oveq1 |
|
12 |
11
|
oveq2d |
|
13 |
|
oveq2 |
|
14 |
13
|
oveq1d |
|
15 |
12 14
|
eqeq12d |
|
16 |
|
oveq2 |
|
17 |
16
|
oveq2d |
|
18 |
|
oveq2 |
|
19 |
18
|
oveq2d |
|
20 |
17 19
|
eqeq12d |
|
21 |
|
ifhvhv0 |
|
22 |
|
ifhvhv0 |
|
23 |
|
ifhvhv0 |
|
24 |
|
ifhvhv0 |
|
25 |
21 22 23 24
|
hvsubsub4i |
|
26 |
5 10 15 20 25
|
dedth4h |
|