Step |
Hyp |
Ref |
Expression |
1 |
|
elreal |
|
2 |
|
elreal |
|
3 |
|
elreal |
|
4 |
|
breq1 |
|
5 |
|
oveq2 |
|
6 |
5
|
breq1d |
|
7 |
4 6
|
bibi12d |
|
8 |
|
breq2 |
|
9 |
|
oveq2 |
|
10 |
9
|
breq2d |
|
11 |
8 10
|
bibi12d |
|
12 |
|
oveq1 |
|
13 |
|
oveq1 |
|
14 |
12 13
|
breq12d |
|
15 |
14
|
bibi2d |
|
16 |
|
ltasr |
|
17 |
16
|
adantr |
|
18 |
|
ltresr |
|
19 |
18
|
a1i |
|
20 |
|
addresr |
|
21 |
|
addresr |
|
22 |
20 21
|
breqan12d |
|
23 |
22
|
anandis |
|
24 |
|
ltresr |
|
25 |
23 24
|
bitrdi |
|
26 |
17 19 25
|
3bitr4d |
|
27 |
26
|
ancoms |
|
28 |
27
|
3impa |
|
29 |
1 2 3 7 11 15 28
|
3gencl |
|
30 |
29
|
biimpd |
|