Step |
Hyp |
Ref |
Expression |
1 |
|
isleag.p |
|
2 |
|
isleag.g |
|
3 |
|
isleag.a |
|
4 |
|
isleag.b |
|
5 |
|
isleag.c |
|
6 |
|
isleag.d |
|
7 |
|
isleag.e |
|
8 |
|
isleag.f |
|
9 |
3 4 5
|
s3cld |
|
10 |
|
s3len |
|
11 |
1
|
fvexi |
|
12 |
|
3nn0 |
|
13 |
|
wrdmap |
|
14 |
11 12 13
|
mp2an |
|
15 |
9 10 14
|
sylanblc |
|
16 |
6 7 8
|
s3cld |
|
17 |
|
s3len |
|
18 |
|
wrdmap |
|
19 |
11 12 18
|
mp2an |
|
20 |
16 17 19
|
sylanblc |
|
21 |
15 20
|
jca |
|
22 |
|
elex |
|
23 |
|
fveq2 |
|
24 |
23 1
|
eqtr4di |
|
25 |
24
|
oveq1d |
|
26 |
25
|
eleq2d |
|
27 |
25
|
eleq2d |
|
28 |
26 27
|
anbi12d |
|
29 |
|
fveq2 |
|
30 |
29
|
breqd |
|
31 |
|
fveq2 |
|
32 |
31
|
breqd |
|
33 |
30 32
|
anbi12d |
|
34 |
24 33
|
rexeqbidv |
|
35 |
28 34
|
anbi12d |
|
36 |
35
|
opabbidv |
|
37 |
|
df-leag |
|
38 |
|
ovex |
|
39 |
38 38
|
xpex |
|
40 |
|
opabssxp |
|
41 |
39 40
|
ssexi |
|
42 |
36 37 41
|
fvmpt |
|
43 |
2 22 42
|
3syl |
|
44 |
43
|
breqd |
|
45 |
|
simpr |
|
46 |
45
|
fveq1d |
|
47 |
45
|
fveq1d |
|
48 |
45
|
fveq1d |
|
49 |
46 47 48
|
s3eqd |
|
50 |
49
|
breq2d |
|
51 |
|
simpl |
|
52 |
51
|
fveq1d |
|
53 |
51
|
fveq1d |
|
54 |
51
|
fveq1d |
|
55 |
52 53 54
|
s3eqd |
|
56 |
|
eqidd |
|
57 |
46 47 56
|
s3eqd |
|
58 |
55 57
|
breq12d |
|
59 |
50 58
|
anbi12d |
|
60 |
59
|
rexbidv |
|
61 |
|
eqid |
|
62 |
60 61
|
brab2a |
|
63 |
62
|
a1i |
|
64 |
|
s3fv0 |
|
65 |
6 64
|
syl |
|
66 |
|
s3fv1 |
|
67 |
7 66
|
syl |
|
68 |
|
s3fv2 |
|
69 |
8 68
|
syl |
|
70 |
65 67 69
|
s3eqd |
|
71 |
70
|
breq2d |
|
72 |
|
s3fv0 |
|
73 |
3 72
|
syl |
|
74 |
|
s3fv1 |
|
75 |
4 74
|
syl |
|
76 |
|
s3fv2 |
|
77 |
5 76
|
syl |
|
78 |
73 75 77
|
s3eqd |
|
79 |
|
eqidd |
|
80 |
65 67 79
|
s3eqd |
|
81 |
78 80
|
breq12d |
|
82 |
71 81
|
anbi12d |
|
83 |
82
|
rexbidv |
|
84 |
83
|
anbi2d |
|
85 |
44 63 84
|
3bitrd |
|
86 |
21 85
|
mpbirand |
|