Step |
Hyp |
Ref |
Expression |
1 |
|
dvasin.d |
|
2 |
|
un12 |
|
3 |
|
neg1rr |
|
4 |
3
|
rexri |
|
5 |
|
1xr |
|
6 |
|
pnfxr |
|
7 |
4 5 6
|
3pm3.2i |
|
8 |
|
neg1lt0 |
|
9 |
|
0lt1 |
|
10 |
|
0re |
|
11 |
|
1re |
|
12 |
3 10 11
|
lttri |
|
13 |
8 9 12
|
mp2an |
|
14 |
|
ltpnf |
|
15 |
11 14
|
ax-mp |
|
16 |
13 15
|
pm3.2i |
|
17 |
|
df-ioo |
|
18 |
|
df-ico |
|
19 |
|
xrlenlt |
|
20 |
|
xrlttr |
|
21 |
|
xrltletr |
|
22 |
17 18 19 17 20 21
|
ixxun |
|
23 |
7 16 22
|
mp2an |
|
24 |
23
|
uneq2i |
|
25 |
|
mnfxr |
|
26 |
25 4 6
|
3pm3.2i |
|
27 |
|
mnflt |
|
28 |
|
ltpnf |
|
29 |
27 28
|
jca |
|
30 |
3 29
|
ax-mp |
|
31 |
|
df-ioc |
|
32 |
|
xrltnle |
|
33 |
|
xrlelttr |
|
34 |
|
xrlttr |
|
35 |
31 17 32 17 33 34
|
ixxun |
|
36 |
26 30 35
|
mp2an |
|
37 |
24 36
|
eqtri |
|
38 |
|
ioomax |
|
39 |
2 37 38
|
3eqtri |
|
40 |
39
|
difeq1i |
|
41 |
|
difun2 |
|
42 |
|
ax-resscn |
|
43 |
|
difin2 |
|
44 |
42 43
|
ax-mp |
|
45 |
40 41 44
|
3eqtr3ri |
|
46 |
1
|
ineq1i |
|
47 |
|
incom |
|
48 |
31 17 32
|
ixxdisj |
|
49 |
25 4 5 48
|
mp3an |
|
50 |
47 49
|
eqtri |
|
51 |
17 18 19
|
ixxdisj |
|
52 |
4 5 6 51
|
mp3an |
|
53 |
50 52
|
pm3.2i |
|
54 |
|
un00 |
|
55 |
|
indi |
|
56 |
55
|
eqeq1i |
|
57 |
|
disj3 |
|
58 |
54 56 57
|
3bitr2i |
|
59 |
53 58
|
mpbi |
|
60 |
45 46 59
|
3eqtr4i |
|