| 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 |
|