Step |
Hyp |
Ref |
Expression |
1 |
|
cphsca.f |
|
2 |
|
cphsca.k |
|
3 |
1 2
|
cphsubrg |
|
4 |
3
|
adantr |
|
5 |
|
cnfldbas |
|
6 |
5
|
subrgss |
|
7 |
4 6
|
syl |
|
8 |
|
simpr1 |
|
9 |
7 8
|
sseldd |
|
10 |
|
simpr2 |
|
11 |
7 10
|
sseldd |
|
12 |
|
simpr3 |
|
13 |
9 11 12
|
divrecd |
|
14 |
1 2
|
cphreccl |
|
15 |
14
|
3adant3r1 |
|
16 |
|
cnfldmul |
|
17 |
16
|
subrgmcl |
|
18 |
4 8 15 17
|
syl3anc |
|
19 |
13 18
|
eqeltrd |
|