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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 5832 | . 2 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → (𝐴◡𝑅𝐵 ↔ 𝐵𝑅𝐴)) | |
| 4 | 1, 2, 3 | mp2an 693 | 1 ⊢ (𝐴◡𝑅𝐵 ↔ 𝐵𝑅𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∈ wcel 2114 Vcvv 3430 class class class wbr 5086 ◡ccnv 5627 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 ax-sep 5232 ax-pr 5374 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-sn 4569 df-pr 4571 df-op 4575 df-br 5087 df-opab 5149 df-cnv 5636 |
| This theorem is referenced by: cnvco 5838 dfrn2 5841 dfdm4 5848 cnvsym 6075 intasym 6076 asymref 6077 qfto 6082 dminss 6115 imainss 6116 dminxp 6142 cnvcnv3 6150 cnvpo 6249 cnvso 6250 dffun2 6506 funcnvsn 6546 funcnv2 6564 fun2cnv 6567 imadif 6580 funcnvmpt 6947 f1ompt 7061 foeqcnvco 7252 f1eqcocnv 7253 fliftcnv 7263 isocnv2 7283 fsplit 8064 ercnv 8662 ecid 8724 omxpenlem 9013 sbthcl 9034 fimax2g 9193 dfsup2 9354 eqinf 9395 infval 9397 infcllem 9398 wofib 9457 oemapso 9600 cflim2 10182 fin23lem40 10270 isfin1-3 10305 fin12 10332 negiso 12133 dfinfre 12134 infrenegsup 12136 xrinfmss2 13260 trclublem 14954 imasleval 17502 invsym2 17727 oppcsect2 17743 oduprs 18263 odupos 18289 oduposb 18290 odulub 18368 oduglb 18370 posglbdg 18376 chnrev 18590 gsumcom3 19950 ordtbas2 23172 ordtcnv 23182 ordtrest2 23185 utop2nei 24231 utop3cls 24232 dvlt0 25988 dvcnvrelem1 26000 nomaxmo 27682 ofpreima 32759 odutos 33049 tosglblem 33055 mgccnv 33080 ordtcnvNEW 34086 ordtrest2NEW 34089 xrge0iifiso 34101 erdszelem9 35403 coepr 35957 dffr5 35958 dfso2 35959 cnvco1 35963 cnvco2 35964 pocnv 35967 txpss3v 36080 brtxp 36082 brpprod3b 36089 idsset 36092 fixcnv 36110 brimage 36128 brcup 36141 brcap 36142 dfrecs2 36154 dfrdg4 36155 dfint3 36156 imagesset 36157 brlb 36159 fvline 36348 ellines 36356 trer 36520 poimirlem31 37994 poimir 37996 frinfm 38078 xrnss3v 38724 rencldnfilem 43274 cnvssco 44059 psshepw 44241 dffrege115 44431 frege131 44447 frege133 44449 brpermmodel 45456 lambert0 47355 lamberte 47356 gte-lteh 50221 gt-lth 50222 |
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