Step |
Hyp |
Ref |
Expression |
1 |
|
curry2ima.1 |
|
2 |
|
simp1 |
|
3 |
|
dffn2 |
|
4 |
2 3
|
sylib |
|
5 |
|
simp2 |
|
6 |
1
|
curry2f |
|
7 |
4 5 6
|
syl2anc |
|
8 |
7
|
ffund |
|
9 |
|
simp3 |
|
10 |
7
|
fdmd |
|
11 |
9 10
|
sseqtrrd |
|
12 |
|
dfimafn |
|
13 |
8 11 12
|
syl2anc |
|
14 |
1
|
curry2val |
|
15 |
14
|
3adant3 |
|
16 |
15
|
eqeq1d |
|
17 |
|
eqcom |
|
18 |
16 17
|
bitrdi |
|
19 |
18
|
rexbidv |
|
20 |
19
|
abbidv |
|
21 |
13 20
|
eqtrd |
|