Step |
Hyp |
Ref |
Expression |
1 |
|
isdmn3.1 |
|
2 |
|
isdmn3.2 |
|
3 |
|
isdmn3.3 |
|
4 |
|
isdmn3.4 |
|
5 |
|
isdmn3.5 |
|
6 |
|
isdmn2 |
|
7 |
1 4
|
isprrngo |
|
8 |
1 2 3
|
ispridlc |
|
9 |
|
crngorngo |
|
10 |
9
|
biantrurd |
|
11 |
|
3anass |
|
12 |
1 4
|
0idl |
|
13 |
9 12
|
syl |
|
14 |
13
|
biantrurd |
|
15 |
1
|
rneqi |
|
16 |
3 15
|
eqtri |
|
17 |
16 2 5
|
rngo1cl |
|
18 |
|
eleq2 |
|
19 |
|
elsni |
|
20 |
18 19
|
syl6bir |
|
21 |
17 20
|
syl5com |
|
22 |
1 2 4 5 3
|
rngoueqz |
|
23 |
1 3 4
|
rngo0cl |
|
24 |
|
en1eqsn |
|
25 |
24
|
eqcomd |
|
26 |
25
|
ex |
|
27 |
23 26
|
syl |
|
28 |
22 27
|
sylbird |
|
29 |
21 28
|
impbid |
|
30 |
9 29
|
syl |
|
31 |
30
|
necon3bid |
|
32 |
|
ovex |
|
33 |
32
|
elsn |
|
34 |
|
velsn |
|
35 |
|
velsn |
|
36 |
34 35
|
orbi12i |
|
37 |
33 36
|
imbi12i |
|
38 |
37
|
a1i |
|
39 |
38
|
2ralbidv |
|
40 |
31 39
|
anbi12d |
|
41 |
14 40
|
bitr3d |
|
42 |
11 41
|
syl5bb |
|
43 |
8 10 42
|
3bitr3d |
|
44 |
7 43
|
syl5bb |
|
45 |
44
|
pm5.32i |
|
46 |
|
ancom |
|
47 |
|
3anass |
|
48 |
45 46 47
|
3bitr4i |
|
49 |
6 48
|
bitri |
|