| Step |
Hyp |
Ref |
Expression |
| 1 |
|
latjass.b |
|
| 2 |
|
latjass.j |
|
| 3 |
|
simp1 |
|
| 4 |
|
simp2r |
|
| 5 |
|
simp3l |
|
| 6 |
|
simp3r |
|
| 7 |
1 2
|
latj12 |
|
| 8 |
3 4 5 6 7
|
syl13anc |
|
| 9 |
8
|
oveq2d |
|
| 10 |
|
simp2l |
|
| 11 |
1 2
|
latjcl |
|
| 12 |
3 5 6 11
|
syl3anc |
|
| 13 |
1 2
|
latjass |
|
| 14 |
3 10 4 12 13
|
syl13anc |
|
| 15 |
1 2
|
latjcl |
|
| 16 |
3 4 6 15
|
syl3anc |
|
| 17 |
1 2
|
latjass |
|
| 18 |
3 10 5 16 17
|
syl13anc |
|
| 19 |
9 14 18
|
3eqtr4d |
|