Step |
Hyp |
Ref |
Expression |
1 |
|
esummono.f |
|
2 |
|
esummono.c |
|
3 |
|
esummono.b |
|
4 |
|
esummono.a |
|
5 |
|
difexg |
|
6 |
2 5
|
syl |
|
7 |
|
simpr |
|
8 |
7
|
eldifad |
|
9 |
8 3
|
syldan |
|
10 |
9
|
ex |
|
11 |
1 10
|
ralrimi |
|
12 |
|
nfcv |
|
13 |
12
|
esumcl |
|
14 |
6 11 13
|
syl2anc |
|
15 |
|
elxrge0 |
|
16 |
15
|
simprbi |
|
17 |
14 16
|
syl |
|
18 |
|
iccssxr |
|
19 |
2 4
|
ssexd |
|
20 |
4
|
sselda |
|
21 |
20 3
|
syldan |
|
22 |
21
|
ex |
|
23 |
1 22
|
ralrimi |
|
24 |
|
nfcv |
|
25 |
24
|
esumcl |
|
26 |
19 23 25
|
syl2anc |
|
27 |
18 26
|
sseldi |
|
28 |
18 14
|
sseldi |
|
29 |
|
xraddge02 |
|
30 |
27 28 29
|
syl2anc |
|
31 |
17 30
|
mpd |
|
32 |
|
disjdif |
|
33 |
32
|
a1i |
|
34 |
1 24 12 19 6 33 21 9
|
esumsplit |
|
35 |
|
undif |
|
36 |
4 35
|
sylib |
|
37 |
1 36
|
esumeq1d |
|
38 |
34 37
|
eqtr3d |
|
39 |
31 38
|
breqtrd |
|