Step |
Hyp |
Ref |
Expression |
1 |
|
elee |
|
2 |
|
ovex |
|
3 |
|
eqid |
|
4 |
2 3
|
fnmpti |
|
5 |
|
df-f |
|
6 |
4 5
|
mpbiran |
|
7 |
3
|
rnmpt |
|
8 |
7
|
sseq1i |
|
9 |
|
abss |
|
10 |
|
nfre1 |
|
11 |
|
nfv |
|
12 |
10 11
|
nfim |
|
13 |
12
|
nfal |
|
14 |
|
r19.23v |
|
15 |
14
|
albii |
|
16 |
|
ralcom4 |
|
17 |
|
rsp |
|
18 |
2
|
clel2 |
|
19 |
17 18
|
syl6ibr |
|
20 |
16 19
|
sylbir |
|
21 |
15 20
|
sylbir |
|
22 |
13 21
|
ralrimi |
|
23 |
|
nfra1 |
|
24 |
|
rsp |
|
25 |
|
eleq1a |
|
26 |
24 25
|
syl6 |
|
27 |
23 11 26
|
rexlimd |
|
28 |
27
|
alrimiv |
|
29 |
22 28
|
impbii |
|
30 |
9 29
|
bitri |
|
31 |
8 30
|
bitri |
|
32 |
6 31
|
bitri |
|
33 |
1 32
|
bitrdi |
|