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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 4739 | . 2 ⊢ ◡𝐴 = {〈𝑥, 𝑦〉 ∣ 𝑦𝐴𝑥} | |
| 2 | 1 | relopabi 4861 | 1 ⊢ Rel ◡𝐴 |
| Colors of variables: wff set class |
| Syntax hints: class class class wbr 4093 ◡ccnv 4730 Rel wrel 4736 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ral 2516 df-rex 2517 df-v 2805 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-opab 4156 df-xp 4737 df-rel 4738 df-cnv 4739 |
| This theorem is referenced by: relbrcnvg 5122 eliniseg2 5123 cnvsym 5127 intasym 5128 asymref 5129 cnvopab 5145 cnv0 5147 cnvdif 5150 dfrel2 5194 cnvcnv 5196 cnvsn0 5212 cnvcnvsn 5220 resdm2 5234 coi2 5260 coires1 5261 cnvssrndm 5265 unidmrn 5276 cnvexg 5281 cnviinm 5285 funi 5365 funcnvsn 5382 funcnv2 5397 funcnveq 5400 fcnvres 5528 f1cnvcnv 5562 f1ompt 5806 fliftcnv 5946 cnvf1o 6399 reldmtpos 6462 dmtpos 6465 rntpos 6466 dftpos3 6471 dftpos4 6472 tpostpos 6473 tposf12 6478 ercnv 6766 cnvct 7027 relcnvfi 7183 fsumcnv 12078 fisumcom2 12079 fprodcnv 12266 fprodcom2fi 12267 |
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