Step |
Hyp |
Ref |
Expression |
1 |
|
0prjspnlem.b |
|
2 |
|
0prjspnlem.w |
|
3 |
|
0prjspnlem.1 |
|
4 |
|
drngnzr |
|
5 |
|
ovex |
|
6 |
|
c0ex |
|
7 |
6
|
snid |
|
8 |
|
fz0sn |
|
9 |
7 8
|
eleqtrri |
|
10 |
|
nzrring |
|
11 |
|
eqid |
|
12 |
|
eqid |
|
13 |
11 2 12
|
uvccl |
|
14 |
10 13
|
syl3an1 |
|
15 |
|
eqid |
|
16 |
11 2 12 15
|
uvcn0 |
|
17 |
|
eldifsn |
|
18 |
14 16 17
|
sylanbrc |
|
19 |
5 9 18
|
mp3an23 |
|
20 |
4 19
|
syl |
|
21 |
20 3 1
|
3eltr4g |
|