Step |
Hyp |
Ref |
Expression |
1 |
|
leordtval.1 |
|
2 |
|
leordtval.2 |
|
3 |
|
icossxr |
|
4 |
|
sseqin2 |
|
5 |
3 4
|
mpbi |
|
6 |
|
mnfxr |
|
7 |
|
simpl |
|
8 |
|
elico1 |
|
9 |
6 7 8
|
sylancr |
|
10 |
|
simpr |
|
11 |
|
mnfle |
|
12 |
10 11
|
jccir |
|
13 |
12
|
biantrurd |
|
14 |
|
df-3an |
|
15 |
13 14
|
bitr4di |
|
16 |
|
xrltnle |
|
17 |
16
|
ancoms |
|
18 |
9 15 17
|
3bitr2d |
|
19 |
18
|
rabbi2dva |
|
20 |
5 19
|
syl5eqr |
|
21 |
20
|
mpteq2ia |
|
22 |
21
|
rneqi |
|
23 |
2 22
|
eqtri |
|