Step |
Hyp |
Ref |
Expression |
1 |
|
zfpow |
|
2 |
|
19.8a |
|
3 |
|
sp |
|
4 |
2 3
|
imim12i |
|
5 |
4
|
alimi |
|
6 |
5
|
imim1i |
|
7 |
6
|
alimi |
|
8 |
1 7
|
eximii |
|
9 |
|
nfnae |
|
10 |
|
nfnae |
|
11 |
9 10
|
nfan |
|
12 |
|
nfnae |
|
13 |
|
nfnae |
|
14 |
12 13
|
nfan |
|
15 |
|
nfv |
|
16 |
|
nfnae |
|
17 |
|
nfcvd |
|
18 |
|
nfcvf |
|
19 |
17 18
|
nfeld |
|
20 |
16 19
|
nfexd |
|
21 |
20
|
adantr |
|
22 |
|
nfcvd |
|
23 |
|
nfcvf |
|
24 |
22 23
|
nfeld |
|
25 |
13 24
|
nfald |
|
26 |
25
|
adantl |
|
27 |
21 26
|
nfimd |
|
28 |
15 27
|
nfald |
|
29 |
18 17
|
nfeld |
|
30 |
29
|
adantr |
|
31 |
28 30
|
nfimd |
|
32 |
14 31
|
nfald |
|
33 |
|
nfeqf2 |
|
34 |
33
|
naecoms |
|
35 |
34
|
adantr |
|
36 |
14 35
|
nfan1 |
|
37 |
|
nfnae |
|
38 |
|
nfeqf2 |
|
39 |
38
|
naecoms |
|
40 |
37 39
|
nfan1 |
|
41 |
|
elequ1 |
|
42 |
41
|
adantl |
|
43 |
40 42
|
exbid |
|
44 |
43
|
adantll |
|
45 |
12 34
|
nfan1 |
|
46 |
|
elequ1 |
|
47 |
46
|
adantl |
|
48 |
45 47
|
albid |
|
49 |
48
|
adantlr |
|
50 |
44 49
|
imbi12d |
|
51 |
50
|
ex |
|
52 |
11 27 51
|
cbvald |
|
53 |
52
|
adantr |
|
54 |
|
elequ2 |
|
55 |
54
|
adantl |
|
56 |
53 55
|
imbi12d |
|
57 |
36 56
|
albid |
|
58 |
57
|
ex |
|
59 |
11 32 58
|
cbvexd |
|
60 |
8 59
|
mpbii |
|
61 |
60
|
ex |
|