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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 5865 | . 2 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → (𝐴◡𝑅𝐵 ↔ 𝐵𝑅𝐴)) | |
| 4 | 1, 2, 3 | mp2an 704 | 1 ⊢ (𝐴◡𝑅𝐵 ↔ 𝐵𝑅𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 209 ∈ wcel 2141 Vcvv 3453 class class class wbr 5108 ◡ccnv 5660 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2143 ax-9 2151 ax-ext 2733 ax-sep 5256 ax-pr 5404 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-sb 2095 df-clab 2740 df-cleq 2753 df-clel 2836 df-rab 3415 df-v 3455 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4487 df-sn 4589 df-pr 4591 df-op 4595 df-br 5109 df-opab 5173 df-cnv 5669 |
| This theorem is referenced by: cnvco 5875 dfrn2 5878 dfdm4 5885 cnvsym 6114 intasym 6115 asymref 6116 qfto 6121 dminss 6150 imainss 6151 xpdifcnvepel 6166 dminxp 6178 cnvcnv3 6186 cnvpo 6288 cnvso 6289 dffun2 6546 funcnvsn 6586 funcnv2 6604 fun2cnv 6607 imadif 6620 funcnvmpt 6991 f1ompt 7106 foeqcnvco 7298 f1eqcocnv 7299 fliftcnv 7309 isocnv2 7329 fsplit 8111 ercnv 8715 ecid 8777 omxpenlem 9065 sbthcl 9086 fimax2g 9245 dfsup2 9403 eqinf 9444 infval 9446 infcllem 9447 wofib 9506 oemapso 9650 cflim2 10246 fin23lem40 10334 isfin1-3 10369 fin12 10396 negiso 12194 dfinfre 12195 infrenegsup 12197 xrinfmss2 13336 trclublem 15031 imasleval 17594 invsym2 17819 oppcsect2 17835 oduprs 18355 odupos 18381 oduposb 18382 odulub 18460 oduglb 18462 posglbdg 18468 chnrev 18682 gsumcom3 20047 ordtbas2 23327 ordtcnv 23337 ordtrest2 23340 utop2nei 24386 utop3cls 24387 dvlt0 26143 dvcnvrelem1 26155 nomaxmo 27838 ofpreima 32976 odutos 33254 tosglblem 33260 mgccnv 33285 ordtcnvNEW 34276 ordtrest2NEW 34279 xrge0iifiso 34291 erdszelem9 35645 coepr 36199 dffr5 36200 dfso2 36201 cnvco1 36205 cnvco2 36206 pocnv 36209 txpss3v 36322 brtxp 36324 brpprod3b 36331 idsset 36334 fixcnv 36352 brimage 36370 brcup 36383 brcap 36384 dfrecs2 36396 dfrdg4 36397 dfint3 36398 imagesset 36399 brlb 36401 fvline 36590 ellines 36598 trer 36771 poimirlem31 38246 poimir 38248 frinfm 38330 xrnss3v 38976 rencldnfilem 43495 cnvssco 44280 psshepw 44462 dffrege115 44652 frege131 44668 frege133 44670 brpermmodel 45660 lambert0 47569 lamberte 47570 gte-lteh 50449 gt-lth 50450 |
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