Step |
Hyp |
Ref |
Expression |
1 |
|
rusgrnumwwlkl1.v |
|
2 |
|
1nn0 |
|
3 |
|
iswwlksn |
|
4 |
2 3
|
ax-mp |
|
5 |
|
eqid |
|
6 |
1 5
|
iswwlks |
|
7 |
6
|
anbi1i |
|
8 |
4 7
|
bitri |
|
9 |
8
|
a1i |
|
10 |
9
|
anbi1d |
|
11 |
|
1p1e2 |
|
12 |
11
|
eqeq2i |
|
13 |
12
|
a1i |
|
14 |
13
|
anbi2d |
|
15 |
|
3anass |
|
16 |
15
|
a1i |
|
17 |
|
fveq2 |
|
18 |
|
hash0 |
|
19 |
17 18
|
eqtrdi |
|
20 |
|
2ne0 |
|
21 |
20
|
nesymi |
|
22 |
|
eqeq1 |
|
23 |
21 22
|
mtbiri |
|
24 |
19 23
|
syl |
|
25 |
24
|
necon2ai |
|
26 |
25
|
adantl |
|
27 |
26
|
biantrurd |
|
28 |
|
oveq1 |
|
29 |
|
2m1e1 |
|
30 |
28 29
|
eqtrdi |
|
31 |
30
|
oveq2d |
|
32 |
31
|
adantl |
|
33 |
32
|
raleqdv |
|
34 |
|
fzo01 |
|
35 |
34
|
raleqi |
|
36 |
|
c0ex |
|
37 |
|
fveq2 |
|
38 |
|
fv0p1e1 |
|
39 |
37 38
|
preq12d |
|
40 |
39
|
eleq1d |
|
41 |
36 40
|
ralsn |
|
42 |
35 41
|
bitri |
|
43 |
33 42
|
bitrdi |
|
44 |
43
|
anbi2d |
|
45 |
16 27 44
|
3bitr2d |
|
46 |
45
|
ex |
|
47 |
46
|
pm5.32rd |
|
48 |
14 47
|
bitrd |
|
49 |
48
|
anbi1d |
|
50 |
|
anass |
|
51 |
49 50
|
bitrdi |
|
52 |
|
anass |
|
53 |
|
ancom |
|
54 |
|
df-3an |
|
55 |
53 54
|
bitr4i |
|
56 |
55
|
anbi2i |
|
57 |
52 56
|
bitri |
|
58 |
57
|
a1i |
|
59 |
10 51 58
|
3bitrd |
|
60 |
59
|
rabbidva2 |
|
61 |
60
|
fveq2d |
|
62 |
1
|
rusgrnumwrdl2 |
|
63 |
61 62
|
eqtrd |
|