Step |
Hyp |
Ref |
Expression |
1 |
|
dvbdfbdioo.a |
|
2 |
|
dvbdfbdioo.b |
|
3 |
|
dvbdfbdioo.altb |
|
4 |
|
dvbdfbdioo.f |
|
5 |
|
dvbdfbdioo.dmdv |
|
6 |
|
dvbdfbdioo.dvbd |
|
7 |
1
|
rexrd |
|
8 |
2
|
rexrd |
|
9 |
1 2
|
readdcld |
|
10 |
9
|
rehalfcld |
|
11 |
|
avglt1 |
|
12 |
1 2 11
|
syl2anc |
|
13 |
3 12
|
mpbid |
|
14 |
|
avglt2 |
|
15 |
1 2 14
|
syl2anc |
|
16 |
3 15
|
mpbid |
|
17 |
7 8 10 13 16
|
eliood |
|
18 |
4 17
|
ffvelrnd |
|
19 |
18
|
recnd |
|
20 |
19
|
abscld |
|
21 |
20
|
ad2antrr |
|
22 |
|
simplr |
|
23 |
2
|
ad2antrr |
|
24 |
1
|
ad2antrr |
|
25 |
23 24
|
resubcld |
|
26 |
22 25
|
remulcld |
|
27 |
21 26
|
readdcld |
|
28 |
3
|
ad2antrr |
|
29 |
4
|
ad2antrr |
|
30 |
5
|
ad2antrr |
|
31 |
|
2fveq3 |
|
32 |
31
|
breq1d |
|
33 |
32
|
cbvralvw |
|
34 |
33
|
biimpi |
|
35 |
34
|
adantl |
|
36 |
|
eqid |
|
37 |
24 23 28 29 30 22 35 36
|
dvbdfbdioolem2 |
|
38 |
|
2fveq3 |
|
39 |
38
|
breq1d |
|
40 |
39
|
cbvralvw |
|
41 |
|
breq2 |
|
42 |
41
|
ralbidv |
|
43 |
40 42
|
syl5bb |
|
44 |
43
|
rspcev |
|
45 |
27 37 44
|
syl2anc |
|
46 |
45 6
|
r19.29a |
|