Step |
Hyp |
Ref |
Expression |
1 |
|
odm1inv.x |
|
2 |
|
odm1inv.o |
|
3 |
|
odm1inv.t |
|
4 |
|
odm1inv.i |
|
5 |
|
odm1inv.g |
|
6 |
|
odm1inv.1 |
|
7 |
|
eqid |
|
8 |
1 2 3 7
|
odid |
|
9 |
6 8
|
syl |
|
10 |
1 3
|
mulg1 |
|
11 |
6 10
|
syl |
|
12 |
9 11
|
oveq12d |
|
13 |
1 2 6
|
odcld |
|
14 |
13
|
nn0zd |
|
15 |
|
1zzd |
|
16 |
|
eqid |
|
17 |
1 3 16
|
mulgsubdir |
|
18 |
5 14 15 6 17
|
syl13anc |
|
19 |
1 16 4 7
|
grpinvval2 |
|
20 |
5 6 19
|
syl2anc |
|
21 |
12 18 20
|
3eqtr4d |
|