| Step |
Hyp |
Ref |
Expression |
| 1 |
|
erngset.h-r |
|
| 2 |
|
erngset.t-r |
|
| 3 |
|
erngset.e-r |
|
| 4 |
|
erngset.d-r |
|
| 5 |
1
|
erngfset-rN |
|
| 6 |
5
|
fveq1d |
|
| 7 |
4 6
|
eqtrid |
|
| 8 |
|
fveq2 |
|
| 9 |
8
|
opeq2d |
|
| 10 |
|
tpeq1 |
|
| 11 |
3
|
opeq2i |
|
| 12 |
|
tpeq1 |
|
| 13 |
11 12
|
ax-mp |
|
| 14 |
10 13
|
eqtr4di |
|
| 15 |
9 14
|
syl |
|
| 16 |
8 3
|
eqtr4di |
|
| 17 |
|
fveq2 |
|
| 18 |
17 2
|
eqtr4di |
|
| 19 |
|
eqidd |
|
| 20 |
18 19
|
mpteq12dv |
|
| 21 |
16 16 20
|
mpoeq123dv |
|
| 22 |
21
|
opeq2d |
|
| 23 |
22
|
tpeq2d |
|
| 24 |
|
eqidd |
|
| 25 |
16 16 24
|
mpoeq123dv |
|
| 26 |
25
|
opeq2d |
|
| 27 |
26
|
tpeq3d |
|
| 28 |
15 23 27
|
3eqtrd |
|
| 29 |
|
eqid |
|
| 30 |
|
tpex |
|
| 31 |
28 29 30
|
fvmpt |
|
| 32 |
7 31
|
sylan9eq |
|