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Mirrors > Home > QLE Home > Th. List > u5lembi | Unicode version |
Description: Relevance implication and biconditional. |
Ref | Expression |
---|---|
u5lembi |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | u5lemc1b 685 | . . . . . . 7 | |
2 | 1 | comcom 453 | . . . . . 6 |
3 | u5lemc1 684 | . . . . . . 7 | |
4 | 3 | comcom 453 | . . . . . 6 |
5 | 2, 4 | com2an 484 | . . . . 5 |
6 | 2 | comcom2 183 | . . . . . 6 |
7 | 6, 4 | com2an 484 | . . . . 5 |
8 | 5, 7 | com2or 483 | . . . 4 |
9 | 4 | comcom2 183 | . . . . 5 |
10 | 6, 9 | com2an 484 | . . . 4 |
11 | 8, 10 | fh1 469 | . . 3 |
12 | 5, 7 | fh1 469 | . . . . . 6 |
13 | ancom 74 | . . . . . . . . 9 | |
14 | ancom 74 | . . . . . . . . . . 11 | |
15 | df-i5 48 | . . . . . . . . . . . 12 | |
16 | ax-a3 32 | . . . . . . . . . . . 12 | |
17 | 15, 16 | ax-r2 36 | . . . . . . . . . . 11 |
18 | 14, 17 | 2an 79 | . . . . . . . . . 10 |
19 | anabs 121 | . . . . . . . . . 10 | |
20 | 18, 19 | ax-r2 36 | . . . . . . . . 9 |
21 | 13, 20 | ax-r2 36 | . . . . . . . 8 |
22 | anandi 114 | . . . . . . . . 9 | |
23 | u5lemanb 619 | . . . . . . . . . . 11 | |
24 | u5lemaa 604 | . . . . . . . . . . 11 | |
25 | 23, 24 | 2an 79 | . . . . . . . . . 10 |
26 | ancom 74 | . . . . . . . . . . 11 | |
27 | an4 86 | . . . . . . . . . . . 12 | |
28 | dff 101 | . . . . . . . . . . . . . . 15 | |
29 | 28 | ax-r1 35 | . . . . . . . . . . . . . 14 |
30 | 29 | lan 77 | . . . . . . . . . . . . 13 |
31 | an0 108 | . . . . . . . . . . . . 13 | |
32 | 30, 31 | ax-r2 36 | . . . . . . . . . . . 12 |
33 | 27, 32 | ax-r2 36 | . . . . . . . . . . 11 |
34 | 26, 33 | ax-r2 36 | . . . . . . . . . 10 |
35 | 25, 34 | ax-r2 36 | . . . . . . . . 9 |
36 | 22, 35 | ax-r2 36 | . . . . . . . 8 |
37 | 21, 36 | 2or 72 | . . . . . . 7 |
38 | or0 102 | . . . . . . 7 | |
39 | 37, 38 | ax-r2 36 | . . . . . 6 |
40 | 12, 39 | ax-r2 36 | . . . . 5 |
41 | ancom 74 | . . . . . 6 | |
42 | ancom 74 | . . . . . . . 8 | |
43 | ax-a2 31 | . . . . . . . . 9 | |
44 | 15, 43 | ax-r2 36 | . . . . . . . 8 |
45 | 42, 44 | 2an 79 | . . . . . . 7 |
46 | anabs 121 | . . . . . . 7 | |
47 | 45, 46 | ax-r2 36 | . . . . . 6 |
48 | 41, 47 | ax-r2 36 | . . . . 5 |
49 | 40, 48 | 2or 72 | . . . 4 |
50 | id 59 | . . . 4 | |
51 | 49, 50 | ax-r2 36 | . . 3 |
52 | 11, 51 | ax-r2 36 | . 2 |
53 | df-i5 48 | . . 3 | |
54 | 53 | lan 77 | . 2 |
55 | dfb 94 | . 2 | |
56 | 52, 54, 55 | 3tr1 63 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wn 4 tb 5 wo 6 wa 7 wf 9 wi5 16 |
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-i5 48 df-le1 130 df-le2 131 df-c1 132 df-c2 133 |
This theorem is referenced by: oago3.21x 890 |
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