Step |
Hyp |
Ref |
Expression |
1 |
|
ssrab2 |
|
2 |
|
ssnn0fi |
|
3 |
|
nnel |
|
4 |
|
nfcv |
|
5 |
|
nfcv |
|
6 |
|
nfsbc1v |
|
7 |
6
|
nfn |
|
8 |
|
sbceq2a |
|
9 |
8
|
equcoms |
|
10 |
9
|
con2bid |
|
11 |
4 5 7 10
|
elrabf |
|
12 |
11
|
baib |
|
13 |
3 12
|
syl5bb |
|
14 |
13
|
con4bid |
|
15 |
14
|
imbi2d |
|
16 |
15
|
ralbiia |
|
17 |
|
nfv |
|
18 |
17 6
|
nfim |
|
19 |
|
nfv |
|
20 |
|
breq2 |
|
21 |
20 8
|
imbi12d |
|
22 |
18 19 21
|
cbvralw |
|
23 |
16 22
|
bitri |
|
24 |
23
|
a1i |
|
25 |
24
|
rexbidva |
|
26 |
2 25
|
bitrd |
|
27 |
1 26
|
ax-mp |
|