Step |
Hyp |
Ref |
Expression |
1 |
|
odcl.1 |
|
2 |
|
odcl.2 |
|
3 |
|
odid.3 |
|
4 |
|
odid.4 |
|
5 |
|
oveq1 |
|
6 |
5
|
eqeq1d |
|
7 |
6
|
elrab |
|
8 |
|
eqid |
|
9 |
1 3 4 2 8
|
odval |
|
10 |
|
n0i |
|
11 |
10
|
iffalsed |
|
12 |
9 11
|
sylan9eq |
|
13 |
|
ssrab2 |
|
14 |
|
nnuz |
|
15 |
13 14
|
sseqtri |
|
16 |
|
ne0i |
|
17 |
16
|
adantl |
|
18 |
|
infssuzcl |
|
19 |
15 17 18
|
sylancr |
|
20 |
13 19
|
sselid |
|
21 |
|
infssuzle |
|
22 |
15 21
|
mpan |
|
23 |
22
|
adantl |
|
24 |
|
elrabi |
|
25 |
24
|
nnzd |
|
26 |
|
fznn |
|
27 |
25 26
|
syl |
|
28 |
27
|
adantl |
|
29 |
20 23 28
|
mpbir2and |
|
30 |
12 29
|
eqeltrd |
|
31 |
7 30
|
sylan2br |
|
32 |
31
|
3impb |
|