Step |
Hyp |
Ref |
Expression |
1 |
|
trleile.b |
|
2 |
|
trleile.l |
|
3 |
|
eqid |
|
4 |
1 3
|
tleile |
|
5 |
|
3simpc |
|
6 |
|
brxp |
|
7 |
5 6
|
sylibr |
|
8 |
|
brin |
|
9 |
8
|
rbaib |
|
10 |
7 9
|
syl |
|
11 |
5
|
ancomd |
|
12 |
|
brxp |
|
13 |
11 12
|
sylibr |
|
14 |
|
brin |
|
15 |
14
|
rbaib |
|
16 |
13 15
|
syl |
|
17 |
10 16
|
orbi12d |
|
18 |
4 17
|
mpbird |
|
19 |
2
|
breqi |
|
20 |
2
|
breqi |
|
21 |
19 20
|
orbi12i |
|
22 |
18 21
|
sylibr |
|