Step |
Hyp |
Ref |
Expression |
1 |
|
dochnoncon.h |
|
2 |
|
dochnoncon.u |
|
3 |
|
dochnoncon.s |
|
4 |
|
dochnoncon.z |
|
5 |
|
dochnoncon.o |
|
6 |
|
dochnel2.k |
|
7 |
|
dochnel2.t |
|
8 |
|
dochnel2.x |
|
9 |
8
|
eldifbd |
|
10 |
8
|
eldifad |
|
11 |
|
elin |
|
12 |
1 2 3 4 5
|
dochnoncon |
|
13 |
6 7 12
|
syl2anc |
|
14 |
13
|
eleq2d |
|
15 |
11 14
|
bitr3id |
|
16 |
15
|
biimpd |
|
17 |
10 16
|
mpand |
|
18 |
9 17
|
mtod |
|