Step |
Hyp |
Ref |
Expression |
1 |
|
inveq.b |
|
2 |
|
inveq.n |
|
3 |
|
inveq.c |
|
4 |
|
inveq.x |
|
5 |
|
inveq.y |
|
6 |
|
eqid |
|
7 |
3
|
adantr |
|
8 |
5
|
adantr |
|
9 |
4
|
adantr |
|
10 |
1 2 3 4 5 6
|
isinv |
|
11 |
|
simpr |
|
12 |
10 11
|
syl6bi |
|
13 |
12
|
com12 |
|
14 |
13
|
adantr |
|
15 |
14
|
impcom |
|
16 |
1 2 3 4 5 6
|
isinv |
|
17 |
|
simpl |
|
18 |
16 17
|
syl6bi |
|
19 |
18
|
adantld |
|
20 |
19
|
imp |
|
21 |
1 6 7 8 9 15 20
|
sectcan |
|
22 |
21
|
ex |
|