| Step |
Hyp |
Ref |
Expression |
| 1 |
|
s7rn.a |
|
| 2 |
|
s7rn.b |
|
| 3 |
|
s7rn.c |
|
| 4 |
|
s7rn.d |
|
| 5 |
|
s7rn.e |
|
| 6 |
|
s7rn.f |
|
| 7 |
|
s7rn.g |
|
| 8 |
|
s4s3 |
|
| 9 |
8
|
a1i |
|
| 10 |
9
|
rneqd |
|
| 11 |
|
s4cli |
|
| 12 |
|
s3cli |
|
| 13 |
11 12
|
pm3.2i |
|
| 14 |
|
ccatrn |
|
| 15 |
13 14
|
mp1i |
|
| 16 |
|
df-s4 |
|
| 17 |
16
|
a1i |
|
| 18 |
17
|
rneqd |
|
| 19 |
|
s3cli |
|
| 20 |
|
s1cli |
|
| 21 |
19 20
|
pm3.2i |
|
| 22 |
|
ccatrn |
|
| 23 |
21 22
|
mp1i |
|
| 24 |
1 2 3
|
s3rn |
|
| 25 |
|
s1rn |
|
| 26 |
4 25
|
syl |
|
| 27 |
24 26
|
uneq12d |
|
| 28 |
18 23 27
|
3eqtrd |
|
| 29 |
5 6 7
|
s3rn |
|
| 30 |
28 29
|
uneq12d |
|
| 31 |
10 15 30
|
3eqtrd |
|