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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 4757 | . 2 ⊢ ◡𝐴 = {〈𝑥, 𝑦〉 ∣ 𝑦𝐴𝑥} | |
| 2 | 1 | relopabi 4880 | 1 ⊢ Rel ◡𝐴 |
| Colors of variables: wff set class |
| Syntax hints: class class class wbr 4109 ◡ccnv 4748 Rel wrel 4754 |
| 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 2206 ax-ext 2214 ax-sep 4228 ax-pow 4287 ax-pr 4322 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ral 2525 df-rex 2526 df-v 2815 df-un 3215 df-in 3217 df-ss 3224 df-pw 3671 df-sn 3695 df-pr 3696 df-op 3698 df-opab 4172 df-xp 4755 df-rel 4756 df-cnv 4757 |
| This theorem is referenced by: relbrcnvg 5141 eliniseg2 5142 cnvsym 5146 intasym 5147 asymref 5148 cnvopab 5164 cnv0 5166 cnvdif 5169 dfrel2 5213 cnvcnv 5215 cnvsn0 5231 cnvcnvsn 5239 resdm2 5253 coi2 5279 coires1 5280 cnvssrndm 5284 unidmrn 5295 cnvexg 5300 cnviinm 5304 funi 5384 funcnvsn 5401 funcnv2 5416 funcnveq 5419 fcnvres 5550 f1cnvcnv 5584 f1ompt 5828 fliftcnv 5968 cnvf1o 6421 reldmtpos 6484 dmtpos 6487 rntpos 6488 dftpos3 6493 dftpos4 6494 tpostpos 6495 tposf12 6500 ercnv 6788 cnvct 7050 relcnvfi 7208 fsumcnv 12123 fisumcom2 12124 fprodcnv 12311 fprodcom2fi 12312 |
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