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Mirrors > Home > ILE Home > Th. List > opelcnv | Unicode version |
Description: Ordered-pair membership in converse. (Contributed by NM, 13-Aug-1995.) |
Ref | Expression |
---|---|
opelcnv.1 |
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opelcnv.2 |
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Ref | Expression |
---|---|
opelcnv |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | opelcnv.1 |
. 2
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2 | opelcnv.2 |
. 2
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3 | opelcnvg 4616 |
. 2
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4 | 1, 2, 3 | mp2an 417 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 665 ax-5 1381 ax-7 1382 ax-gen 1383 ax-ie1 1427 ax-ie2 1428 ax-8 1440 ax-10 1441 ax-11 1442 ax-i12 1443 ax-bndl 1444 ax-4 1445 ax-14 1450 ax-17 1464 ax-i9 1468 ax-ial 1472 ax-i5r 1473 ax-ext 2070 ax-sep 3957 ax-pow 4009 ax-pr 4036 |
This theorem depends on definitions: df-bi 115 df-3an 926 df-tru 1292 df-nf 1395 df-sb 1693 df-eu 1951 df-mo 1952 df-clab 2075 df-cleq 2081 df-clel 2084 df-nfc 2217 df-v 2621 df-un 3003 df-in 3005 df-ss 3012 df-pw 3431 df-sn 3452 df-pr 3453 df-op 3455 df-br 3846 df-opab 3900 df-cnv 4446 |
This theorem is referenced by: cnvopab 4833 cnv0 4835 cnvdif 4838 dfrel2 4881 cnvcnvsn 4907 cnvresima 4920 dfco2 4930 cnviinm 4972 fcnvres 5194 dmtpos 6021 dftpos4 6028 tpostpos 6029 fisumcom2 10828 |
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