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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 5863 | . 2 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → (𝐴◡𝑅𝐵 ↔ 𝐵𝑅𝐴)) | |
| 4 | 1, 2, 3 | mp2an 705 | 1 ⊢ (𝐴◡𝑅𝐵 ↔ 𝐵𝑅𝐴) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ∈ wcel 2145 Vcvv 3453 class class class wbr 5107 ◡ccnv 5658 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2734 ax-sep 5255 ax-pr 5402 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2741 df-cleq 2754 df-clel 2837 df-rab 3415 df-v 3455 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4283 df-if 4486 df-sn 4588 df-pr 4590 df-op 4594 df-br 5108 df-opab 5172 df-cnv 5667 |
| This theorem is used by: cnvco 5873 dfrn2 5876 dfdm4 5883 cnvsym 6112 intasym 6113 asymref 6114 qfto 6119 dminss 6148 imainss 6149 cnvxp 6152 xpdifcnvepel 6165 dminxp 6177 cnvcnv3 6185 cnvpo 6289 cnvso 6290 dffun2 6547 funcnvsn 6587 funcnv2 6605 fun2cnv 6608 imadif 6621 funcnvmpt 6992 f1ompt 7107 foeqcnvco 7304 f1eqcocnv 7305 fliftcnv 7315 isocnv2 7335 fsplit 8117 ercnv 8721 ecid 8783 omxpenlem 9079 sbthcl 9100 fimax2g 9259 dfsup2 9417 eqinf 9458 infval 9460 infcllem 9461 wofib 9520 oemapso 9664 cflim2 10268 fin23lem40 10356 isfin1-3 10391 fin12 10418 negiso 12220 dfinfre 12221 infrenegsup 12223 xrinfmss2 13363 trclublem 15068 imasleval 17629 invsym2 17854 oppcsect2 17870 oduprs 18390 odupos 18416 oduposb 18417 odulub 18495 oduglb 18497 posglbdg 18503 chnrev 18717 gsumcom3 20104 ordtbas2 23415 ordtcnv 23425 ordtrest2 23428 utop2nei 24475 utop3cls 24476 dvlt0 26232 dvcnvrelem1 26244 nomaxmo 27930 ofpreima 33123 odutos 33393 tosglblem 33399 mgccnv 33424 ordtcnvNEW 34415 ordtrest2NEW 34418 xrge0iifiso 34430 erdszelem9 35763 coepr 36317 dffr5 36318 dfso2 36319 cnvco1 36323 cnvco2 36324 pocnv 36327 txpss3v 36440 brtxp 36442 brpprod3b 36449 idsset 36452 fixcnv 36470 brimage 36488 brcup 36501 brcap 36502 dfrecs2 36514 dfrdg4 36515 dfint3 36516 imagesset 36517 brlb 36519 fvline 36709 ellines 36717 trer 36920 poimirlem31 38385 poimir 38387 frinfm 38470 xrnss3v 39114 rencldnfilem 43646 cnvssco 44431 psshepw 44613 dffrege115 44803 frege131 44819 frege133 44821 brpermmodel 45811 lambert0 47740 lamberte 47741 gte-lteh 50637 gt-lth 50638 |
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