Step |
Hyp |
Ref |
Expression |
1 |
|
clnbgredg.e |
|
2 |
|
clnbgredg.n |
|
3 |
1
|
eleq2i |
|
4 |
3
|
biimpi |
|
5 |
4
|
3ad2ant1 |
|
6 |
|
simp3 |
|
7 |
5 6
|
jca |
|
8 |
7
|
anim2i |
|
9 |
|
3anass |
|
10 |
8 9
|
sylibr |
|
11 |
|
uhgredgrnv |
|
12 |
10 11
|
syl |
|
13 |
|
simp2 |
|
14 |
5 13
|
jca |
|
15 |
14
|
anim2i |
|
16 |
|
3anass |
|
17 |
15 16
|
sylibr |
|
18 |
|
uhgredgrnv |
|
19 |
17 18
|
syl |
|
20 |
|
simpr1 |
|
21 |
|
sseq2 |
|
22 |
21
|
adantl |
|
23 |
|
prssi |
|
24 |
23
|
3adant1 |
|
25 |
24
|
adantl |
|
26 |
20 22 25
|
rspcedvd |
|
27 |
26
|
olcd |
|
28 |
|
eqid |
|
29 |
28 1
|
clnbgrel |
|
30 |
12 19 27 29
|
syl21anbrc |
|
31 |
2
|
eleq2i |
|
32 |
30 31
|
sylibr |
|