Step |
Hyp |
Ref |
Expression |
1 |
|
leordtval.1 |
|
2 |
|
iocssxr |
|
3 |
|
sseqin2 |
|
4 |
2 3
|
mpbi |
|
5 |
|
simpl |
|
6 |
|
pnfxr |
|
7 |
|
elioc1 |
|
8 |
5 6 7
|
sylancl |
|
9 |
|
simpr |
|
10 |
|
pnfge |
|
11 |
9 10
|
jccir |
|
12 |
11
|
biantrurd |
|
13 |
|
3anan32 |
|
14 |
12 13
|
bitr4di |
|
15 |
|
xrltnle |
|
16 |
8 14 15
|
3bitr2d |
|
17 |
16
|
rabbi2dva |
|
18 |
4 17
|
syl5eqr |
|
19 |
18
|
mpteq2ia |
|
20 |
19
|
rneqi |
|
21 |
1 20
|
eqtri |
|