Step |
Hyp |
Ref |
Expression |
0 |
|
clo |
|
1 |
|
vt |
|
2 |
|
chba |
|
3 |
|
cmap |
|
4 |
2 2 3
|
co |
|
5 |
|
vx |
|
6 |
|
cc |
|
7 |
|
vy |
|
8 |
|
vz |
|
9 |
1
|
cv |
|
10 |
5
|
cv |
|
11 |
|
csm |
|
12 |
7
|
cv |
|
13 |
10 12 11
|
co |
|
14 |
|
cva |
|
15 |
8
|
cv |
|
16 |
13 15 14
|
co |
|
17 |
16 9
|
cfv |
|
18 |
12 9
|
cfv |
|
19 |
10 18 11
|
co |
|
20 |
15 9
|
cfv |
|
21 |
19 20 14
|
co |
|
22 |
17 21
|
wceq |
|
23 |
22 8 2
|
wral |
|
24 |
23 7 2
|
wral |
|
25 |
24 5 6
|
wral |
|
26 |
25 1 4
|
crab |
|
27 |
0 26
|
wceq |
|