Step |
Hyp |
Ref |
Expression |
1 |
|
setindtrs.a |
|
2 |
|
setindtrs.b |
|
3 |
|
setindtrs.c |
|
4 |
|
setindtr |
|
5 |
|
dfss3 |
|
6 |
|
nfcv |
|
7 |
|
nfsab1 |
|
8 |
6 7
|
nfralw |
|
9 |
|
nfsab1 |
|
10 |
8 9
|
nfim |
|
11 |
|
raleq |
|
12 |
|
eleq1w |
|
13 |
11 12
|
imbi12d |
|
14 |
|
vex |
|
15 |
14 2
|
elab |
|
16 |
15
|
ralbii |
|
17 |
|
abid |
|
18 |
1 16 17
|
3imtr4i |
|
19 |
10 13 18
|
chvarfv |
|
20 |
5 19
|
sylbi |
|
21 |
4 20
|
mpg |
|
22 |
|
elex |
|
23 |
22
|
adantl |
|
24 |
23
|
exlimiv |
|
25 |
3
|
elabg |
|
26 |
24 25
|
syl |
|
27 |
21 26
|
mpbid |
|