Step |
Hyp |
Ref |
Expression |
1 |
|
seqof2.1 |
|
2 |
|
seqof2.2 |
|
3 |
|
seqof2.3 |
|
4 |
|
seqof2.4 |
|
5 |
|
nfv |
|
6 |
|
nffvmpt1 |
|
7 |
|
nfcv |
|
8 |
|
nffvmpt1 |
|
9 |
7 8
|
nfmpt |
|
10 |
6 9
|
nfeq |
|
11 |
5 10
|
nfim |
|
12 |
|
eleq1w |
|
13 |
12
|
anbi2d |
|
14 |
|
fveq2 |
|
15 |
|
fveq2 |
|
16 |
15
|
mpteq2dv |
|
17 |
14 16
|
eqeq12d |
|
18 |
13 17
|
imbi12d |
|
19 |
3
|
sselda |
|
20 |
1
|
adantr |
|
21 |
20
|
mptexd |
|
22 |
|
eqid |
|
23 |
22
|
fvmpt2 |
|
24 |
19 21 23
|
syl2anc |
|
25 |
19
|
adantr |
|
26 |
|
simpll |
|
27 |
|
simpr |
|
28 |
26 25 27 4
|
syl12anc |
|
29 |
|
eqid |
|
30 |
29
|
fvmpt2 |
|
31 |
25 28 30
|
syl2anc |
|
32 |
31
|
mpteq2dva |
|
33 |
24 32
|
eqtr4d |
|
34 |
11 18 33
|
chvarfv |
|
35 |
|
nfcv |
|
36 |
|
nfcsb1v |
|
37 |
|
nfcv |
|
38 |
36 37
|
nffv |
|
39 |
|
csbeq1a |
|
40 |
39
|
fveq1d |
|
41 |
35 38 40
|
cbvmpt |
|
42 |
34 41
|
eqtrdi |
|
43 |
1 2 42
|
seqof |
|
44 |
|
nfcv |
|
45 |
|
nfcv |
|
46 |
|
nfcv |
|
47 |
45 46 36
|
nfseq |
|
48 |
|
nfcv |
|
49 |
47 48
|
nffv |
|
50 |
39
|
seqeq3d |
|
51 |
50
|
fveq1d |
|
52 |
44 49 51
|
cbvmpt |
|
53 |
43 52
|
eqtr4di |
|