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 |
|