Step |
Hyp |
Ref |
Expression |
0 |
|
citgo |
|
1 |
|
vs |
|
2 |
|
cc |
|
3 |
2
|
cpw |
|
4 |
|
vx |
|
5 |
|
vp |
|
6 |
|
cply |
|
7 |
1
|
cv |
|
8 |
7 6
|
cfv |
|
9 |
5
|
cv |
|
10 |
4
|
cv |
|
11 |
10 9
|
cfv |
|
12 |
|
cc0 |
|
13 |
11 12
|
wceq |
|
14 |
|
ccoe |
|
15 |
9 14
|
cfv |
|
16 |
|
cdgr |
|
17 |
9 16
|
cfv |
|
18 |
17 15
|
cfv |
|
19 |
|
c1 |
|
20 |
18 19
|
wceq |
|
21 |
13 20
|
wa |
|
22 |
21 5 8
|
wrex |
|
23 |
22 4 2
|
crab |
|
24 |
1 3 23
|
cmpt |
|
25 |
0 24
|
wceq |
|