Step |
Hyp |
Ref |
Expression |
1 |
|
simpr |
|
2 |
1
|
a1i |
|
3 |
|
eluni |
|
4 |
2 3
|
syl6ib |
|
5 |
|
simpl |
|
6 |
5
|
a1i |
|
7 |
|
simpl |
|
8 |
7
|
2a1i |
|
9 |
|
simpr |
|
10 |
9
|
2a1i |
|
11 |
|
rspsbc |
|
12 |
11
|
com12 |
|
13 |
10 12
|
syl6d |
|
14 |
|
trsbc |
|
15 |
14
|
biimpd |
|
16 |
10 13 15
|
ee33 |
|
17 |
|
trel |
|
18 |
17
|
expdcom |
|
19 |
6 8 16 18
|
ee233 |
|
20 |
|
elunii |
|
21 |
20
|
ex |
|
22 |
19 10 21
|
ee33 |
|
23 |
22
|
alrimdv |
|
24 |
|
19.23v |
|
25 |
23 24
|
syl6ib |
|
26 |
4 25
|
mpdd |
|
27 |
26
|
alrimivv |
|
28 |
|
dftr2 |
|
29 |
27 28
|
sylibr |
|