Step |
Hyp |
Ref |
Expression |
1 |
|
mendsca.a |
|
2 |
|
mendsca.s |
|
3 |
|
fvex |
|
4 |
|
eqid |
|
5 |
4
|
algsca |
|
6 |
3 5
|
mp1i |
|
7 |
|
eqid |
|
8 |
|
eqid |
|
9 |
|
eqid |
|
10 |
|
eqid |
|
11 |
|
eqid |
|
12 |
7 8 9 10 11
|
mendval |
|
13 |
12
|
fveq2d |
|
14 |
6 13
|
eqtr4d |
|
15 |
|
df-sca |
|
16 |
15
|
str0 |
|
17 |
|
fvprc |
|
18 |
|
fvprc |
|
19 |
18
|
fveq2d |
|
20 |
16 17 19
|
3eqtr4a |
|
21 |
14 20
|
pm2.61i |
|
22 |
1
|
fveq2i |
|
23 |
21 2 22
|
3eqtr4i |
|