Step |
Hyp |
Ref |
Expression |
1 |
|
cxpi11d.a |
|
2 |
|
cxpi11d.b |
|
3 |
|
ax-icn |
|
4 |
3
|
a1i |
|
5 |
|
ine0 |
|
6 |
5
|
a1i |
|
7 |
|
ine1 |
|
8 |
7
|
a1i |
|
9 |
4 1 2 6 8
|
cxp112d |
|
10 |
|
2cn |
|
11 |
|
picn |
|
12 |
10 11
|
mulcli |
|
13 |
3 12
|
mulcli |
|
14 |
13
|
a1i |
|
15 |
|
zcn |
|
16 |
|
logcl |
|
17 |
3 5 16
|
mp2an |
|
18 |
17
|
a1i |
|
19 |
|
logccne0 |
|
20 |
3 5 7 19
|
mp3an |
|
21 |
20
|
a1i |
|
22 |
14 15 18 21
|
div23d |
|
23 |
|
logi |
|
24 |
23
|
oveq2i |
|
25 |
12
|
a1i |
|
26 |
|
2ne0 |
|
27 |
11 10 26
|
divcli |
|
28 |
27
|
a1i |
|
29 |
3
|
a1i |
|
30 |
|
pine0 |
|
31 |
11 10 30 26
|
divne0i |
|
32 |
31
|
a1i |
|
33 |
5
|
a1i |
|
34 |
25 28 29 32 33
|
divcan5d |
|
35 |
34
|
mptru |
|
36 |
10 11 27 31
|
divassi |
|
37 |
11
|
a1i |
|
38 |
|
2cnd |
|
39 |
30
|
a1i |
|
40 |
26
|
a1i |
|
41 |
37 38 39 40
|
ddcand |
|
42 |
41
|
mptru |
|
43 |
42
|
oveq2i |
|
44 |
|
2t2e4 |
|
45 |
36 43 44
|
3eqtri |
|
46 |
24 35 45
|
3eqtri |
|
47 |
46
|
oveq1i |
|
48 |
22 47
|
eqtrdi |
|
49 |
48
|
oveq2d |
|
50 |
49
|
eqeq2d |
|
51 |
50
|
rexbiia |
|
52 |
9 51
|
bitrdi |
|