Step |
Hyp |
Ref |
Expression |
1 |
|
stoweidlem12.1 |
|
2 |
|
stoweidlem12.2 |
|
3 |
|
stoweidlem12.3 |
|
4 |
|
stoweidlem12.4 |
|
5 |
|
simpr |
|
6 |
|
1red |
|
7 |
2
|
ffvelrnda |
|
8 |
3
|
adantr |
|
9 |
7 8
|
reexpcld |
|
10 |
6 9
|
resubcld |
|
11 |
4 3
|
jca |
|
12 |
11
|
adantr |
|
13 |
|
nn0expcl |
|
14 |
12 13
|
syl |
|
15 |
10 14
|
reexpcld |
|
16 |
1
|
fvmpt2 |
|
17 |
5 15 16
|
syl2anc |
|