Step |
Hyp |
Ref |
Expression |
1 |
|
simpll |
|
2 |
|
cnvimass |
|
3 |
2
|
sseli |
|
4 |
3
|
adantl |
|
5 |
|
fvex |
|
6 |
|
fvimacnvi |
|
7 |
6
|
adantlr |
|
8 |
|
eliin |
|
9 |
8
|
biimpa |
|
10 |
5 7 9
|
sylancr |
|
11 |
|
fvimacnv |
|
12 |
11
|
ralbidv |
|
13 |
12
|
biimpa |
|
14 |
1 4 10 13
|
syl21anc |
|
15 |
|
eliin |
|
16 |
15
|
elv |
|
17 |
14 16
|
sylibr |
|
18 |
|
simpll |
|
19 |
15
|
biimpd |
|
20 |
19
|
elv |
|
21 |
20
|
adantl |
|
22 |
|
fvimacnvi |
|
23 |
22
|
ex |
|
24 |
23
|
ralimdv |
|
25 |
18 21 24
|
sylc |
|
26 |
5 8
|
ax-mp |
|
27 |
25 26
|
sylibr |
|
28 |
|
r19.2zb |
|
29 |
28
|
biimpi |
|
30 |
|
cnvimass |
|
31 |
30
|
sseli |
|
32 |
31
|
rexlimivw |
|
33 |
29 32
|
syl6 |
|
34 |
16 33
|
syl5bi |
|
35 |
34
|
adantl |
|
36 |
35
|
imp |
|
37 |
|
fvimacnv |
|
38 |
18 36 37
|
syl2anc |
|
39 |
27 38
|
mpbid |
|
40 |
17 39
|
impbida |
|
41 |
40
|
eqrdv |
|