Step |
Hyp |
Ref |
Expression |
1 |
|
df-3an |
|
2 |
|
seglecgr12im |
|
3 |
1 2
|
syl5bir |
|
4 |
3
|
expd |
|
5 |
|
simp11 |
|
6 |
|
simp12 |
|
7 |
|
simp13 |
|
8 |
|
simp23 |
|
9 |
|
simp31 |
|
10 |
|
cgrcom |
|
11 |
5 6 7 8 9 10
|
syl122anc |
|
12 |
|
simp21 |
|
13 |
|
simp22 |
|
14 |
|
simp32 |
|
15 |
|
simp33 |
|
16 |
|
cgrcom |
|
17 |
5 12 13 14 15 16
|
syl122anc |
|
18 |
11 17
|
anbi12d |
|
19 |
|
df-3an |
|
20 |
|
seglecgr12im |
|
21 |
5 8 9 14 15 6 7 12 13 20
|
syl333anc |
|
22 |
19 21
|
syl5bir |
|
23 |
22
|
expd |
|
24 |
18 23
|
sylbid |
|
25 |
4 24
|
impbidd |
|