| Step |
Hyp |
Ref |
Expression |
| 1 |
|
linecgrand.1 |
|
| 2 |
|
linecgrand.2 |
|
| 3 |
|
linecgrand.3 |
|
| 4 |
|
linecgrand.4 |
|
| 5 |
|
linecgrand.5 |
|
| 6 |
|
linecgrand.6 |
|
| 7 |
|
linecgrand.7 |
|
| 8 |
|
linecgrand.8 |
|
| 9 |
|
linecgrand.9 |
|
| 10 |
|
linecgrand.10 |
|
| 11 |
7 8
|
jca |
|
| 12 |
9 10
|
jca |
|
| 13 |
|
linecgr |
|
| 14 |
1 2 3 4 5 6 13
|
syl132anc |
|
| 15 |
14
|
adantr |
|
| 16 |
11 12 15
|
mp2and |
|