Step |
Hyp |
Ref |
Expression |
1 |
|
cvmcov.1 |
|
2 |
|
df-ne |
|
3 |
1
|
cvmsi |
|
4 |
3
|
simp3d |
|
5 |
4
|
simprd |
|
6 |
|
simpl |
|
7 |
6
|
ralimi |
|
8 |
5 7
|
syl |
|
9 |
|
sneq |
|
10 |
9
|
difeq2d |
|
11 |
|
ineq1 |
|
12 |
11
|
eqeq1d |
|
13 |
10 12
|
raleqbidv |
|
14 |
13
|
rspccva |
|
15 |
8 14
|
sylan |
|
16 |
|
necom |
|
17 |
|
eldifsn |
|
18 |
17
|
biimpri |
|
19 |
16 18
|
sylan2b |
|
20 |
|
ineq2 |
|
21 |
20
|
eqeq1d |
|
22 |
21
|
rspccv |
|
23 |
15 19 22
|
syl2im |
|
24 |
23
|
expd |
|
25 |
24
|
3impia |
|
26 |
2 25
|
syl5bir |
|
27 |
26
|
orrd |
|