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Mirrors > Home > ILE Home > Th. List > relcnv | GIF version |
Description: A converse is a relation. Theorem 12 of [Suppes] p. 62. (Contributed by NM, 29-Oct-1996.) |
Ref | Expression |
---|---|
relcnv | ⊢ Rel ◡𝐴 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-cnv 4555 | . 2 ⊢ ◡𝐴 = {〈𝑥, 𝑦〉 ∣ 𝑦𝐴𝑥} | |
2 | 1 | relopabi 4673 | 1 ⊢ Rel ◡𝐴 |
Colors of variables: wff set class |
Syntax hints: class class class wbr 3937 ◡ccnv 4546 Rel wrel 4552 |
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 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-14 1493 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 ax-sep 4054 ax-pow 4106 ax-pr 4139 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1335 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-ral 2422 df-rex 2423 df-v 2691 df-un 3080 df-in 3082 df-ss 3089 df-pw 3517 df-sn 3538 df-pr 3539 df-op 3541 df-opab 3998 df-xp 4553 df-rel 4554 df-cnv 4555 |
This theorem is referenced by: relbrcnvg 4926 cnvsym 4930 intasym 4931 asymref 4932 cnvopab 4948 cnv0 4950 cnvdif 4953 dfrel2 4997 cnvcnv 4999 cnvsn0 5015 cnvcnvsn 5023 resdm2 5037 coi2 5063 coires1 5064 cnvssrndm 5068 unidmrn 5079 cnvexg 5084 cnviinm 5088 funi 5163 funcnvsn 5176 funcnv2 5191 funcnveq 5194 fcnvres 5314 f1cnvcnv 5347 f1ompt 5579 fliftcnv 5704 cnvf1o 6130 reldmtpos 6158 dmtpos 6161 rntpos 6162 dftpos3 6167 dftpos4 6168 tpostpos 6169 tposf12 6174 ercnv 6458 cnvct 6711 relcnvfi 6837 fsumcnv 11238 fisumcom2 11239 |
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