Step |
Hyp |
Ref |
Expression |
1 |
|
crctcsh.v |
|
2 |
|
crctcsh.i |
|
3 |
|
crctcsh.d |
|
4 |
|
crctcsh.n |
|
5 |
|
crctcsh.s |
|
6 |
|
crctcsh.h |
|
7 |
|
crctcsh.q |
|
8 |
|
oveq2 |
|
9 |
|
crctiswlk |
|
10 |
2
|
wlkf |
|
11 |
|
cshw0 |
|
12 |
3 9 10 11
|
4syl |
|
13 |
8 12
|
sylan9eqr |
|
14 |
6 13
|
eqtrid |
|
15 |
|
oveq2 |
|
16 |
1 2 3 4
|
crctcshlem1 |
|
17 |
16
|
nn0cnd |
|
18 |
17
|
subid1d |
|
19 |
15 18
|
sylan9eqr |
|
20 |
19
|
breq2d |
|
21 |
20
|
adantr |
|
22 |
|
oveq2 |
|
23 |
22
|
adantl |
|
24 |
|
elfzelz |
|
25 |
24
|
zcnd |
|
26 |
25
|
addridd |
|
27 |
23 26
|
sylan9eq |
|
28 |
27
|
fveq2d |
|
29 |
27
|
fvoveq1d |
|
30 |
21 28 29
|
ifbieq12d |
|
31 |
30
|
mpteq2dva |
|
32 |
|
elfzle2 |
|
33 |
32
|
adantl |
|
34 |
33
|
iftrued |
|
35 |
34
|
mpteq2dva |
|
36 |
1
|
wlkp |
|
37 |
3 9 36
|
3syl |
|
38 |
|
ffn |
|
39 |
4
|
eqcomi |
|
40 |
39
|
oveq2i |
|
41 |
40
|
fneq2i |
|
42 |
38 41
|
sylib |
|
43 |
42
|
adantl |
|
44 |
|
dffn5 |
|
45 |
43 44
|
sylib |
|
46 |
45
|
eqcomd |
|
47 |
37 46
|
mpdan |
|
48 |
35 47
|
eqtrd |
|
49 |
48
|
adantr |
|
50 |
31 49
|
eqtrd |
|
51 |
7 50
|
eqtrid |
|
52 |
14 51
|
jca |
|