Step |
Hyp |
Ref |
Expression |
1 |
|
grpfo.1 |
|
2 |
|
grpidinvlem3.2 |
|
3 |
|
grpidinvlem3.3 |
|
4 |
|
oveq1 |
|
5 |
4
|
eqeq1d |
|
6 |
5
|
cbvrexvw |
|
7 |
6
|
ralbii |
|
8 |
3 7
|
bitri |
|
9 |
|
oveq2 |
|
10 |
9
|
eqeq1d |
|
11 |
10
|
rexbidv |
|
12 |
11
|
rspccva |
|
13 |
8 12
|
sylanb |
|
14 |
13
|
adantll |
|
15 |
14
|
adantll |
|
16 |
1
|
grpocl |
|
17 |
16
|
3expa |
|
18 |
17
|
adantllr |
|
19 |
18
|
adantllr |
|
20 |
2
|
biimpi |
|
21 |
20
|
ad2antrl |
|
22 |
21
|
ad2antrr |
|
23 |
|
oveq2 |
|
24 |
|
id |
|
25 |
23 24
|
eqeq12d |
|
26 |
25
|
rspcva |
|
27 |
19 22 26
|
syl2anc |
|
28 |
27
|
adantr |
|
29 |
|
pm3.22 |
|
30 |
29
|
an31s |
|
31 |
30
|
adantllr |
|
32 |
31
|
adantllr |
|
33 |
32
|
adantr |
|
34 |
|
oveq2 |
|
35 |
|
id |
|
36 |
34 35
|
eqeq12d |
|
37 |
36
|
rspccva |
|
38 |
2 37
|
sylanb |
|
39 |
38
|
adantlr |
|
40 |
39
|
adantlr |
|
41 |
40
|
adantlll |
|
42 |
41
|
anim1i |
|
43 |
1
|
grpoidinvlem2 |
|
44 |
33 42 43
|
syl2anc |
|
45 |
16
|
3expb |
|
46 |
45
|
ad2ant2rl |
|
47 |
|
oveq1 |
|
48 |
47
|
eqeq1d |
|
49 |
48
|
cbvrexvw |
|
50 |
49
|
ralbii |
|
51 |
3 50
|
bitri |
|
52 |
|
oveq2 |
|
53 |
52
|
eqeq1d |
|
54 |
53
|
rexbidv |
|
55 |
54
|
rspcva |
|
56 |
51 55
|
sylan2b |
|
57 |
|
anass |
|
58 |
57
|
biimpi |
|
59 |
58
|
an32s |
|
60 |
59
|
ex |
|
61 |
45 60
|
syldan |
|
62 |
61
|
ad2ant2rl |
|
63 |
62
|
imp |
|
64 |
1
|
grpoidinvlem1 |
|
65 |
63 64
|
sylan |
|
66 |
65
|
exp43 |
|
67 |
66
|
rexlimdv |
|
68 |
56 67
|
syl5 |
|
69 |
46 68
|
mpand |
|
70 |
69
|
exp32 |
|
71 |
70
|
com34 |
|
72 |
71
|
imp32 |
|
73 |
72
|
impl |
|
74 |
73
|
adantr |
|
75 |
44 74
|
mpd |
|
76 |
28 75
|
eqtr3d |
|
77 |
76
|
ex |
|
78 |
77
|
ancld |
|
79 |
78
|
reximdva |
|
80 |
15 79
|
mpd |
|