Step |
Hyp |
Ref |
Expression |
1 |
|
msubffval.v |
|
2 |
|
msubffval.r |
|
3 |
|
msubffval.s |
|
4 |
|
msubffval.e |
|
5 |
|
msubffval.o |
|
6 |
1 2 3 4 5
|
msubffval |
|
7 |
6
|
adantr |
|
8 |
|
simplr |
|
9 |
8
|
fveq2d |
|
10 |
9
|
fveq1d |
|
11 |
10
|
opeq2d |
|
12 |
11
|
mpteq2dva |
|
13 |
2
|
fvexi |
|
14 |
1
|
fvexi |
|
15 |
13 14
|
pm3.2i |
|
16 |
15
|
a1i |
|
17 |
|
elpm2r |
|
18 |
16 17
|
sylan |
|
19 |
4
|
fvexi |
|
20 |
19
|
mptex |
|
21 |
20
|
a1i |
|
22 |
7 12 18 21
|
fvmptd |
|
23 |
22
|
ex |
|
24 |
|
0fv |
|
25 |
|
mpt0 |
|
26 |
24 25
|
eqtr4i |
|
27 |
|
fvprc |
|
28 |
3 27
|
syl5eq |
|
29 |
28
|
fveq1d |
|
30 |
|
fvprc |
|
31 |
4 30
|
syl5eq |
|
32 |
31
|
mpteq1d |
|
33 |
26 29 32
|
3eqtr4a |
|
34 |
33
|
a1d |
|
35 |
23 34
|
pm2.61i |
|