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Mirrors > Home > QLE Home > Th. List > bi4 | Unicode version |
Description: Chained biconditional. |
Ref | Expression |
---|---|
bi4 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | bi3 839 | . . 3 | |
2 | u12lembi 726 | . . . 4 | |
3 | 2 | ax-r1 35 | . . 3 |
4 | 1, 3 | 2an 79 | . 2 |
5 | df-i1 44 | . . . . . 6 | |
6 | 5 | lan 77 | . . . . 5 |
7 | leao2 163 | . . . . . . 7 | |
8 | 7 | lecom 180 | . . . . . 6 |
9 | leao4 165 | . . . . . . . . . 10 | |
10 | oran2 92 | . . . . . . . . . 10 | |
11 | 9, 10 | lbtr 139 | . . . . . . . . 9 |
12 | 11 | lecom 180 | . . . . . . . 8 |
13 | 12 | comcom 453 | . . . . . . 7 |
14 | 13 | comcom6 459 | . . . . . 6 |
15 | 8, 14 | fh2rc 480 | . . . . 5 |
16 | comanr2 465 | . . . . . . . . 9 | |
17 | 16 | comcom3 454 | . . . . . . . 8 |
18 | comanr1 464 | . . . . . . . . 9 | |
19 | 18 | comcom3 454 | . . . . . . . 8 |
20 | 17, 19 | fh2 470 | . . . . . . 7 |
21 | anass 76 | . . . . . . . . 9 | |
22 | dff 101 | . . . . . . . . . . 11 | |
23 | 22 | lan 77 | . . . . . . . . . 10 |
24 | 23 | ax-r1 35 | . . . . . . . . 9 |
25 | an0 108 | . . . . . . . . 9 | |
26 | 21, 24, 25 | 3tr 65 | . . . . . . . 8 |
27 | anass 76 | . . . . . . . . . 10 | |
28 | 27 | ax-r1 35 | . . . . . . . . 9 |
29 | anass 76 | . . . . . . . . . . 11 | |
30 | anidm 111 | . . . . . . . . . . . 12 | |
31 | 30 | lan 77 | . . . . . . . . . . 11 |
32 | 29, 31 | ax-r2 36 | . . . . . . . . . 10 |
33 | 32 | ran 78 | . . . . . . . . 9 |
34 | 28, 33 | ax-r2 36 | . . . . . . . 8 |
35 | 26, 34 | 2or 72 | . . . . . . 7 |
36 | or0r 103 | . . . . . . 7 | |
37 | 20, 35, 36 | 3tr 65 | . . . . . 6 |
38 | comanr2 465 | . . . . . . . 8 | |
39 | 38, 19 | fh2 470 | . . . . . . 7 |
40 | anass 76 | . . . . . . . . 9 | |
41 | anidm 111 | . . . . . . . . . 10 | |
42 | 41 | lan 77 | . . . . . . . . 9 |
43 | 40, 42 | ax-r2 36 | . . . . . . . 8 |
44 | an4 86 | . . . . . . . . 9 | |
45 | anass 76 | . . . . . . . . 9 | |
46 | 22 | ran 78 | . . . . . . . . . . . . 13 |
47 | 46 | ax-r1 35 | . . . . . . . . . . . 12 |
48 | anass 76 | . . . . . . . . . . . 12 | |
49 | an0r 109 | . . . . . . . . . . . 12 | |
50 | 47, 48, 49 | 3tr2 64 | . . . . . . . . . . 11 |
51 | 50 | lan 77 | . . . . . . . . . 10 |
52 | an0 108 | . . . . . . . . . 10 | |
53 | 51, 52 | ax-r2 36 | . . . . . . . . 9 |
54 | 44, 45, 53 | 3tr 65 | . . . . . . . 8 |
55 | 43, 54 | 2or 72 | . . . . . . 7 |
56 | or0 102 | . . . . . . 7 | |
57 | 39, 55, 56 | 3tr 65 | . . . . . 6 |
58 | 37, 57 | 2or 72 | . . . . 5 |
59 | 6, 15, 58 | 3tr 65 | . . . 4 |
60 | 59 | ran 78 | . . 3 |
61 | anass 76 | . . 3 | |
62 | anass 76 | . . . . . . . 8 | |
63 | an4 86 | . . . . . . . 8 | |
64 | ancom 74 | . . . . . . . . . . 11 | |
65 | u2lemab 611 | . . . . . . . . . . 11 | |
66 | 64, 65 | ax-r2 36 | . . . . . . . . . 10 |
67 | 66 | lan 77 | . . . . . . . . 9 |
68 | an32 83 | . . . . . . . . 9 | |
69 | 67, 68 | ax-r2 36 | . . . . . . . 8 |
70 | 62, 63, 69 | 3tr 65 | . . . . . . 7 |
71 | 70 | df2le1 135 | . . . . . 6 |
72 | 71 | lecom 180 | . . . . 5 |
73 | an32 83 | . . . . . . . . 9 | |
74 | leao4 165 | . . . . . . . . 9 | |
75 | 73, 74 | bltr 138 | . . . . . . . 8 |
76 | 75, 10 | lbtr 139 | . . . . . . 7 |
77 | 76 | lecom 180 | . . . . . 6 |
78 | 77 | comcom7 460 | . . . . 5 |
79 | 72, 78 | fh2r 474 | . . . 4 |
80 | anass 76 | . . . . . 6 | |
81 | ancom 74 | . . . . . . . 8 | |
82 | u2lemanb 616 | . . . . . . . 8 | |
83 | 81, 82 | ax-r2 36 | . . . . . . 7 |
84 | 83 | lan 77 | . . . . . 6 |
85 | an12 81 | . . . . . . 7 | |
86 | ancom 74 | . . . . . . 7 | |
87 | 85, 86 | ax-r2 36 | . . . . . 6 |
88 | 80, 84, 87 | 3tr 65 | . . . . 5 |
89 | 70, 88 | 2or 72 | . . . 4 |
90 | 79, 89 | ax-r2 36 | . . 3 |
91 | 60, 61, 90 | 3tr2 64 | . 2 |
92 | 4, 91 | ax-r2 36 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wn 4 tb 5 wo 6 wa 7 wf 9 wi1 12 wi2 13 |
This theorem was proved from axioms: ax-a1 30 ax-a2 31 ax-a3 32 ax-a4 33 ax-a5 34 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 ax-r3 439 |
This theorem depends on definitions: df-b 39 df-a 40 df-t 41 df-f 42 df-i1 44 df-i2 45 df-le1 130 df-le2 131 df-c1 132 df-c2 133 |
This theorem is referenced by: mhcor1 888 |
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