Step |
Hyp |
Ref |
Expression |
1 |
|
supiso.1 |
|
2 |
|
supiso.2 |
|
3 |
|
supisoex.3 |
|
4 |
|
simpl |
|
5 |
|
simpr |
|
6 |
4 5
|
supisolem |
|
7 |
|
isof1o |
|
8 |
|
f1of |
|
9 |
4 7 8
|
3syl |
|
10 |
9
|
ffvelrnda |
|
11 |
|
breq1 |
|
12 |
11
|
notbid |
|
13 |
12
|
ralbidv |
|
14 |
|
breq2 |
|
15 |
14
|
imbi1d |
|
16 |
15
|
ralbidv |
|
17 |
13 16
|
anbi12d |
|
18 |
17
|
rspcev |
|
19 |
18
|
ex |
|
20 |
10 19
|
syl |
|
21 |
6 20
|
sylbid |
|
22 |
21
|
rexlimdva |
|
23 |
1 2 22
|
syl2anc |
|
24 |
3 23
|
mpd |
|