Step |
Hyp |
Ref |
Expression |
1 |
|
dchrmhm.g |
|
2 |
|
dchrmhm.z |
|
3 |
|
dchrmhm.b |
|
4 |
|
dchrelbas4.l |
|
5 |
|
dchrzrh1.x |
|
6 |
1 3
|
dchrrcl |
|
7 |
5 6
|
syl |
|
8 |
7
|
nnnn0d |
|
9 |
2
|
zncrng |
|
10 |
|
crngring |
|
11 |
|
eqid |
|
12 |
4 11
|
zrh1 |
|
13 |
8 9 10 12
|
4syl |
|
14 |
13
|
fveq2d |
|
15 |
1 2 3
|
dchrmhm |
|
16 |
15 5
|
sselid |
|
17 |
|
eqid |
|
18 |
17 11
|
ringidval |
|
19 |
|
eqid |
|
20 |
|
cnfld1 |
|
21 |
19 20
|
ringidval |
|
22 |
18 21
|
mhm0 |
|
23 |
16 22
|
syl |
|
24 |
14 23
|
eqtrd |
|