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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 4733 | . 2 ⊢ ◡𝐴 = {〈𝑥, 𝑦〉 ∣ 𝑦𝐴𝑥} | |
| 2 | 1 | relopabi 4855 | 1 ⊢ Rel ◡𝐴 |
| Colors of variables: wff set class |
| Syntax hints: class class class wbr 4088 ◡ccnv 4724 Rel wrel 4730 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-v 2804 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-opab 4151 df-xp 4731 df-rel 4732 df-cnv 4733 |
| This theorem is referenced by: relbrcnvg 5115 eliniseg2 5116 cnvsym 5120 intasym 5121 asymref 5122 cnvopab 5138 cnv0 5140 cnvdif 5143 dfrel2 5187 cnvcnv 5189 cnvsn0 5205 cnvcnvsn 5213 resdm2 5227 coi2 5253 coires1 5254 cnvssrndm 5258 unidmrn 5269 cnvexg 5274 cnviinm 5278 funi 5358 funcnvsn 5375 funcnv2 5390 funcnveq 5393 fcnvres 5520 f1cnvcnv 5553 f1ompt 5798 fliftcnv 5935 cnvf1o 6389 reldmtpos 6418 dmtpos 6421 rntpos 6422 dftpos3 6427 dftpos4 6428 tpostpos 6429 tposf12 6434 ercnv 6722 cnvct 6983 relcnvfi 7139 fsumcnv 11997 fisumcom2 11998 fprodcnv 12185 fprodcom2fi 12186 |
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