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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 693 | 1 ⊢ (𝐴◡𝑅𝐵 ↔ 𝐵𝑅𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∈ wcel 2114 Vcvv 3427 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 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2707 ax-sep 5220 ax-pr 5364 |
| 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 2714 df-cleq 2727 df-clel 2810 df-rab 3388 df-v 3429 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 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 5829 dfrn2 5832 dfdm4 5839 cnvsym 6066 intasym 6067 asymref 6068 qfto 6073 dminss 6106 imainss 6107 dminxp 6133 cnvcnv3 6141 cnvpo 6240 cnvso 6241 dffun2 6497 funcnvsn 6537 funcnv2 6555 fun2cnv 6558 imadif 6571 funcnvmpt 6938 f1ompt 7052 foeqcnvco 7244 f1eqcocnv 7245 fliftcnv 7255 isocnv2 7275 fsplit 8056 ercnv 8654 ecid 8716 omxpenlem 9005 sbthcl 9026 fimax2g 9185 dfsup2 9346 eqinf 9387 infval 9389 infcllem 9390 wofib 9449 oemapso 9592 cflim2 10174 fin23lem40 10262 isfin1-3 10297 fin12 10324 negiso 12125 dfinfre 12126 infrenegsup 12128 xrinfmss2 13252 trclublem 14946 imasleval 17494 invsym2 17719 oppcsect2 17735 oduprs 18255 odupos 18281 oduposb 18282 odulub 18360 oduglb 18362 posglbdg 18368 chnrev 18582 gsumcom3 19942 ordtbas2 23144 ordtcnv 23154 ordtrest2 23157 utop2nei 24203 utop3cls 24204 dvlt0 25960 dvcnvrelem1 25972 nomaxmo 27650 ofpreima 32726 odutos 33016 tosglblem 33022 mgccnv 33047 ordtcnvNEW 34052 ordtrest2NEW 34055 xrge0iifiso 34067 erdszelem9 35369 coepr 35923 dffr5 35924 dfso2 35925 cnvco1 35929 cnvco2 35930 pocnv 35933 txpss3v 36046 brtxp 36048 brpprod3b 36055 idsset 36058 fixcnv 36076 brimage 36094 brcup 36107 brcap 36108 dfrecs2 36120 dfrdg4 36121 dfint3 36122 imagesset 36123 brlb 36125 fvline 36314 ellines 36322 trer 36486 poimirlem31 37960 poimir 37962 frinfm 38044 xrnss3v 38690 rencldnfilem 43236 cnvssco 44021 psshepw 44203 dffrege115 44393 frege131 44409 frege133 44411 brpermmodel 45418 lambert0 47323 lamberte 47324 gte-lteh 50189 gt-lth 50190 |
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