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Mirrors > Home > ILE Home > Th. List > cnvf1o | Unicode version |
Description: Describe a function that maps the elements of a set to its converse bijectively. (Contributed by Mario Carneiro, 27-Apr-2014.) |
Ref | Expression |
---|---|
cnvf1o |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2137 | . 2 | |
2 | snexg 4103 | . . . 4 | |
3 | cnvexg 5071 | . . . 4 | |
4 | uniexg 4356 | . . . 4 | |
5 | 2, 3, 4 | 3syl 17 | . . 3 |
6 | 5 | adantl 275 | . 2 |
7 | snexg 4103 | . . . 4 | |
8 | cnvexg 5071 | . . . 4 | |
9 | uniexg 4356 | . . . 4 | |
10 | 7, 8, 9 | 3syl 17 | . . 3 |
11 | 10 | adantl 275 | . 2 |
12 | cnvf1olem 6114 | . . 3 | |
13 | relcnv 4912 | . . . . 5 | |
14 | simpr 109 | . . . . 5 | |
15 | cnvf1olem 6114 | . . . . 5 | |
16 | 13, 14, 15 | sylancr 410 | . . . 4 |
17 | dfrel2 4984 | . . . . . . 7 | |
18 | eleq2 2201 | . . . . . . 7 | |
19 | 17, 18 | sylbi 120 | . . . . . 6 |
20 | 19 | anbi1d 460 | . . . . 5 |
21 | 20 | adantr 274 | . . . 4 |
22 | 16, 21 | mpbid 146 | . . 3 |
23 | 12, 22 | impbida 585 | . 2 |
24 | 1, 6, 11, 23 | f1od 5966 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wceq 1331 wcel 1480 cvv 2681 csn 3522 cuni 3731 cmpt 3984 ccnv 4533 wrel 4539 wf1o 5117 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 ax-sep 4041 ax-pow 4093 ax-pr 4126 ax-un 4350 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-eu 2000 df-mo 2001 df-clab 2124 df-cleq 2130 df-clel 2133 df-nfc 2268 df-ral 2419 df-rex 2420 df-v 2683 df-sbc 2905 df-un 3070 df-in 3072 df-ss 3079 df-pw 3507 df-sn 3528 df-pr 3529 df-op 3531 df-uni 3732 df-br 3925 df-opab 3985 df-mpt 3986 df-id 4210 df-xp 4540 df-rel 4541 df-cnv 4542 df-co 4543 df-dm 4544 df-rn 4545 df-iota 5083 df-fun 5120 df-fn 5121 df-f 5122 df-f1 5123 df-fo 5124 df-f1o 5125 df-fv 5126 df-1st 6031 df-2nd 6032 |
This theorem is referenced by: tposf12 6159 cnven 6695 xpcomf1o 6712 fsumcnv 11199 |
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