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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 5827 | . 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 3439 class class class wbr 5097 ◡ccnv 5622 |
| 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 5240 ax-nul 5250 ax-pr 5376 |
| 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 3399 df-v 3441 df-dif 3903 df-un 3905 df-ss 3917 df-nul 4285 df-if 4479 df-sn 4580 df-pr 4582 df-op 4586 df-br 5098 df-opab 5160 df-cnv 5631 |
| This theorem is referenced by: cnvco 5833 dfrn2 5836 dfdm4 5843 cnvsym 6070 intasym 6071 asymref 6072 qfto 6077 dminss 6110 imainss 6111 dminxp 6137 cnvcnv3 6145 cnvpo 6244 cnvso 6245 dffun2 6501 funcnvsn 6541 funcnv2 6559 fun2cnv 6562 imadif 6575 funcnvmpt 6942 f1ompt 7056 foeqcnvco 7246 f1eqcocnv 7247 fliftcnv 7257 isocnv2 7277 fsplit 8059 ercnv 8657 ecid 8719 omxpenlem 9008 sbthcl 9029 fimax2g 9188 dfsup2 9349 eqinf 9390 infval 9392 infcllem 9393 wofib 9452 oemapso 9593 cflim2 10175 fin23lem40 10263 isfin1-3 10298 fin12 10325 negiso 12124 dfinfre 12125 infrenegsup 12127 xrinfmss2 13228 trclublem 14920 imasleval 17464 invsym2 17689 oppcsect2 17705 oduprs 18225 odupos 18251 oduposb 18252 odulub 18330 oduglb 18332 posglbdg 18338 chnrev 18552 gsumcom3 19909 ordtbas2 23137 ordtcnv 23147 ordtrest2 23150 utop2nei 24196 utop3cls 24197 dvlt0 25968 dvcnvrelem1 25980 nomaxmo 27668 ofpreima 32723 odutos 33029 tosglblem 33035 mgccnv 33060 ordtcnvNEW 34056 ordtrest2NEW 34059 xrge0iifiso 34071 erdszelem9 35372 coepr 35926 dffr5 35927 dfso2 35928 cnvco1 35932 cnvco2 35933 pocnv 35936 txpss3v 36049 brtxp 36051 brpprod3b 36058 idsset 36061 fixcnv 36079 brimage 36097 brcup 36110 brcap 36111 dfrecs2 36123 dfrdg4 36124 dfint3 36125 imagesset 36126 brlb 36128 fvline 36317 ellines 36325 trer 36489 poimirlem31 37821 poimir 37823 frinfm 37905 xrnss3v 38551 rencldnfilem 43099 cnvssco 43884 psshepw 44066 dffrege115 44256 frege131 44272 frege133 44274 brpermmodel 45281 lambert0 47170 lamberte 47171 gte-lteh 50008 gt-lth 50009 |
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