Step |
Hyp |
Ref |
Expression |
1 |
|
3factsumint3.1 |
|
2 |
|
3factsumint3.2 |
|
3 |
|
3factsumint3.3 |
|
4 |
|
3factsumint3.4 |
|
5 |
|
3factsumint3.5 |
|
6 |
|
3factsumint3.6 |
|
7 |
|
3factsumint3.7 |
|
8 |
|
3factsumint3.8 |
|
9 |
4
|
adantlr |
|
10 |
|
ancom |
|
11 |
10
|
anbi2i |
|
12 |
|
anass |
|
13 |
12
|
bicomi |
|
14 |
11 13
|
bitri |
|
15 |
14
|
imbi1i |
|
16 |
7 15
|
mpbi |
|
17 |
9 16
|
mulcld |
|
18 |
2
|
adantr |
|
19 |
3
|
adantr |
|
20 |
5
|
adantr |
|
21 |
20 8
|
mulcncf |
|
22 |
1
|
oveq1i |
|
23 |
21 22
|
eleqtrdi |
|
24 |
|
cnicciblnc |
|
25 |
18 19 23 24
|
syl3anc |
|
26 |
6 17 25
|
itgmulc2 |
|
27 |
26
|
eqcomd |
|
28 |
27
|
sumeq2dv |
|