Step |
Hyp |
Ref |
Expression |
1 |
|
iba |
|
2 |
|
nnmord |
|
3 |
2
|
3com12 |
|
4 |
1 3
|
sylan9bbr |
|
5 |
4
|
notbid |
|
6 |
|
simpl1 |
|
7 |
|
nnon |
|
8 |
6 7
|
syl |
|
9 |
|
simpl2 |
|
10 |
|
nnon |
|
11 |
9 10
|
syl |
|
12 |
|
ontri1 |
|
13 |
8 11 12
|
syl2anc |
|
14 |
|
simpl3 |
|
15 |
|
nnmcl |
|
16 |
14 6 15
|
syl2anc |
|
17 |
|
nnon |
|
18 |
16 17
|
syl |
|
19 |
|
nnmcl |
|
20 |
14 9 19
|
syl2anc |
|
21 |
|
nnon |
|
22 |
20 21
|
syl |
|
23 |
|
ontri1 |
|
24 |
18 22 23
|
syl2anc |
|
25 |
5 13 24
|
3bitr4d |
|