Step |
Hyp |
Ref |
Expression |
1 |
|
hdmap1val.h |
|
2 |
|
elex |
|
3 |
|
fveq2 |
|
4 |
3 1
|
eqtr4di |
|
5 |
|
fveq2 |
|
6 |
5
|
fveq1d |
|
7 |
|
fveq2 |
|
8 |
7
|
fveq1d |
|
9 |
|
fveq2 |
|
10 |
9
|
fveq1d |
|
11 |
10
|
sbceq1d |
|
12 |
11
|
sbcbidv |
|
13 |
12
|
sbcbidv |
|
14 |
8 13
|
sbceqbid |
|
15 |
14
|
sbcbidv |
|
16 |
15
|
sbcbidv |
|
17 |
6 16
|
sbceqbid |
|
18 |
17
|
abbidv |
|
19 |
4 18
|
mpteq12dv |
|
20 |
|
df-hdmap1 |
|
21 |
19 20 1
|
mptfvmpt |
|
22 |
2 21
|
syl |
|