| 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 |
|