Step |
Hyp |
Ref |
Expression |
1 |
|
usgruhgr |
|
2 |
1
|
3ad2ant2 |
|
3 |
|
opvtxfv |
|
4 |
3
|
3ad2ant1 |
|
5 |
|
hasheq0 |
|
6 |
5
|
biimpd |
|
7 |
6
|
adantr |
|
8 |
7
|
a1d |
|
9 |
8
|
3imp |
|
10 |
4 9
|
eqtrd |
|
11 |
|
eqid |
|
12 |
|
eqid |
|
13 |
11 12
|
uhgr0v0e |
|
14 |
2 10 13
|
syl2anc |
|
15 |
|
0fin |
|
16 |
14 15
|
eqeltrdi |
|
17 |
|
eqid |
|
18 |
17 12
|
usgredgffibi |
|
19 |
18
|
3ad2ant2 |
|
20 |
|
opiedgfv |
|
21 |
20
|
3ad2ant1 |
|
22 |
21
|
eleq1d |
|
23 |
19 22
|
bitrd |
|
24 |
16 23
|
mpbid |
|