Step |
Hyp |
Ref |
Expression |
1 |
|
isleag.p |
|
2 |
|
isleag.g |
|
3 |
|
isleag.a |
|
4 |
|
isleag.b |
|
5 |
|
isleag.c |
|
6 |
|
isleag.d |
|
7 |
|
isleag.e |
|
8 |
|
isleag.f |
|
9 |
|
isleagd.s |
|
10 |
|
isleagd.x |
|
11 |
|
isleagd.1 |
|
12 |
|
isleagd.2 |
|
13 |
9
|
eqcomi |
|
14 |
13
|
a1i |
|
15 |
|
simpr |
|
16 |
15
|
breq1d |
|
17 |
|
eqidd |
|
18 |
|
eqidd |
|
19 |
17 18 15
|
s3eqd |
|
20 |
19
|
breq2d |
|
21 |
16 20
|
anbi12d |
|
22 |
11 12
|
jca |
|
23 |
10 21 22
|
rspcedvd |
|
24 |
1 2 3 4 5 6 7 8
|
isleag |
|
25 |
23 24
|
mpbird |
|
26 |
14 25
|
breqdi |
|