Step |
Hyp |
Ref |
Expression |
1 |
|
uzinico.1 |
|
2 |
|
uzinico.2 |
|
3 |
2
|
eluzelz2 |
|
4 |
3
|
adantl |
|
5 |
1
|
zred |
|
6 |
5
|
rexrd |
|
7 |
6
|
adantr |
|
8 |
|
pnfxr |
|
9 |
8
|
a1i |
|
10 |
|
zssre |
|
11 |
|
ressxr |
|
12 |
10 11
|
sstri |
|
13 |
12 3
|
sselid |
|
14 |
13
|
adantl |
|
15 |
2
|
eleq2i |
|
16 |
15
|
biimpi |
|
17 |
|
eluzle |
|
18 |
16 17
|
syl |
|
19 |
18
|
adantl |
|
20 |
10 3
|
sselid |
|
21 |
20
|
ltpnfd |
|
22 |
21
|
adantl |
|
23 |
7 9 14 19 22
|
elicod |
|
24 |
4 23
|
elind |
|
25 |
24
|
ex |
|
26 |
1
|
adantr |
|
27 |
|
elinel1 |
|
28 |
27
|
adantl |
|
29 |
|
elinel2 |
|
30 |
29
|
adantl |
|
31 |
6
|
adantr |
|
32 |
8
|
a1i |
|
33 |
|
simpr |
|
34 |
31 32 33
|
icogelbd |
|
35 |
30 34
|
syldan |
|
36 |
2 26 28 35
|
eluzd |
|
37 |
36
|
ex |
|
38 |
25 37
|
impbid |
|
39 |
38
|
alrimiv |
|
40 |
|
dfcleq |
|
41 |
39 40
|
sylibr |
|