Step |
Hyp |
Ref |
Expression |
1 |
|
cfili |
|
2 |
1
|
adantll |
|
3 |
|
elfg |
|
4 |
3
|
ad3antlr |
|
5 |
|
ssralv |
|
6 |
5
|
ralimdv |
|
7 |
|
ssralv |
|
8 |
6 7
|
syldc |
|
9 |
8
|
reximdv |
|
10 |
9
|
com12 |
|
11 |
10
|
adantl |
|
12 |
4 11
|
syl6bi |
|
13 |
12
|
rexlimdv |
|
14 |
2 13
|
mpd |
|
15 |
14
|
ralrimiva |
|
16 |
15
|
ex |
|
17 |
|
ssfg |
|
18 |
17
|
adantl |
|
19 |
|
ssrexv |
|
20 |
19
|
ralimdv |
|
21 |
18 20
|
syl |
|
22 |
|
fgcl |
|
23 |
22
|
adantl |
|
24 |
21 23
|
jctild |
|
25 |
|
iscfil2 |
|
26 |
25
|
adantr |
|
27 |
24 26
|
sylibrd |
|
28 |
16 27
|
impbid |
|