Step |
Hyp |
Ref |
Expression |
0 |
|
cstrkge |
|
1 |
|
vf |
|
2 |
|
cbs |
|
3 |
1
|
cv |
|
4 |
3 2
|
cfv |
|
5 |
|
vp |
|
6 |
|
citv |
|
7 |
3 6
|
cfv |
|
8 |
|
vi |
|
9 |
|
vx |
|
10 |
5
|
cv |
|
11 |
|
vy |
|
12 |
|
vz |
|
13 |
|
vu |
|
14 |
|
vv |
|
15 |
13
|
cv |
|
16 |
9
|
cv |
|
17 |
8
|
cv |
|
18 |
14
|
cv |
|
19 |
16 18 17
|
co |
|
20 |
15 19
|
wcel |
|
21 |
11
|
cv |
|
22 |
12
|
cv |
|
23 |
21 22 17
|
co |
|
24 |
15 23
|
wcel |
|
25 |
16 15
|
wne |
|
26 |
20 24 25
|
w3a |
|
27 |
|
va |
|
28 |
|
vb |
|
29 |
27
|
cv |
|
30 |
16 29 17
|
co |
|
31 |
21 30
|
wcel |
|
32 |
28
|
cv |
|
33 |
16 32 17
|
co |
|
34 |
22 33
|
wcel |
|
35 |
29 32 17
|
co |
|
36 |
18 35
|
wcel |
|
37 |
31 34 36
|
w3a |
|
38 |
37 28 10
|
wrex |
|
39 |
38 27 10
|
wrex |
|
40 |
26 39
|
wi |
|
41 |
40 14 10
|
wral |
|
42 |
41 13 10
|
wral |
|
43 |
42 12 10
|
wral |
|
44 |
43 11 10
|
wral |
|
45 |
44 9 10
|
wral |
|
46 |
45 8 7
|
wsbc |
|
47 |
46 5 4
|
wsbc |
|
48 |
47 1
|
cab |
|
49 |
0 48
|
wceq |
|