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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 5861 | . 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 2145 Vcvv 3450 class class class wbr 5103 ◡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 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2732 ax-sep 5251 ax-pr 5398 |
| 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 2100 df-clab 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-v 3452 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-br 5104 df-opab 5168 df-cnv 5663 |
| This theorem is used by: cnvco 5871 dfrn2 5874 dfdm4 5881 cnvsym 6110 intasym 6111 asymref 6112 qfto 6117 dminss 6146 imainss 6147 cnvxp 6150 xpdifcnvepel 6163 dminxp 6175 cnvcnv3 6183 cnvpo 6287 cnvso 6288 dffun2 6545 funcnvsn 6586 funcnv2 6604 fun2cnv 6607 imadif 6620 funcnvmpt 6991 f1ompt 7107 foeqcnvco 7304 f1eqcocnv 7305 fliftcnv 7315 isocnv2 7335 fsplit 8119 ercnv 8725 ecid 8787 omxpenlem 9083 sbthcl 9104 fimax2g 9263 dfsup2 9421 eqinf 9462 infval 9464 infcllem 9465 wofib 9524 oemapso 9668 cflim2 10290 fin23lem40 10378 isfin1-3 10413 fin12 10440 negiso 12244 dfinfre 12245 infrenegsup 12247 xrinfmss2 13388 trclublem 15093 imasleval 17652 invsym2 17877 oppcsect2 17893 oduprs 18413 odupos 18439 oduposb 18440 odulub 18518 oduglb 18520 posglbdg 18526 chnrev 18740 gsumcom3 20131 ordtbas2 23448 ordtcnv 23458 ordtrest2 23461 utop2nei 24508 utop3cls 24509 dvlt0 26264 dvcnvrelem1 26276 nomaxmo 27966 ofpreima 33170 odutos 33440 tosglblem 33446 mgccnv 33471 ordtcnvNEW 34463 ordtrest2NEW 34466 xrge0iifiso 34478 erdszelem9 35861 coepr 36415 dffr5 36416 dfso2 36417 cnvco1 36421 cnvco2 36422 pocnv 36425 txpss3v 36538 brtxp 36540 brpprod3b 36547 idsset 36550 fixcnv 36568 brimage 36586 brcup 36599 brcap 36600 dfrecs2 36612 dfrdg4 36613 dfint3 36614 imagesset 36615 brlb 36617 fvline 36807 ellines 36815 trer 37002 poimirlem31 38465 poimir 38467 frinfm 38550 xrnss3v 39194 rencldnfilem 43726 cnvssco 44511 psshepw 44693 dffrege115 44883 frege131 44899 frege133 44901 brpermmodel 45891 lambert0 47820 lamberte 47821 gte-lteh 50717 gt-lth 50718 |
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