Step |
Hyp |
Ref |
Expression |
1 |
|
funimage |
|
2 |
|
funrel |
|
3 |
1 2
|
ax-mp |
|
4 |
|
mptrel |
|
5 |
|
vex |
|
6 |
|
vex |
|
7 |
5 6
|
breldm |
|
8 |
|
fnimage |
|
9 |
8
|
fndmi |
|
10 |
7 9
|
eleqtrdi |
|
11 |
5 6
|
breldm |
|
12 |
|
eqid |
|
13 |
12
|
dmmpt |
|
14 |
|
rabab |
|
15 |
13 14
|
eqtri |
|
16 |
11 15
|
eleqtrdi |
|
17 |
|
imaeq2 |
|
18 |
17
|
eleq1d |
|
19 |
5 18
|
elab |
|
20 |
5 6
|
brimage |
|
21 |
|
eqcom |
|
22 |
17 12
|
fvmptg |
|
23 |
5 22
|
mpan |
|
24 |
23
|
eqeq1d |
|
25 |
|
funmpt |
|
26 |
|
df-fn |
|
27 |
25 15 26
|
mpbir2an |
|
28 |
19
|
biimpri |
|
29 |
|
fnbrfvb |
|
30 |
27 28 29
|
sylancr |
|
31 |
24 30
|
bitr3d |
|
32 |
21 31
|
syl5bb |
|
33 |
20 32
|
syl5bb |
|
34 |
19 33
|
sylbi |
|
35 |
10 16 34
|
pm5.21nii |
|
36 |
3 4 35
|
eqbrriv |
|