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
|
syl5eq |
|
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 |
|