Step |
Hyp |
Ref |
Expression |
1 |
|
esumadd.0 |
|
2 |
|
esumadd.1 |
|
3 |
|
esumadd.2 |
|
4 |
|
nfv |
|
5 |
|
nfcv |
|
6 |
|
ge0xaddcl |
|
7 |
2 3 6
|
syl2anc |
|
8 |
|
xrge0base |
|
9 |
|
xrge0plusg |
|
10 |
|
xrge0cmn |
|
11 |
10
|
a1i |
|
12 |
|
xrge0tmd |
|
13 |
12
|
a1i |
|
14 |
2
|
fmpttd |
|
15 |
3
|
fmpttd |
|
16 |
4 5 1 2
|
esumel |
|
17 |
4 5 1 3
|
esumel |
|
18 |
8 9 11 13 1 14 15 16 17
|
tsmsadd |
|
19 |
|
eqidd |
|
20 |
|
eqidd |
|
21 |
1 2 3 19 20
|
offval2 |
|
22 |
21
|
oveq2d |
|
23 |
18 22
|
eleqtrd |
|
24 |
4 5 1 7 23
|
esumid |
|