| Step |
Hyp |
Ref |
Expression |
| 1 |
|
simpl1l |
|
| 2 |
|
simpl2l |
|
| 3 |
|
simpl2r |
|
| 4 |
|
simpl1r |
|
| 5 |
|
simpl3 |
|
| 6 |
|
simpr |
|
| 7 |
|
acongtr |
|
| 8 |
1 2 3 4 5 6 7
|
syl222anc |
|
| 9 |
|
simpl1l |
|
| 10 |
|
simpl2r |
|
| 11 |
|
simpl2l |
|
| 12 |
|
simpl1r |
|
| 13 |
|
simpl3 |
|
| 14 |
|
acongsym |
|
| 15 |
9 11 10 13 14
|
syl31anc |
|
| 16 |
|
simpr |
|
| 17 |
|
acongtr |
|
| 18 |
9 10 11 12 15 16 17
|
syl222anc |
|
| 19 |
8 18
|
impbida |
|