Step |
Hyp |
Ref |
Expression |
1 |
|
axdclem.1 |
|
2 |
|
neeq1 |
|
3 |
|
abn0 |
|
4 |
2 3
|
bitrdi |
|
5 |
|
eleq2 |
|
6 |
|
breq2 |
|
7 |
6
|
cbvabv |
|
8 |
7
|
eleq2i |
|
9 |
5 8
|
bitr4di |
|
10 |
|
fvex |
|
11 |
|
breq2 |
|
12 |
10 11
|
elab |
|
13 |
9 12
|
bitrdi |
|
14 |
|
fveq2 |
|
15 |
14
|
breq2d |
|
16 |
13 15
|
bitrd |
|
17 |
4 16
|
imbi12d |
|
18 |
17
|
rspcv |
|
19 |
|
fvex |
|
20 |
|
vex |
|
21 |
19 20
|
brelrn |
|
22 |
21
|
abssi |
|
23 |
|
sstr |
|
24 |
22 23
|
mpan |
|
25 |
|
vex |
|
26 |
25
|
dmex |
|
27 |
26
|
elpw2 |
|
28 |
24 27
|
sylibr |
|
29 |
18 28
|
syl11 |
|
30 |
29
|
3imp |
|
31 |
|
fvex |
|
32 |
|
nfcv |
|
33 |
|
nfcv |
|
34 |
|
nfcv |
|
35 |
|
breq1 |
|
36 |
35
|
abbidv |
|
37 |
36
|
fveq2d |
|
38 |
32 33 34 1 37
|
frsucmpt |
|
39 |
31 38
|
mpan2 |
|
40 |
39
|
breq2d |
|
41 |
30 40
|
syl5ibrcom |
|