Step |
Hyp |
Ref |
Expression |
1 |
|
uspgrbisymrel.g |
|
2 |
|
uspgrbisymrel.r |
|
3 |
|
fvex |
|
4 |
3
|
pwex |
|
5 |
|
mptexg |
|
6 |
4 5
|
mp1i |
|
7 |
|
eqid |
|
8 |
7 1
|
uspgrex |
|
9 |
|
mptexg |
|
10 |
8 9
|
syl |
|
11 |
|
coexg |
|
12 |
6 10 11
|
syl2anc |
|
13 |
|
eqid |
|
14 |
7 2 13
|
sprsymrelf1o |
|
15 |
|
eqid |
|
16 |
7 1 15
|
uspgrsprf1o |
|
17 |
|
f1oco |
|
18 |
14 16 17
|
syl2anc |
|
19 |
|
f1oeq1 |
|
20 |
19
|
spcegv |
|
21 |
12 18 20
|
sylc |
|