Step |
Hyp |
Ref |
Expression |
0 |
|
crrext |
|
1 |
|
vr |
|
2 |
|
cnrg |
|
3 |
|
cdr |
|
4 |
2 3
|
cin |
|
5 |
|
czlm |
|
6 |
1
|
cv |
|
7 |
6 5
|
cfv |
|
8 |
|
cnlm |
|
9 |
7 8
|
wcel |
|
10 |
|
cchr |
|
11 |
6 10
|
cfv |
|
12 |
|
cc0 |
|
13 |
11 12
|
wceq |
|
14 |
9 13
|
wa |
|
15 |
|
ccusp |
|
16 |
6 15
|
wcel |
|
17 |
|
cuss |
|
18 |
6 17
|
cfv |
|
19 |
|
cmetu |
|
20 |
|
cds |
|
21 |
6 20
|
cfv |
|
22 |
|
cbs |
|
23 |
6 22
|
cfv |
|
24 |
23 23
|
cxp |
|
25 |
21 24
|
cres |
|
26 |
25 19
|
cfv |
|
27 |
18 26
|
wceq |
|
28 |
16 27
|
wa |
|
29 |
14 28
|
wa |
|
30 |
29 1 4
|
crab |
|
31 |
0 30
|
wceq |
|