Step |
Hyp |
Ref |
Expression |
1 |
|
snstrvtxval.v |
|
2 |
|
snstrvtxval.g |
|
3 |
|
iedgval |
|
4 |
3
|
a1i |
|
5 |
|
necom |
|
6 |
|
fvex |
|
7 |
6 1 2
|
funsndifnop |
|
8 |
5 7
|
sylbi |
|
9 |
8
|
iffalsed |
|
10 |
|
snex |
|
11 |
10
|
a1i |
|
12 |
2 11
|
eqeltrid |
|
13 |
|
edgfndxid |
|
14 |
2 12 13
|
mp2b |
|
15 |
|
slotsbaseefdif |
|
16 |
15
|
nesymi |
|
17 |
16
|
a1i |
|
18 |
|
fvex |
|
19 |
18
|
elsn |
|
20 |
17 19
|
sylnibr |
|
21 |
2
|
dmeqi |
|
22 |
|
dmsnopg |
|
23 |
1 22
|
mp1i |
|
24 |
21 23
|
syl5eq |
|
25 |
20 24
|
neleqtrrd |
|
26 |
|
ndmfv |
|
27 |
25 26
|
syl |
|
28 |
14 27
|
syl5eq |
|
29 |
4 9 28
|
3eqtrd |
|