Step | Hyp | Ref
| Expression |
1 | | offval22.a |
. . . 4
|
2 | | offval22.b |
. . . 4
|
3 | | xpexg 6602 |
. . . 4
|
4 | 1, 2, 3 | syl2anc 661 |
. . 3
|
5 | | xp1st 6830 |
. . . . 5
|
6 | | xp2nd 6831 |
. . . . 5
|
7 | 5, 6 | jca 532 |
. . . 4
|
8 | | fvex 5881 |
. . . . . 6
|
9 | | fvex 5881 |
. . . . . 6
|
10 | | nfcv 2619 |
. . . . . . 7
|
11 | | nfcv 2619 |
. . . . . . 7
|
12 | | nfcv 2619 |
. . . . . . 7
|
13 | | nfv 1707 |
. . . . . . . 8
|
14 | | nfcsb1v 3450 |
. . . . . . . . 9
|
15 | 14 | nfel1 2635 |
. . . . . . . 8
|
16 | 13, 15 | nfim 1920 |
. . . . . . 7
|
17 | | nfv 1707 |
. . . . . . . 8
|
18 | | nfcsb1v 3450 |
. . . . . . . . 9
|
19 | 18 | nfel1 2635 |
. . . . . . . 8
|
20 | 17, 19 | nfim 1920 |
. . . . . . 7
|
21 | | eleq1 2529 |
. . . . . . . . 9
|
22 | 21 | 3anbi3d 1305 |
. . . . . . . 8
|
23 | | csbeq1a 3443 |
. . . . . . . . 9
|
24 | 23 | eleq1d 2526 |
. . . . . . . 8
|
25 | 22, 24 | imbi12d 320 |
. . . . . . 7
|
26 | | eleq1 2529 |
. . . . . . . . 9
|
27 | 26 | 3anbi2d 1304 |
. . . . . . . 8
|
28 | | csbeq1a 3443 |
. . . . . . . . 9
|
29 | 28 | eleq1d 2526 |
. . . . . . . 8
|
30 | 27, 29 | imbi12d 320 |
. . . . . . 7
|
31 | | offval22.c |
. . . . . . . 8
|
32 | | elex 3118 |
. . . . . . . 8
|
33 | 31, 32 | syl 16 |
. . . . . . 7
|
34 | 10, 11, 12, 16, 20, 25, 30, 33 | vtocl2gf 3169 |
. . . . . 6
|
35 | 8, 9, 34 | mp2an 672 |
. . . . 5
|
36 | 35 | 3expb 1197 |
. . . 4
|
37 | 7, 36 | sylan2 474 |
. . 3
|
38 | | nfcsb1v 3450 |
. . . . . . . . 9
|
39 | 38 | nfel1 2635 |
. . . . . . . 8
|
40 | 13, 39 | nfim 1920 |
. . . . . . 7
|
41 | | nfcsb1v 3450 |
. . . . . . . . 9
|
42 | 41 | nfel1 2635 |
. . . . . . . 8
|
43 | 17, 42 | nfim 1920 |
. . . . . . 7
|
44 | | csbeq1a 3443 |
. . . . . . . . 9
|
45 | 44 | eleq1d 2526 |
. . . . . . . 8
|
46 | 22, 45 | imbi12d 320 |
. . . . . . 7
|
47 | | csbeq1a 3443 |
. . . . . . . . 9
|
48 | 47 | eleq1d 2526 |
. . . . . . . 8
|
49 | 27, 48 | imbi12d 320 |
. . . . . . 7
|
50 | | offval22.d |
. . . . . . . 8
|
51 | | elex 3118 |
. . . . . . . 8
|
52 | 50, 51 | syl 16 |
. . . . . . 7
|
53 | 10, 11, 12, 40, 43, 46, 49, 52 | vtocl2gf 3169 |
. . . . . 6
|
54 | 8, 9, 53 | mp2an 672 |
. . . . 5
|
55 | 54 | 3expb 1197 |
. . . 4
|
56 | 7, 55 | sylan2 474 |
. . 3
|
57 | | offval22.f |
. . . 4
|
58 | | mpt2mpts 6864 |
. . . 4
|
59 | 57, 58 | syl6eq 2514 |
. . 3
|
60 | | offval22.g |
. . . 4
|
61 | | mpt2mpts 6864 |
. . . 4
|
62 | 60, 61 | syl6eq 2514 |
. . 3
|
63 | 4, 37, 56, 59, 62 | offval2 6556 |
. 2
|
64 | | csbov12g 6333 |
. . . . . . 7
|
65 | 64 | csbeq2dv 3835 |
. . . . . 6
|
66 | 8, 65 | ax-mp 5 |
. . . . 5
|
67 | | csbov12g 6333 |
. . . . . 6
|
68 | 9, 67 | ax-mp 5 |
. . . . 5
|
69 | 66, 68 | eqtr2i 2487 |
. . . 4
|
70 | 69 | mpteq2i 4535 |
. . 3
|
71 | | mpt2mpts 6864 |
. . 3
|
72 | 70, 71 | eqtr4i 2489 |
. 2
|
73 | 63, 72 | syl6eq 2514 |
1
|