Step |
Hyp |
Ref |
Expression |
1 |
|
cvmcov.1 |
|
2 |
|
cvmseu.1 |
|
3 |
|
simpr2 |
|
4 |
|
simpr3 |
|
5 |
|
cvmcn |
|
6 |
5
|
adantr |
|
7 |
|
eqid |
|
8 |
2 7
|
cnf |
|
9 |
|
ffn |
|
10 |
|
elpreima |
|
11 |
6 8 9 10
|
4syl |
|
12 |
3 4 11
|
mpbir2and |
|
13 |
|
simpr1 |
|
14 |
1
|
cvmsuni |
|
15 |
13 14
|
syl |
|
16 |
12 15
|
eleqtrrd |
|
17 |
|
eluni2 |
|
18 |
16 17
|
sylib |
|
19 |
|
inelcm |
|
20 |
1
|
cvmsdisj |
|
21 |
20
|
3expb |
|
22 |
13 21
|
sylan |
|
23 |
22
|
ord |
|
24 |
23
|
necon1ad |
|
25 |
19 24
|
syl5 |
|
26 |
25
|
ralrimivva |
|
27 |
|
eleq2w |
|
28 |
27
|
reu4 |
|
29 |
18 26 28
|
sylanbrc |
|