| Step |
Hyp |
Ref |
Expression |
| 1 |
|
idlsrgtset.1 |
|
| 2 |
|
idlsrgtset.2 |
|
| 3 |
|
idlsrgtset.3 |
|
| 4 |
2
|
fvexi |
|
| 5 |
4
|
mptex |
|
| 6 |
5
|
rnex |
|
| 7 |
|
eqid |
|
| 8 |
7
|
idlsrgstr |
|
| 9 |
|
tsetid |
|
| 10 |
|
snsspr1 |
|
| 11 |
|
ssun2 |
|
| 12 |
10 11
|
sstri |
|
| 13 |
8 9 12
|
strfv |
|
| 14 |
6 13
|
ax-mp |
|
| 15 |
|
eqid |
|
| 16 |
|
eqid |
|
| 17 |
|
eqid |
|
| 18 |
2 15 16 17
|
idlsrgval |
|
| 19 |
1 18
|
eqtrid |
|
| 20 |
19
|
fveq2d |
|
| 21 |
14 20
|
eqtr4id |
|
| 22 |
3 21
|
eqtrid |
|