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| Mirrors > Home > ILE Home > Th. List > brcnvg | Unicode version | ||
| Description: The converse of a binary relation swaps arguments. Theorem 11 of [Suppes] p. 61. (Contributed by NM, 10-Oct-2005.) | 
| Ref | Expression | 
|---|---|
| brcnvg | 
 | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | opelcnvg 4846 | 
. 2
 | |
| 2 | df-br 4034 | 
. 2
 | |
| 3 | df-br 4034 | 
. 2
 | |
| 4 | 1, 2, 3 | 3bitr4g 223 | 
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 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-14 2170 ax-ext 2178 ax-sep 4151 ax-pow 4207 ax-pr 4242 | 
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1475 df-sb 1777 df-eu 2048 df-mo 2049 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-v 2765 df-un 3161 df-in 3163 df-ss 3170 df-pw 3607 df-sn 3628 df-pr 3629 df-op 3631 df-br 4034 df-opab 4095 df-cnv 4671 | 
| This theorem is referenced by: brcnv 4849 brelrng 4897 eliniseg 5039 relbrcnvg 5048 brcodir 5057 sefvex 5579 foeqcnvco 5837 isocnv2 5859 ersym 6604 brdifun 6619 ecidg 6658 cnvti 7085 eqinfti 7086 inflbti 7090 infglbti 7091 negiso 8982 xrnegiso 11427 znleval 14209 pw1nct 15647 | 
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