Step |
Hyp |
Ref |
Expression |
1 |
|
snssi |
|
2 |
|
snnzg |
|
3 |
|
simpl |
|
4 |
|
snfbas |
|
5 |
1 2 3 4
|
syl2an23an |
|
6 |
|
velpw |
|
7 |
6
|
a1i |
|
8 |
|
snex |
|
9 |
8
|
snid |
|
10 |
|
snssi |
|
11 |
|
sseq1 |
|
12 |
11
|
rspcev |
|
13 |
9 10 12
|
sylancr |
|
14 |
|
intss1 |
|
15 |
|
sstr2 |
|
16 |
14 15
|
syl |
|
17 |
|
snidg |
|
18 |
17
|
adantl |
|
19 |
8
|
intsn |
|
20 |
18 19
|
eleqtrrdi |
|
21 |
|
ssel |
|
22 |
20 21
|
syl5com |
|
23 |
16 22
|
sylan9r |
|
24 |
23
|
rexlimdva |
|
25 |
13 24
|
impbid2 |
|
26 |
7 25
|
anbi12d |
|
27 |
|
eleq2w |
|
28 |
27
|
elrab |
|
29 |
28
|
a1i |
|
30 |
|
elfg |
|
31 |
5 30
|
syl |
|
32 |
26 29 31
|
3bitr4d |
|
33 |
32
|
eqrdv |
|
34 |
5 33
|
jca |
|