Step |
Hyp |
Ref |
Expression |
1 |
|
ssltss1 |
|
2 |
|
ssltex1 |
|
3 |
|
ssltss2 |
|
4 |
|
ssltex2 |
|
5 |
|
ssltsep |
|
6 |
|
noeta |
|
7 |
1 2 3 4 5 6
|
syl221anc |
|
8 |
|
brsslt |
|
9 |
|
df-3an |
|
10 |
9
|
bianass |
|
11 |
8 10
|
bitri |
|
12 |
2
|
adantr |
|
13 |
|
snex |
|
14 |
12 13
|
jctir |
|
15 |
1
|
adantr |
|
16 |
|
snssi |
|
17 |
16
|
adantl |
|
18 |
14 15 17
|
jca32 |
|
19 |
18
|
biantrurd |
|
20 |
19
|
bicomd |
|
21 |
|
vex |
|
22 |
|
breq2 |
|
23 |
21 22
|
ralsn |
|
24 |
23
|
ralbii |
|
25 |
20 24
|
syl6bb |
|
26 |
11 25
|
syl5bb |
|
27 |
|
brsslt |
|
28 |
|
df-3an |
|
29 |
28
|
bianass |
|
30 |
27 29
|
bitri |
|
31 |
4
|
adantr |
|
32 |
31 13
|
jctil |
|
33 |
3
|
adantr |
|
34 |
32 17 33
|
jca32 |
|
35 |
34
|
biantrurd |
|
36 |
35
|
bicomd |
|
37 |
30 36
|
syl5bb |
|
38 |
|
breq1 |
|
39 |
38
|
ralbidv |
|
40 |
21 39
|
ralsn |
|
41 |
37 40
|
syl6bb |
|
42 |
26 41
|
3anbi12d |
|
43 |
42
|
rexbidva |
|
44 |
7 43
|
mpbird |
|