Step |
Hyp |
Ref |
Expression |
1 |
|
2ndctop |
|
2 |
|
is2ndc |
|
3 |
|
ssrab2 |
|
4 |
|
bastg |
|
5 |
4
|
3ad2ant1 |
|
6 |
3 5
|
sstrid |
|
7 |
|
fvex |
|
8 |
7
|
elpw2 |
|
9 |
6 8
|
sylibr |
|
10 |
|
vex |
|
11 |
|
ssdomg |
|
12 |
10 3 11
|
mp2 |
|
13 |
|
simp2 |
|
14 |
|
domtr |
|
15 |
12 13 14
|
sylancr |
|
16 |
|
eltg2b |
|
17 |
16
|
3ad2ant1 |
|
18 |
|
elequ1 |
|
19 |
18
|
anbi1d |
|
20 |
19
|
rexbidv |
|
21 |
20
|
rspccv |
|
22 |
|
id |
|
23 |
22
|
adantrr |
|
24 |
|
elequ2 |
|
25 |
24
|
elrab |
|
26 |
23 25
|
sylibr |
|
27 |
|
simprr |
|
28 |
|
elequ2 |
|
29 |
|
sseq1 |
|
30 |
28 29
|
anbi12d |
|
31 |
30
|
rspcev |
|
32 |
26 27 31
|
syl2an2 |
|
33 |
32
|
rexlimdvaa |
|
34 |
21 33
|
syl9r |
|
35 |
17 34
|
sylbid |
|
36 |
35
|
ralrimiv |
|
37 |
|
breq1 |
|
38 |
|
rexeq |
|
39 |
38
|
imbi2d |
|
40 |
39
|
ralbidv |
|
41 |
37 40
|
anbi12d |
|
42 |
41
|
rspcev |
|
43 |
9 15 36 42
|
syl12anc |
|
44 |
43
|
3expia |
|
45 |
|
unieq |
|
46 |
45
|
eleq2d |
|
47 |
|
pweq |
|
48 |
|
raleq |
|
49 |
48
|
anbi2d |
|
50 |
47 49
|
rexeqbidv |
|
51 |
46 50
|
imbi12d |
|
52 |
44 51
|
syl5ibcom |
|
53 |
52
|
expimpd |
|
54 |
53
|
rexlimiv |
|
55 |
2 54
|
sylbi |
|
56 |
55
|
ralrimiv |
|
57 |
|
eqid |
|
58 |
57
|
is1stc2 |
|
59 |
1 56 58
|
sylanbrc |
|