Step |
Hyp |
Ref |
Expression |
1 |
|
disjxp1.1 |
|
2 |
|
animorrl |
|
3 |
|
csbxp |
|
4 |
|
csbxp |
|
5 |
3 4
|
ineq12i |
|
6 |
|
simpll |
|
7 |
|
simplrl |
|
8 |
|
simplrr |
|
9 |
6 7 8
|
jca31 |
|
10 |
|
simpr |
|
11 |
10
|
neneqd |
|
12 |
|
disjors |
|
13 |
1 12
|
sylib |
|
14 |
13
|
r19.21bi |
|
15 |
14
|
r19.21bi |
|
16 |
15
|
ord |
|
17 |
9 11 16
|
sylc |
|
18 |
|
xpdisj1 |
|
19 |
17 18
|
syl |
|
20 |
5 19
|
syl5eq |
|
21 |
20
|
olcd |
|
22 |
2 21
|
pm2.61dane |
|
23 |
22
|
ralrimivva |
|
24 |
|
disjors |
|
25 |
23 24
|
sylibr |
|