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| Mirrors > Home > MPE Home > Th. List > brcnv | Structured version Visualization version GIF version | ||
| Description: The converse of a binary relation swaps arguments. Theorem 11 of [Suppes] p. 61. (Contributed by NM, 13-Aug-1995.) |
| Ref | Expression |
|---|---|
| opelcnv.1 | ⊢ 𝐴 ∈ V |
| opelcnv.2 | ⊢ 𝐵 ∈ V |
| Ref | Expression |
|---|---|
| brcnv | ⊢ (𝐴◡𝑅𝐵 ↔ 𝐵𝑅𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | opelcnv.1 | . 2 ⊢ 𝐴 ∈ V | |
| 2 | opelcnv.2 | . 2 ⊢ 𝐵 ∈ V | |
| 3 | brcnvg 5823 | . 2 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → (𝐴◡𝑅𝐵 ↔ 𝐵𝑅𝐴)) | |
| 4 | 1, 2, 3 | mp2an 699 | 1 ⊢ (𝐴◡𝑅𝐵 ↔ 𝐵𝑅𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 208 ∈ wcel 2121 Vcvv 3433 class class class wbr 5074 ◡ccnv 5619 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-ext 2713 ax-sep 5220 ax-pr 5364 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-sb 2075 df-clab 2720 df-cleq 2733 df-clel 2816 df-rab 3394 df-v 3435 df-dif 3887 df-un 3889 df-in 3891 df-ss 3901 df-nul 4264 df-if 4457 df-sn 4558 df-pr 4560 df-op 4564 df-br 5075 df-opab 5137 df-cnv 5628 |
| This theorem is referenced by: cnvco 5833 dfrn2 5836 dfdm4 5843 cnvsym 6070 intasym 6071 asymref 6072 qfto 6077 dminss 6107 imainss 6108 dminxp 6134 cnvcnv3 6142 cnvpo 6241 cnvso 6242 dffun2 6498 funcnvsn 6538 funcnv2 6556 fun2cnv 6559 imadif 6572 funcnvmpt 6940 f1ompt 7055 foeqcnvco 7247 f1eqcocnv 7248 fliftcnv 7258 isocnv2 7278 fsplit 8058 ercnv 8659 ecid 8721 omxpenlem 9010 sbthcl 9031 fimax2g 9190 dfsup2 9351 eqinf 9392 infval 9394 infcllem 9395 wofib 9454 oemapso 9598 cflim2 10181 fin23lem40 10269 isfin1-3 10304 fin12 10331 negiso 12131 dfinfre 12132 infrenegsup 12134 xrinfmss2 13258 trclublem 14952 imasleval 17500 invsym2 17725 oppcsect2 17741 oduprs 18261 odupos 18287 oduposb 18288 odulub 18366 oduglb 18368 posglbdg 18374 chnrev 18588 gsumcom3 19947 ordtbas2 23177 ordtcnv 23187 ordtrest2 23190 utop2nei 24236 utop3cls 24237 dvlt0 25993 dvcnvrelem1 26005 nomaxmo 27682 ofpreima 32759 odutos 33049 tosglblem 33055 mgccnv 33080 ordtcnvNEW 34114 ordtrest2NEW 34117 xrge0iifiso 34129 erdszelem9 35440 coepr 35994 dffr5 35995 dfso2 35996 cnvco1 36000 cnvco2 36001 pocnv 36004 txpss3v 36117 brtxp 36119 brpprod3b 36126 idsset 36129 fixcnv 36147 brimage 36165 brcup 36178 brcap 36179 dfrecs2 36191 dfrdg4 36192 dfint3 36193 imagesset 36194 brlb 36196 fvline 36385 ellines 36393 trer 36557 poimirlem31 38031 poimir 38033 frinfm 38115 xrnss3v 38761 rencldnfilem 43278 cnvssco 44063 psshepw 44245 dffrege115 44435 frege131 44451 frege133 44453 brpermmodel 45460 lambert0 47362 lamberte 47363 gte-lteh 50228 gt-lth 50229 |
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