Step |
Hyp |
Ref |
Expression |
1 |
|
divalglem7.1 |
|
2 |
|
divalglem7.2 |
|
3 |
|
oveq1 |
|
4 |
3
|
eleq1d |
|
5 |
4
|
notbid |
|
6 |
5
|
imbi2d |
|
7 |
|
neeq1 |
|
8 |
|
oveq1 |
|
9 |
8
|
oveq2d |
|
10 |
9
|
eleq1d |
|
11 |
10
|
notbid |
|
12 |
7 11
|
imbi12d |
|
13 |
|
nnabscl |
|
14 |
1 2 13
|
mp2an |
|
15 |
|
0z |
|
16 |
|
0le0 |
|
17 |
14
|
nngt0i |
|
18 |
14
|
nnzi |
|
19 |
|
elfzm11 |
|
20 |
15 18 19
|
mp2an |
|
21 |
15 16 17 20
|
mpbir3an |
|
22 |
21
|
elimel |
|
23 |
15
|
elimel |
|
24 |
14 22 23
|
divalglem6 |
|
25 |
6 12 24
|
dedth2h |
|