Step |
Hyp |
Ref |
Expression |
1 |
|
nfv |
|
2 |
|
nfv |
|
3 |
|
nfich1 |
|
4 |
1 2 3
|
nf3an |
|
5 |
|
nfv |
|
6 |
|
nfcv |
|
7 |
|
nfsbc1v |
|
8 |
6 7
|
nfsbcw |
|
9 |
5 8
|
nfan |
|
10 |
9
|
nfex |
|
11 |
10
|
nfex |
|
12 |
|
nfv |
|
13 |
|
nfv |
|
14 |
|
nfich2 |
|
15 |
12 13 14
|
nf3an |
|
16 |
|
nfv |
|
17 |
|
nfsbc1v |
|
18 |
16 17
|
nfan |
|
19 |
18
|
nfex |
|
20 |
19
|
nfex |
|
21 |
|
vex |
|
22 |
|
vex |
|
23 |
|
preq12bg |
|
24 |
21 22 23
|
mpanr12 |
|
25 |
24
|
3adant3 |
|
26 |
|
or2expropbilem1 |
|
27 |
26
|
3adant3 |
|
28 |
|
ichcom |
|
29 |
28
|
biimpi |
|
30 |
29
|
3ad2ant3 |
|
31 |
30
|
adantr |
|
32 |
22 21
|
pm3.2i |
|
33 |
32
|
a1i |
|
34 |
31 33
|
anim12i |
|
35 |
|
simpr |
|
36 |
|
opeq12 |
|
37 |
35 36
|
anim12ci |
|
38 |
|
nfv |
|
39 |
|
nfv |
|
40 |
|
opeq12 |
|
41 |
40
|
eqeq2d |
|
42 |
41
|
adantl |
|
43 |
|
dfsbcq |
|
44 |
43
|
adantl |
|
45 |
44
|
adantl |
|
46 |
|
sbceq1a |
|
47 |
46
|
adantr |
|
48 |
|
df-ich |
|
49 |
|
sbsbc |
|
50 |
|
sbsbc |
|
51 |
|
sbsbc |
|
52 |
51
|
sbcbii |
|
53 |
50 52
|
bitri |
|
54 |
53
|
sbcbii |
|
55 |
49 54
|
bitri |
|
56 |
|
2sp |
|
57 |
55 56
|
bitr3id |
|
58 |
48 57
|
sylbi |
|
59 |
47 58
|
sylan9bbr |
|
60 |
45 59
|
bitrd |
|
61 |
42 60
|
anbi12d |
|
62 |
38 39 61
|
spc2ed |
|
63 |
34 37 62
|
sylc |
|
64 |
63
|
exp31 |
|
65 |
64
|
com23 |
|
66 |
27 65
|
jaod |
|
67 |
25 66
|
sylbid |
|
68 |
67
|
impd |
|
69 |
15 20 68
|
exlimd |
|
70 |
4 11 69
|
exlimd |
|
71 |
|
or2expropbilem2 |
|
72 |
70 71
|
syl6ibr |
|
73 |
|
oppr |
|
74 |
73
|
anim1d |
|
75 |
74
|
2eximdv |
|
76 |
75
|
3adant3 |
|
77 |
72 76
|
impbid |
|