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| Mirrors > Home > ILE Home > Th. List > brcnv | Unicode 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 |
|
| opelcnv.2 |
|
| Ref | Expression |
|---|---|
| brcnv |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | opelcnv.1 |
. 2
| |
| 2 | opelcnv.2 |
. 2
| |
| 3 | brcnvg 4917 |
. 2
| |
| 4 | 1, 2, 3 | mp2an 426 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-v 2805 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-br 4094 df-opab 4156 df-cnv 4739 |
| This theorem is referenced by: cnvco 4921 dfrn2 4924 dfdm4 4929 cnvsym 5127 intasym 5128 asymref 5129 qfto 5133 dminss 5158 imainss 5159 dminxp 5188 cnvcnv3 5193 cnvpom 5286 cnvsom 5287 dffun2 5343 funcnvsn 5382 funcnv2 5397 funcnveq 5400 fun2cnv 5401 imadif 5417 f1ompt 5806 f1eqcocnv 5942 fliftcnv 5946 isocnv2 5963 ercnv 6766 ecid 6810 cnvinfex 7277 eqinfti 7279 infvalti 7281 infmoti 7287 dfinfre 9195 pw1nct 16725 |
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