Step |
Hyp |
Ref |
Expression |
1 |
|
affineequiv.a |
|
2 |
|
affineequiv.b |
|
3 |
|
affineequiv.c |
|
4 |
|
affineequiv.d |
|
5 |
1 2 3 4
|
affineequiv |
|
6 |
3 1
|
subcld |
|
7 |
3 2
|
subcld |
|
8 |
4 6
|
mulcld |
|
9 |
6 7 8
|
subcanad |
|
10 |
3 1 2
|
nnncan1d |
|
11 |
|
1cnd |
|
12 |
11 4 6
|
subdird |
|
13 |
6
|
mulid2d |
|
14 |
13
|
oveq1d |
|
15 |
12 14
|
eqtr2d |
|
16 |
10 15
|
eqeq12d |
|
17 |
5 9 16
|
3bitr2d |
|