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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 2147 Vcvv 3454 class class class wbr 5106 ◡ccnv 5654 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 ax-sep 5252 ax-pr 5395 |
| 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 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4839 df-br 5107 df-opab 5171 df-cnv 5663 |
| This theorem is used by: cnvco 5873 dfrn2 5876 dfdm4 5883 cnvsym 6119 intasym 6120 asymref 6121 qfto 6126 dminss 6154 imainss 6155 cnvxp 6158 xpdifcnvepel 6171 dminxp 6183 cnvcnv3 6191 idresdmsscocnv1 6274 cnvpo 6305 cnvso 6306 dffun2 6565 funcnvsn 6609 funcnv2 6627 fun2cnv 6630 imadif 6643 funcnvmpt 7015 f1ompt 7132 foeqcnvco 7328 f1eqcocnv 7329 fliftcnv 7339 isocnv2 7359 fsplit 8152 ercnv 8764 ecid 8826 omxpenlem 9122 sbthcl 9143 fimax2g 9302 dfsup2 9460 eqinf 9501 infval 9503 infcllem 9504 wofib 9563 oemapso 9707 cflim2 10365 fin23lem40 10453 isfin1-3 10488 fin12 10515 negiso 12321 dfinfre 12322 infrenegsup 12324 xrinfmss2 13465 trclublem 15174 imasleval 17739 invsym2 17964 oppcsect2 17980 oduprs 18500 odupos 18526 oduposb 18527 odulub 18605 oduglb 18607 posglbdg 18613 chnrev 18827 gsumcom3 20219 ordtbas2 23536 ordtcnv 23546 ordtrest2 23549 utop2nei 24596 utop3cls 24597 dvlt0 26352 dvcnvrelem1 26364 nomaxmo 28082 ofpreima 33328 odutos 33596 tosglblem 33602 mgccnv 33627 ordtcnvNEW 34619 ordtrest2NEW 34622 xrge0iifiso 34634 erdszelem9 36130 coepr 36695 dffr5 36696 dfso2 36697 cnvco1 36701 cnvco2 36702 pocnv 36705 txpss3v 36817 brtxp 36819 brpprod3b 36826 idsset 36829 fixcnv 36847 brimage 36865 brcup 36878 brcap 36879 dfrecs2 36891 dfrdg4 36892 dfint3 36893 imagesset 36894 brlb 36896 fvline 37086 ellines 37094 trer 37281 poimirlem31 38760 poimir 38762 frinfm 38860 xrnss3v 39504 rencldnfilem 44018 cnvssco 44796 psshepw 44978 dffrege115 45168 frege131 45184 frege133 45186 brpermmodel 46186 lambert0 48140 lamberte 48141 gte-lteh 51097 gt-lth 51098 |
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