Step |
Hyp |
Ref |
Expression |
1 |
|
n0 |
|
2 |
|
n0 |
|
3 |
1 2
|
anbi12i |
|
4 |
|
exdistrv |
|
5 |
3 4
|
bitr4i |
|
6 |
|
opex |
|
7 |
|
eleq1 |
|
8 |
|
opelxp |
|
9 |
7 8
|
bitrdi |
|
10 |
6 9
|
spcev |
|
11 |
|
n0 |
|
12 |
10 11
|
sylibr |
|
13 |
12
|
exlimivv |
|
14 |
5 13
|
sylbi |
|
15 |
|
xpeq1 |
|
16 |
|
0xp |
|
17 |
15 16
|
eqtrdi |
|
18 |
17
|
necon3i |
|
19 |
|
xpeq2 |
|
20 |
|
xp0 |
|
21 |
19 20
|
eqtrdi |
|
22 |
21
|
necon3i |
|
23 |
18 22
|
jca |
|
24 |
14 23
|
impbii |
|