Step |
Hyp |
Ref |
Expression |
1 |
|
lcoop.b |
|
2 |
|
lcoop.s |
|
3 |
|
lcoop.r |
|
4 |
|
elex |
|
5 |
4
|
adantr |
|
6 |
1
|
pweqi |
|
7 |
6
|
eleq2i |
|
8 |
7
|
biimpi |
|
9 |
8
|
adantl |
|
10 |
1
|
fvexi |
|
11 |
|
rabexg |
|
12 |
10 11
|
mp1i |
|
13 |
|
fveq2 |
|
14 |
13 1
|
eqtr4di |
|
15 |
14
|
adantr |
|
16 |
|
2fveq3 |
|
17 |
16
|
adantr |
|
18 |
2
|
fveq2i |
|
19 |
3 18
|
eqtri |
|
20 |
17 19
|
eqtr4di |
|
21 |
|
simpr |
|
22 |
20 21
|
oveq12d |
|
23 |
|
2fveq3 |
|
24 |
2
|
a1i |
|
25 |
24
|
eqcomd |
|
26 |
25
|
fveq2d |
|
27 |
23 26
|
eqtrd |
|
28 |
27
|
adantr |
|
29 |
28
|
breq2d |
|
30 |
|
fveq2 |
|
31 |
30
|
adantr |
|
32 |
|
eqidd |
|
33 |
31 32 21
|
oveq123d |
|
34 |
33
|
eqeq2d |
|
35 |
29 34
|
anbi12d |
|
36 |
22 35
|
rexeqbidv |
|
37 |
15 36
|
rabeqbidv |
|
38 |
13
|
pweqd |
|
39 |
|
df-lco |
|
40 |
37 38 39
|
ovmpox |
|
41 |
5 9 12 40
|
syl3anc |
|