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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 4731 | . 2 ⊢ ◡𝐴 = {〈𝑥, 𝑦〉 ∣ 𝑦𝐴𝑥} | |
| 2 | 1 | relopabi 4853 | 1 ⊢ Rel ◡𝐴 |
| Colors of variables: wff set class |
| Syntax hints: class class class wbr 4086 ◡ccnv 4722 Rel wrel 4728 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-14 2203 ax-ext 2211 ax-sep 4205 ax-pow 4262 ax-pr 4297 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-v 2802 df-un 3202 df-in 3204 df-ss 3211 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-opab 4149 df-xp 4729 df-rel 4730 df-cnv 4731 |
| This theorem is referenced by: relbrcnvg 5113 eliniseg2 5114 cnvsym 5118 intasym 5119 asymref 5120 cnvopab 5136 cnv0 5138 cnvdif 5141 dfrel2 5185 cnvcnv 5187 cnvsn0 5203 cnvcnvsn 5211 resdm2 5225 coi2 5251 coires1 5252 cnvssrndm 5256 unidmrn 5267 cnvexg 5272 cnviinm 5276 funi 5356 funcnvsn 5372 funcnv2 5387 funcnveq 5390 fcnvres 5517 f1cnvcnv 5550 f1ompt 5794 fliftcnv 5931 cnvf1o 6385 reldmtpos 6414 dmtpos 6417 rntpos 6418 dftpos3 6423 dftpos4 6424 tpostpos 6425 tposf12 6430 ercnv 6718 cnvct 6979 relcnvfi 7131 fsumcnv 11988 fisumcom2 11989 fprodcnv 12176 fprodcom2fi 12177 |
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