Step |
Hyp |
Ref |
Expression |
1 |
|
ltrnset.l |
|
2 |
|
ltrnset.j |
|
3 |
|
ltrnset.m |
|
4 |
|
ltrnset.a |
|
5 |
|
ltrnset.h |
|
6 |
|
ltrnset.d |
|
7 |
|
ltrnset.t |
|
8 |
1 2 3 4 5 6 7
|
isltrn |
|
9 |
|
3simpa |
|
10 |
9
|
imim1i |
|
11 |
|
3anass |
|
12 |
|
3anrot |
|
13 |
|
df-ne |
|
14 |
13
|
anbi1i |
|
15 |
11 12 14
|
3bitr3i |
|
16 |
15
|
imbi1i |
|
17 |
|
impexp |
|
18 |
16 17
|
bitri |
|
19 |
|
id |
|
20 |
|
fveq2 |
|
21 |
19 20
|
oveq12d |
|
22 |
21
|
oveq1d |
|
23 |
22
|
a1d |
|
24 |
|
pm2.61 |
|
25 |
23 24
|
ax-mp |
|
26 |
18 25
|
sylbi |
|
27 |
10 26
|
impbii |
|
28 |
27
|
2ralbii |
|
29 |
28
|
anbi2i |
|
30 |
8 29
|
syl6bb |
|