Step |
Hyp |
Ref |
Expression |
1 |
|
ajfval.1 |
|
2 |
|
ajfval.2 |
|
3 |
|
ajfval.3 |
|
4 |
|
ajfval.4 |
|
5 |
|
ajfval.5 |
|
6 |
|
fveq2 |
|
7 |
6 1
|
eqtr4di |
|
8 |
7
|
feq2d |
|
9 |
7
|
feq3d |
|
10 |
|
fveq2 |
|
11 |
10 3
|
eqtr4di |
|
12 |
11
|
oveqd |
|
13 |
12
|
eqeq2d |
|
14 |
13
|
ralbidv |
|
15 |
7 14
|
raleqbidv |
|
16 |
8 9 15
|
3anbi123d |
|
17 |
16
|
opabbidv |
|
18 |
|
fveq2 |
|
19 |
18 2
|
eqtr4di |
|
20 |
19
|
feq3d |
|
21 |
19
|
feq2d |
|
22 |
|
fveq2 |
|
23 |
22 4
|
eqtr4di |
|
24 |
23
|
oveqd |
|
25 |
24
|
eqeq1d |
|
26 |
19 25
|
raleqbidv |
|
27 |
26
|
ralbidv |
|
28 |
20 21 27
|
3anbi123d |
|
29 |
28
|
opabbidv |
|
30 |
|
df-aj |
|
31 |
|
ovex |
|
32 |
|
ovex |
|
33 |
31 32
|
xpex |
|
34 |
2
|
fvexi |
|
35 |
1
|
fvexi |
|
36 |
34 35
|
elmap |
|
37 |
35 34
|
elmap |
|
38 |
36 37
|
anbi12i |
|
39 |
38
|
biimpri |
|
40 |
39
|
3adant3 |
|
41 |
40
|
ssopab2i |
|
42 |
|
df-xp |
|
43 |
41 42
|
sseqtrri |
|
44 |
33 43
|
ssexi |
|
45 |
17 29 30 44
|
ovmpo |
|
46 |
5 45
|
syl5eq |
|