Step |
Hyp |
Ref |
Expression |
1 |
|
nfe1 |
|
2 |
|
nfv |
|
3 |
1 2
|
nfim |
|
4 |
3
|
nfex |
|
5 |
|
axreplem |
|
6 |
|
axrep1 |
|
7 |
4 5 6
|
chvarfv |
|
8 |
|
sp |
|
9 |
8
|
imim1i |
|
10 |
9
|
alimi |
|
11 |
10
|
eximi |
|
12 |
|
nfv |
|
13 |
|
nfa1 |
|
14 |
|
nfv |
|
15 |
13 14
|
nfim |
|
16 |
15
|
nfal |
|
17 |
|
equequ2 |
|
18 |
17
|
imbi2d |
|
19 |
18
|
albidv |
|
20 |
12 16 19
|
cbvexv1 |
|
21 |
11 20
|
sylib |
|
22 |
21
|
imim1i |
|
23 |
7 22
|
eximii |
|