Step |
Hyp |
Ref |
Expression |
1 |
|
fourierdlem2.1 |
|
2 |
|
oveq2 |
|
3 |
2
|
oveq2d |
|
4 |
|
fveqeq2 |
|
5 |
4
|
anbi2d |
|
6 |
|
oveq2 |
|
7 |
6
|
raleqdv |
|
8 |
5 7
|
anbi12d |
|
9 |
3 8
|
rabeqbidv |
|
10 |
|
ovex |
|
11 |
10
|
rabex |
|
12 |
9 1 11
|
fvmpt |
|
13 |
12
|
eleq2d |
|
14 |
|
fveq1 |
|
15 |
14
|
eqeq1d |
|
16 |
|
fveq1 |
|
17 |
16
|
eqeq1d |
|
18 |
15 17
|
anbi12d |
|
19 |
|
fveq1 |
|
20 |
|
fveq1 |
|
21 |
19 20
|
breq12d |
|
22 |
21
|
ralbidv |
|
23 |
18 22
|
anbi12d |
|
24 |
23
|
elrab |
|
25 |
13 24
|
syl6bb |
|