Step |
Hyp |
Ref |
Expression |
1 |
|
ineq1 |
|
2 |
1
|
eleq1d |
|
3 |
2
|
imbi2d |
|
4 |
|
elgrug |
|
5 |
4
|
ibi |
|
6 |
|
trin |
|
7 |
6
|
ex |
|
8 |
|
inss1 |
|
9 |
|
ssralv |
|
10 |
8 9
|
ax-mp |
|
11 |
|
inss2 |
|
12 |
|
ssralv |
|
13 |
11 12
|
ax-mp |
|
14 |
|
elin |
|
15 |
14
|
simplbi2 |
|
16 |
|
ssralv |
|
17 |
8 16
|
ax-mp |
|
18 |
|
ssralv |
|
19 |
11 18
|
ax-mp |
|
20 |
|
elin |
|
21 |
20
|
simplbi2 |
|
22 |
21
|
ral2imi |
|
23 |
17 19 22
|
syl2im |
|
24 |
15 23
|
im2anan9 |
|
25 |
|
vex |
|
26 |
|
mapss |
|
27 |
25 8 26
|
mp2an |
|
28 |
|
ssralv |
|
29 |
27 28
|
ax-mp |
|
30 |
25
|
inex1 |
|
31 |
|
vex |
|
32 |
30 31
|
elmap |
|
33 |
|
fss |
|
34 |
11 33
|
mpan2 |
|
35 |
32 34
|
sylbi |
|
36 |
35
|
imim1i |
|
37 |
36
|
alimi |
|
38 |
|
df-ral |
|
39 |
37 38
|
sylibr |
|
40 |
|
elin |
|
41 |
40
|
simplbi2 |
|
42 |
41
|
ral2imi |
|
43 |
29 39 42
|
syl2im |
|
44 |
24 43
|
im2anan9 |
|
45 |
44
|
3impa |
|
46 |
|
df-3an |
|
47 |
|
df-3an |
|
48 |
45 46 47
|
3imtr4g |
|
49 |
48
|
ral2imi |
|
50 |
10 13 49
|
syl2im |
|
51 |
7 50
|
im2anan9 |
|
52 |
5 51
|
syl |
|
53 |
|
elgrug |
|
54 |
30 53
|
ax-mp |
|
55 |
52 54
|
syl6ibr |
|
56 |
3 55
|
vtoclga |
|
57 |
56
|
com12 |
|