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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 5838 | . 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 3442 class class class wbr 5100 ◡ccnv 5633 |
| 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 5245 ax-pr 5381 |
| 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 3402 df-v 3444 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-sn 4583 df-pr 4585 df-op 4589 df-br 5101 df-opab 5163 df-cnv 5642 |
| This theorem is referenced by: cnvco 5844 dfrn2 5847 dfdm4 5854 cnvsym 6081 intasym 6082 asymref 6083 qfto 6088 dminss 6121 imainss 6122 dminxp 6148 cnvcnv3 6156 cnvpo 6255 cnvso 6256 dffun2 6512 funcnvsn 6552 funcnv2 6570 fun2cnv 6573 imadif 6586 funcnvmpt 6953 f1ompt 7067 foeqcnvco 7258 f1eqcocnv 7259 fliftcnv 7269 isocnv2 7289 fsplit 8071 ercnv 8669 ecid 8731 omxpenlem 9020 sbthcl 9041 fimax2g 9200 dfsup2 9361 eqinf 9402 infval 9404 infcllem 9405 wofib 9464 oemapso 9605 cflim2 10187 fin23lem40 10275 isfin1-3 10310 fin12 10337 negiso 12136 dfinfre 12137 infrenegsup 12139 xrinfmss2 13240 trclublem 14932 imasleval 17476 invsym2 17701 oppcsect2 17717 oduprs 18237 odupos 18263 oduposb 18264 odulub 18342 oduglb 18344 posglbdg 18350 chnrev 18564 gsumcom3 19924 ordtbas2 23152 ordtcnv 23162 ordtrest2 23165 utop2nei 24211 utop3cls 24212 dvlt0 25983 dvcnvrelem1 25995 nomaxmo 27683 ofpreima 32761 odutos 33067 tosglblem 33073 mgccnv 33098 ordtcnvNEW 34104 ordtrest2NEW 34107 xrge0iifiso 34119 erdszelem9 35421 coepr 35975 dffr5 35976 dfso2 35977 cnvco1 35981 cnvco2 35982 pocnv 35985 txpss3v 36098 brtxp 36100 brpprod3b 36107 idsset 36110 fixcnv 36128 brimage 36146 brcup 36159 brcap 36160 dfrecs2 36172 dfrdg4 36173 dfint3 36174 imagesset 36175 brlb 36177 fvline 36366 ellines 36374 trer 36538 poimirlem31 37931 poimir 37933 frinfm 38015 xrnss3v 38661 rencldnfilem 43206 cnvssco 43991 psshepw 44173 dffrege115 44363 frege131 44379 frege133 44381 brpermmodel 45388 lambert0 47276 lamberte 47277 gte-lteh 50114 gt-lth 50115 |
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