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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 4782 | . 2 ⊢ ◡𝐴 = {〈𝑥, 𝑦〉 ∣ 𝑦𝐴𝑥} | |
| 2 | 1 | relopabi 4905 | 1 ⊢ Rel ◡𝐴 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: class class class wbr 4130 ◡ccnv 4773 Rel wrel 4779 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4249 ax-pow 4311 ax-pr 4346 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-opab 4193 df-xp 4780 df-rel 4781 df-cnv 4782 |
| This theorem is used by: relbrcnvg 5166 eliniseg2 5167 cnvsym 5171 intasym 5172 asymref 5173 cnvopab 5189 cnv0 5191 cnvdif 5194 dfrel2 5238 cnvcnv 5240 cnvsn0 5256 cnvcnvsn 5264 resdm2 5278 coi2 5304 coires1 5305 cnvssrndm 5309 unidmrn 5320 cnvexg 5325 cnviinm 5329 funi 5409 funcnvsn 5426 funcnv2 5441 funcnveq 5444 fcnvres 5575 f1cnvcnv 5609 f1ompt 5859 fliftcnv 6001 cnvf1o 6461 reldmtpos 6524 dmtpos 6527 rntpos 6528 dftpos3 6533 dftpos4 6534 tpostpos 6535 tposf12 6540 ercnv 6828 cnvct 7097 relcnvfi 7255 fsumcnv 12204 fisumcom2 12205 fprodcnv 12392 fprodcom2fi 12393 |
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