| Step |
Hyp |
Ref |
Expression |
| 1 |
|
dvhset.h |
|
| 2 |
|
dvhset.t |
|
| 3 |
|
dvhset.e |
|
| 4 |
|
dvhset.d |
|
| 5 |
|
dvhset.u |
|
| 6 |
1
|
dvhfset |
|
| 7 |
6
|
fveq1d |
|
| 8 |
5 7
|
eqtrid |
|
| 9 |
|
fveq2 |
|
| 10 |
9 2
|
eqtr4di |
|
| 11 |
|
fveq2 |
|
| 12 |
11 3
|
eqtr4di |
|
| 13 |
10 12
|
xpeq12d |
|
| 14 |
13
|
opeq2d |
|
| 15 |
10
|
mpteq1d |
|
| 16 |
15
|
opeq2d |
|
| 17 |
13 13 16
|
mpoeq123dv |
|
| 18 |
17
|
opeq2d |
|
| 19 |
|
fveq2 |
|
| 20 |
19 4
|
eqtr4di |
|
| 21 |
20
|
opeq2d |
|
| 22 |
14 18 21
|
tpeq123d |
|
| 23 |
|
eqidd |
|
| 24 |
12 13 23
|
mpoeq123dv |
|
| 25 |
24
|
opeq2d |
|
| 26 |
25
|
sneqd |
|
| 27 |
22 26
|
uneq12d |
|
| 28 |
|
eqid |
|
| 29 |
|
tpex |
|
| 30 |
|
snex |
|
| 31 |
29 30
|
unex |
|
| 32 |
27 28 31
|
fvmpt |
|
| 33 |
8 32
|
sylan9eq |
|