Step |
Hyp |
Ref |
Expression |
1 |
|
hgt749d.o |
|
2 |
|
hgt749d.n |
|
3 |
|
hgt749d.1 |
|
4 |
|
breq2 |
|
5 |
|
oveq1 |
|
6 |
5
|
oveq2d |
|
7 |
|
oveq2 |
|
8 |
7
|
fveq1d |
|
9 |
|
oveq2 |
|
10 |
9
|
fveq1d |
|
11 |
10
|
oveq1d |
|
12 |
8 11
|
oveq12d |
|
13 |
|
negeq |
|
14 |
13
|
oveq1d |
|
15 |
14
|
oveq2d |
|
16 |
15
|
fveq2d |
|
17 |
12 16
|
oveq12d |
|
18 |
17
|
adantr |
|
19 |
18
|
itgeq2dv |
|
20 |
6 19
|
breq12d |
|
21 |
20
|
3anbi3d |
|
22 |
21
|
rexbidv |
|
23 |
22
|
rexbidv |
|
24 |
4 23
|
imbi12d |
|
25 |
|
ax-hgt749 |
|
26 |
25
|
a1i |
|
27 |
2 1
|
eleqtrdi |
|
28 |
24 26 27
|
rspcdva |
|
29 |
3 28
|
mpd |
|