Step |
Hyp |
Ref |
Expression |
1 |
|
f1mpt.1 |
|
2 |
|
f1mpt.2 |
|
3 |
|
nfmpt1 |
|
4 |
1 3
|
nfcxfr |
|
5 |
|
nfcv |
|
6 |
4 5
|
dff13f |
|
7 |
1
|
fmpt |
|
8 |
7
|
anbi1i |
|
9 |
2
|
eleq1d |
|
10 |
9
|
cbvralvw |
|
11 |
|
raaanv |
|
12 |
1
|
fvmpt2 |
|
13 |
2 1
|
fvmptg |
|
14 |
12 13
|
eqeqan12d |
|
15 |
14
|
an4s |
|
16 |
15
|
imbi1d |
|
17 |
16
|
ex |
|
18 |
17
|
ralimdva |
|
19 |
|
ralbi |
|
20 |
18 19
|
syl6 |
|
21 |
20
|
ralimia |
|
22 |
|
ralbi |
|
23 |
21 22
|
syl |
|
24 |
11 23
|
sylbir |
|
25 |
10 24
|
sylan2b |
|
26 |
25
|
anidms |
|
27 |
26
|
pm5.32i |
|
28 |
6 8 27
|
3bitr2i |
|