Step |
Hyp |
Ref |
Expression |
1 |
|
rmoanim.1 |
|
2 |
|
simpl |
|
3 |
2
|
a1i |
|
4 |
1 3
|
rexlimi |
|
5 |
4
|
adantr |
|
6 |
|
simpr |
|
7 |
6
|
reximi |
|
8 |
7
|
adantr |
|
9 |
|
nfre1 |
|
10 |
4
|
adantr |
|
11 |
10
|
a1d |
|
12 |
11
|
ancrd |
|
13 |
6 12
|
impbid2 |
|
14 |
9 13
|
rmobida |
|
15 |
14
|
biimpa |
|
16 |
5 8 15
|
jca32 |
|
17 |
|
reu5 |
|
18 |
|
reu5 |
|
19 |
18
|
anbi2i |
|
20 |
16 17 19
|
3imtr4i |
|
21 |
|
ibar |
|
22 |
21
|
adantr |
|
23 |
1 22
|
reubida |
|
24 |
23
|
biimpa |
|
25 |
20 24
|
impbii |
|