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Mirrors > Home > ILE Home > Th. List > cnvcnvsn | Unicode version |
Description: Double converse of a
singleton of an ordered pair. (Unlike cnvsn 4823,
this does not need any sethood assumptions on ![]() ![]() |
Ref | Expression |
---|---|
cnvcnvsn |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | relcnv 4723 |
. 2
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2 | relcnv 4723 |
. 2
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3 | vex 2604 |
. . . 4
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4 | vex 2604 |
. . . 4
![]() ![]() ![]() ![]() | |
5 | 3, 4 | opelcnv 4535 |
. . 3
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6 | ancom 262 |
. . . . . 6
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
7 | 3, 4 | opth 3992 |
. . . . . 6
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8 | 4, 3 | opth 3992 |
. . . . . 6
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9 | 6, 7, 8 | 3bitr4i 210 |
. . . . 5
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10 | 3, 4 | opex 3984 |
. . . . . 6
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11 | 10 | elsn 3414 |
. . . . 5
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12 | 4, 3 | opex 3984 |
. . . . . 6
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13 | 12 | elsn 3414 |
. . . . 5
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14 | 9, 11, 13 | 3bitr4i 210 |
. . . 4
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15 | 4, 3 | opelcnv 4535 |
. . . 4
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16 | 3, 4 | opelcnv 4535 |
. . . 4
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17 | 14, 15, 16 | 3bitr4i 210 |
. . 3
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18 | 5, 17 | bitri 182 |
. 2
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19 | 1, 2, 18 | eqrelriiv 4452 |
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 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-14 1445 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-sep 3896 ax-pow 3948 ax-pr 3964 |
This theorem depends on definitions: df-bi 115 df-3an 921 df-tru 1287 df-nf 1390 df-sb 1686 df-eu 1944 df-mo 1945 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-ral 2353 df-rex 2354 df-v 2603 df-un 2977 df-in 2979 df-ss 2986 df-pw 3384 df-sn 3404 df-pr 3405 df-op 3407 df-br 3786 df-opab 3840 df-xp 4369 df-rel 4370 df-cnv 4371 |
This theorem is referenced by: rnsnopg 4819 cnvsn 4823 |
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