Step |
Hyp |
Ref |
Expression |
1 |
|
rrx2line.i |
|
2 |
|
rrx2line.e |
|
3 |
|
rrx2line.b |
|
4 |
|
rrx2line.l |
|
5 |
|
prfi |
|
6 |
1 5
|
eqeltri |
|
7 |
2 3 4
|
rrxlinec |
|
8 |
6 7
|
mpan |
|
9 |
1
|
a1i |
|
10 |
9
|
raleqdv |
|
11 |
|
1ex |
|
12 |
|
2ex |
|
13 |
|
fveq2 |
|
14 |
|
fveq2 |
|
15 |
14
|
oveq2d |
|
16 |
|
fveq2 |
|
17 |
16
|
oveq2d |
|
18 |
15 17
|
oveq12d |
|
19 |
13 18
|
eqeq12d |
|
20 |
|
fveq2 |
|
21 |
|
fveq2 |
|
22 |
21
|
oveq2d |
|
23 |
|
fveq2 |
|
24 |
23
|
oveq2d |
|
25 |
22 24
|
oveq12d |
|
26 |
20 25
|
eqeq12d |
|
27 |
11 12 19 26
|
ralpr |
|
28 |
10 27
|
syl6bb |
|
29 |
28
|
rexbidva |
|
30 |
29
|
rabbidva |
|
31 |
8 30
|
eqtrd |
|