| Step |
Hyp |
Ref |
Expression |
| 1 |
|
latjass.b |
|
| 2 |
|
latjass.j |
|
| 3 |
|
simpl |
|
| 4 |
|
simpr2 |
|
| 5 |
|
simpr3 |
|
| 6 |
|
simpr1 |
|
| 7 |
1 2
|
latj32 |
|
| 8 |
3 4 5 6 7
|
syl13anc |
|
| 9 |
1 2
|
latjcl |
|
| 10 |
9
|
3adant3r1 |
|
| 11 |
1 2
|
latjcom |
|
| 12 |
3 6 10 11
|
syl3anc |
|
| 13 |
1 2
|
latjcl |
|
| 14 |
3 4 6 13
|
syl3anc |
|
| 15 |
1 2
|
latjcom |
|
| 16 |
3 5 14 15
|
syl3anc |
|
| 17 |
8 12 16
|
3eqtr4d |
|