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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 5856 | . 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 2144 Vcvv 3450 class class class wbr 5102 ◡ccnv 5649 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 ax-sep 5248 ax-pr 5390 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-v 3452 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-sn 4584 df-pr 4586 df-op 4590 df-br 5103 df-opab 5167 df-cnv 5658 |
| This theorem is used by: cnvco 5866 dfrn2 5869 dfdm4 5876 cnvsym 6107 intasym 6108 asymref 6109 qfto 6114 dminss 6142 imainss 6143 cnvxp 6146 xpdifcnvepel 6159 dminxp 6171 cnvcnv3 6179 cnvpo 6290 cnvso 6291 dffun2 6548 funcnvsn 6590 funcnv2 6608 fun2cnv 6611 imadif 6624 funcnvmpt 6995 f1ompt 7111 foeqcnvco 7308 f1eqcocnv 7309 fliftcnv 7319 isocnv2 7339 fsplit 8128 ercnv 8739 ecid 8801 omxpenlem 9097 sbthcl 9118 fimax2g 9277 dfsup2 9436 eqinf 9477 infval 9479 infcllem 9480 wofib 9539 oemapso 9683 cflim2 10341 fin23lem40 10429 isfin1-3 10464 fin12 10491 negiso 12297 dfinfre 12298 infrenegsup 12300 xrinfmss2 13441 trclublem 15148 imasleval 17713 invsym2 17938 oppcsect2 17954 oduprs 18474 odupos 18500 oduposb 18501 odulub 18579 oduglb 18581 posglbdg 18587 chnrev 18801 gsumcom3 20192 ordtbas2 23509 ordtcnv 23519 ordtrest2 23522 utop2nei 24569 utop3cls 24570 dvlt0 26325 dvcnvrelem1 26337 nomaxmo 28055 ofpreima 33259 odutos 33529 tosglblem 33535 mgccnv 33560 ordtcnvNEW 34552 ordtrest2NEW 34555 xrge0iifiso 34567 erdszelem9 35964 coepr 36518 dffr5 36519 dfso2 36520 cnvco1 36524 cnvco2 36525 pocnv 36528 txpss3v 36640 brtxp 36642 brpprod3b 36649 idsset 36652 fixcnv 36670 brimage 36688 brcup 36701 brcap 36702 dfrecs2 36714 dfrdg4 36715 dfint3 36716 imagesset 36717 brlb 36719 fvline 36909 ellines 36917 trer 37104 poimirlem31 38570 poimir 38572 frinfm 38670 xrnss3v 39314 rencldnfilem 43827 cnvssco 44606 psshepw 44788 dffrege115 44978 frege131 44994 frege133 44996 brpermmodel 45993 lambert0 47937 lamberte 47938 gte-lteh 50819 gt-lth 50820 |
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