Step |
Hyp |
Ref |
Expression |
1 |
|
exp11nnd.1 |
|
2 |
|
exp11nnd.2 |
|
3 |
|
exp11nnd.3 |
|
4 |
|
exp11nnd.4 |
|
5 |
1
|
rpred |
|
6 |
3
|
nnnn0d |
|
7 |
5 6
|
reexpcld |
|
8 |
2
|
rpred |
|
9 |
8 6
|
reexpcld |
|
10 |
7 9
|
lttri3d |
|
11 |
4 10
|
mpbid |
|
12 |
1 2 3
|
ltexp1d |
|
13 |
12
|
notbid |
|
14 |
2 1 3
|
ltexp1d |
|
15 |
14
|
notbid |
|
16 |
13 15
|
anbi12d |
|
17 |
11 16
|
mpbird |
|
18 |
5 8
|
lttri3d |
|
19 |
17 18
|
mpbird |
|