Step |
Hyp |
Ref |
Expression |
1 |
|
latlej.b |
|
2 |
|
latlej.l |
|
3 |
|
latlej.j |
|
4 |
|
simp1 |
|
5 |
|
simp2l |
|
6 |
|
simp2r |
|
7 |
|
simp3l |
|
8 |
1 2 3
|
latjlej1 |
|
9 |
4 5 6 7 8
|
syl13anc |
|
10 |
|
simp3r |
|
11 |
1 2 3
|
latjlej2 |
|
12 |
4 7 10 6 11
|
syl13anc |
|
13 |
1 3
|
latjcl |
|
14 |
4 5 7 13
|
syl3anc |
|
15 |
1 3
|
latjcl |
|
16 |
4 6 7 15
|
syl3anc |
|
17 |
1 3
|
latjcl |
|
18 |
4 6 10 17
|
syl3anc |
|
19 |
1 2
|
lattr |
|
20 |
4 14 16 18 19
|
syl13anc |
|
21 |
9 12 20
|
syl2and |
|