Step |
Hyp |
Ref |
Expression |
1 |
|
pjop.1 |
|
2 |
|
pjop.2 |
|
3 |
1 2
|
pjopi |
|
4 |
1
|
chshii |
|
5 |
1 2
|
pjclii |
|
6 |
|
shsubcl |
|
7 |
4 5 6
|
mp3an13 |
|
8 |
3 7
|
eqeltrid |
|
9 |
1
|
choccli |
|
10 |
9 2
|
pjclii |
|
11 |
8 10
|
jctir |
|
12 |
|
elin |
|
13 |
11 12
|
sylibr |
|
14 |
|
ocin |
|
15 |
4 14
|
ax-mp |
|
16 |
13 15
|
eleqtrdi |
|
17 |
|
elch0 |
|
18 |
16 17
|
sylib |
|
19 |
1 2
|
pjpji |
|
20 |
|
oveq2 |
|
21 |
19 20
|
syl5eq |
|
22 |
1 2
|
pjhclii |
|
23 |
|
ax-hvaddid |
|
24 |
22 23
|
ax-mp |
|
25 |
21 24
|
eqtrdi |
|
26 |
25 5
|
eqeltrdi |
|
27 |
18 26
|
impbii |
|