Step |
Hyp |
Ref |
Expression |
1 |
|
ioossioobi.a |
|
2 |
|
ioossioobi.b |
|
3 |
|
ioossioobi.c |
|
4 |
|
ioossioobi.d |
|
5 |
|
ioossioobi.cltd |
|
6 |
|
simpr |
|
7 |
|
df-ioo |
|
8 |
7
|
ixxssxr |
|
9 |
|
infxrss |
|
10 |
6 8 9
|
sylancl |
|
11 |
1
|
adantr |
|
12 |
2
|
adantr |
|
13 |
|
ioon0 |
|
14 |
3 4 13
|
syl2anc |
|
15 |
5 14
|
mpbird |
|
16 |
15
|
adantr |
|
17 |
|
ssn0 |
|
18 |
6 16 17
|
syl2anc |
|
19 |
|
idd |
|
20 |
|
xrltle |
|
21 |
|
idd |
|
22 |
|
xrltle |
|
23 |
7 19 20 21 22
|
ixxlb |
|
24 |
11 12 18 23
|
syl3anc |
|
25 |
3
|
adantr |
|
26 |
4
|
adantr |
|
27 |
|
idd |
|
28 |
|
xrltle |
|
29 |
|
idd |
|
30 |
|
xrltle |
|
31 |
7 27 28 29 30
|
ixxlb |
|
32 |
25 26 16 31
|
syl3anc |
|
33 |
10 24 32
|
3brtr3d |
|
34 |
|
supxrss |
|
35 |
6 8 34
|
sylancl |
|
36 |
7 27 28 29 30
|
ixxub |
|
37 |
25 26 16 36
|
syl3anc |
|
38 |
7 19 20 21 22
|
ixxub |
|
39 |
11 12 18 38
|
syl3anc |
|
40 |
35 37 39
|
3brtr3d |
|
41 |
33 40
|
jca |
|
42 |
1
|
adantr |
|
43 |
2
|
adantr |
|
44 |
|
simprl |
|
45 |
|
simprr |
|
46 |
|
ioossioo |
|
47 |
42 43 44 45 46
|
syl22anc |
|
48 |
41 47
|
impbida |
|