| Step |
Hyp |
Ref |
Expression |
| 1 |
|
noinfdm.1 |
|
| 2 |
|
iffalse |
|
| 3 |
1 2
|
eqtrid |
|
| 4 |
3
|
dmeqd |
|
| 5 |
|
iotaex |
|
| 6 |
|
eqid |
|
| 7 |
5 6
|
dmmpti |
|
| 8 |
|
eleq1w |
|
| 9 |
|
suceq |
|
| 10 |
9
|
reseq2d |
|
| 11 |
9
|
reseq2d |
|
| 12 |
10 11
|
eqeq12d |
|
| 13 |
12
|
imbi2d |
|
| 14 |
13
|
ralbidv |
|
| 15 |
8 14
|
anbi12d |
|
| 16 |
15
|
rexbidv |
|
| 17 |
|
dmeq |
|
| 18 |
17
|
eleq2d |
|
| 19 |
|
breq1 |
|
| 20 |
19
|
notbid |
|
| 21 |
|
reseq1 |
|
| 22 |
21
|
eqeq1d |
|
| 23 |
20 22
|
imbi12d |
|
| 24 |
23
|
ralbidv |
|
| 25 |
|
breq2 |
|
| 26 |
25
|
notbid |
|
| 27 |
|
reseq1 |
|
| 28 |
27
|
eqeq2d |
|
| 29 |
26 28
|
imbi12d |
|
| 30 |
29
|
cbvralvw |
|
| 31 |
24 30
|
bitrdi |
|
| 32 |
18 31
|
anbi12d |
|
| 33 |
32
|
cbvrexvw |
|
| 34 |
16 33
|
bitrdi |
|
| 35 |
34
|
cbvabv |
|
| 36 |
7 35
|
eqtri |
|
| 37 |
4 36
|
eqtrdi |
|