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Mirrors > Home > QLE Home > Th. List > comanblem2 | Unicode version |
Description: Lemma for biconditional commutation law. |
Ref | Expression |
---|---|
comanblem2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dfb 94 | . . . 4 | |
2 | dfb 94 | . . . 4 | |
3 | 1, 2 | 2an 79 | . . 3 |
4 | 3 | lan 77 | . 2 |
5 | comanr1 464 | . . . . . 6 | |
6 | comanr1 464 | . . . . . . 7 | |
7 | 6 | comcom6 459 | . . . . . 6 |
8 | 5, 7 | fh1 469 | . . . . 5 |
9 | anass 76 | . . . . . . . 8 | |
10 | 9 | ax-r1 35 | . . . . . . 7 |
11 | anidm 111 | . . . . . . . 8 | |
12 | 11 | ran 78 | . . . . . . 7 |
13 | 10, 12 | ax-r2 36 | . . . . . 6 |
14 | dff 101 | . . . . . . . . 9 | |
15 | 14 | ran 78 | . . . . . . . 8 |
16 | 15 | ax-r1 35 | . . . . . . 7 |
17 | anass 76 | . . . . . . 7 | |
18 | an0r 109 | . . . . . . 7 | |
19 | 16, 17, 18 | 3tr2 64 | . . . . . 6 |
20 | 13, 19 | 2or 72 | . . . . 5 |
21 | or0 102 | . . . . 5 | |
22 | 8, 20, 21 | 3tr 65 | . . . 4 |
23 | comanr1 464 | . . . . . 6 | |
24 | comanr1 464 | . . . . . . 7 | |
25 | 24 | comcom6 459 | . . . . . 6 |
26 | 23, 25 | fh1 469 | . . . . 5 |
27 | anass 76 | . . . . . . . 8 | |
28 | 27 | ax-r1 35 | . . . . . . 7 |
29 | anidm 111 | . . . . . . . 8 | |
30 | 29 | ran 78 | . . . . . . 7 |
31 | 28, 30 | ax-r2 36 | . . . . . 6 |
32 | dff 101 | . . . . . . . . 9 | |
33 | 32 | ran 78 | . . . . . . . 8 |
34 | 33 | ax-r1 35 | . . . . . . 7 |
35 | anass 76 | . . . . . . 7 | |
36 | 34, 35, 18 | 3tr2 64 | . . . . . 6 |
37 | 31, 36 | 2or 72 | . . . . 5 |
38 | or0 102 | . . . . 5 | |
39 | 26, 37, 38 | 3tr 65 | . . . 4 |
40 | 22, 39 | 2an 79 | . . 3 |
41 | an4 86 | . . 3 | |
42 | anandir 115 | . . 3 | |
43 | 40, 41, 42 | 3tr1 63 | . 2 |
44 | 4, 43 | ax-r2 36 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wn 4 tb 5 wo 6 wa 7 wf 9 |
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-le1 130 df-le2 131 df-c1 132 df-c2 133 |
This theorem is referenced by: comanb 872 |
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