Step |
Hyp |
Ref |
Expression |
1 |
|
0sno |
|
2 |
|
slerflex |
|
3 |
1 2
|
ax-mp |
|
4 |
1
|
elexi |
|
5 |
|
breq2 |
|
6 |
4 5
|
rexsn |
|
7 |
3 6
|
mpbir |
|
8 |
7
|
orci |
|
9 |
|
0elpw |
|
10 |
|
nulssgt |
|
11 |
9 10
|
ax-mp |
|
12 |
|
snssi |
|
13 |
1 12
|
ax-mp |
|
14 |
|
snex |
|
15 |
14
|
elpw |
|
16 |
13 15
|
mpbir |
|
17 |
|
nulssgt |
|
18 |
16 17
|
ax-mp |
|
19 |
|
df-0s |
|
20 |
|
df-1s |
|
21 |
|
sltrec |
|
22 |
11 18 19 20 21
|
mp4an |
|
23 |
8 22
|
mpbir |
|