Step |
Hyp |
Ref |
Expression |
1 |
|
funopab |
|
2 |
|
nfa1 |
|
3 |
2
|
mof |
|
4 |
3
|
albii |
|
5 |
1 4
|
bitr2i |
|
6 |
|
vex |
|
7 |
|
eleq2w2 |
|
8 |
6 7
|
mpbiri |
|
9 |
|
imafi |
|
10 |
8 9
|
sylan2 |
|
11 |
10
|
elexd |
|
12 |
|
nfv |
|
13 |
2
|
nfopab |
|
14 |
13
|
nfel2 |
|
15 |
12 14
|
nfan |
|
16 |
15
|
nfex |
|
17 |
16
|
nfab |
|
18 |
17
|
issetf |
|
19 |
|
abeq2 |
|
20 |
19
|
exbii |
|
21 |
|
opabidw |
|
22 |
21
|
anbi2i |
|
23 |
22
|
exbii |
|
24 |
23
|
bibi2i |
|
25 |
24
|
albii |
|
26 |
25
|
exbii |
|
27 |
18 20 26
|
3bitrri |
|
28 |
|
dfima3 |
|
29 |
|
nfv |
|
30 |
|
nfopab2 |
|
31 |
30
|
nfel2 |
|
32 |
29 31
|
nfan |
|
33 |
32
|
nfex |
|
34 |
|
nfv |
|
35 |
|
nfv |
|
36 |
|
nfopab1 |
|
37 |
36
|
nfel2 |
|
38 |
35 37
|
nfan |
|
39 |
|
nfv |
|
40 |
|
elequ1 |
|
41 |
|
opeq1 |
|
42 |
41
|
eleq1d |
|
43 |
40 42
|
anbi12d |
|
44 |
38 39 43
|
cbvexv1 |
|
45 |
|
opeq2 |
|
46 |
45
|
eleq1d |
|
47 |
46
|
anbi2d |
|
48 |
47
|
exbidv |
|
49 |
44 48
|
syl5bb |
|
50 |
33 34 49
|
cbvabw |
|
51 |
28 50
|
eqtri |
|
52 |
51
|
eleq1i |
|
53 |
27 52
|
bitr4i |
|
54 |
11 53
|
sylibr |
|
55 |
5 54
|
sylanb |
|
56 |
55
|
expcom |
|