Step |
Hyp |
Ref |
Expression |
1 |
|
lss0v.x |
|
2 |
|
lss0v.o |
|
3 |
|
lss0v.z |
|
4 |
|
lss0v.l |
|
5 |
|
0ss |
|
6 |
|
eqid |
|
7 |
|
eqid |
|
8 |
1 6 7 4
|
lsslsp |
|
9 |
5 8
|
mp3an3 |
|
10 |
2 6
|
lsp0 |
|
11 |
10
|
adantr |
|
12 |
1 4
|
lsslmod |
|
13 |
3 7
|
lsp0 |
|
14 |
12 13
|
syl |
|
15 |
9 11 14
|
3eqtr3rd |
|
16 |
15
|
unieqd |
|
17 |
3
|
fvexi |
|
18 |
17
|
unisn |
|
19 |
2
|
fvexi |
|
20 |
19
|
unisn |
|
21 |
16 18 20
|
3eqtr3g |
|