Step |
Hyp |
Ref |
Expression |
1 |
|
frmdup3.m |
|
2 |
|
frmdup3.b |
|
3 |
|
frmdup3.u |
|
4 |
|
eqid |
|
5 |
4 2
|
mhmf |
|
6 |
5
|
ad2antrl |
|
7 |
1 4
|
frmdbas |
|
8 |
7
|
3ad2ant2 |
|
9 |
8
|
adantr |
|
10 |
9
|
feq2d |
|
11 |
6 10
|
mpbid |
|
12 |
11
|
feqmptd |
|
13 |
|
simplrl |
|
14 |
|
simpr |
|
15 |
3
|
vrmdf |
|
16 |
15
|
3ad2ant2 |
|
17 |
8
|
feq3d |
|
18 |
16 17
|
mpbird |
|
19 |
18
|
ad2antrr |
|
20 |
|
wrdco |
|
21 |
14 19 20
|
syl2anc |
|
22 |
4
|
gsumwmhm |
|
23 |
13 21 22
|
syl2anc |
|
24 |
|
simpll2 |
|
25 |
1 3
|
frmdgsum |
|
26 |
24 14 25
|
syl2anc |
|
27 |
26
|
fveq2d |
|
28 |
|
coass |
|
29 |
|
simplrr |
|
30 |
29
|
coeq1d |
|
31 |
28 30
|
syl5eqr |
|
32 |
31
|
oveq2d |
|
33 |
23 27 32
|
3eqtr3d |
|
34 |
33
|
mpteq2dva |
|
35 |
12 34
|
eqtrd |
|