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Mirrors > Home > ILE Home > Th. List > cnvuni | Unicode version |
Description: The converse of a class union is the (indexed) union of the converses of its members. (Contributed by NM, 11-Aug-2004.) |
Ref | Expression |
---|---|
cnvuni |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elcnv2 4541 |
. . . 4
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2 | eluni2 3613 |
. . . . . . 7
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3 | 2 | anbi2i 445 |
. . . . . 6
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4 | r19.42v 2512 |
. . . . . 6
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5 | 3, 4 | bitr4i 185 |
. . . . 5
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6 | 5 | 2exbii 1538 |
. . . 4
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7 | elcnv2 4541 |
. . . . . 6
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8 | 7 | rexbii 2374 |
. . . . 5
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9 | rexcom4 2623 |
. . . . 5
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10 | rexcom4 2623 |
. . . . . 6
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11 | 10 | exbii 1537 |
. . . . 5
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12 | 8, 9, 11 | 3bitrri 205 |
. . . 4
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13 | 1, 6, 12 | 3bitri 204 |
. . 3
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14 | eliun 3690 |
. . 3
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15 | 13, 14 | bitr4i 185 |
. 2
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16 | 15 | eqriv 2079 |
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 663 ax-5 1377 ax-7 1378 ax-gen 1379 ax-ie1 1423 ax-ie2 1424 ax-8 1436 ax-10 1437 ax-11 1438 ax-i12 1439 ax-bndl 1440 ax-4 1441 ax-14 1446 ax-17 1460 ax-i9 1464 ax-ial 1468 ax-i5r 1469 ax-ext 2064 ax-sep 3904 ax-pow 3956 ax-pr 3972 |
This theorem depends on definitions: df-bi 115 df-3an 922 df-tru 1288 df-nf 1391 df-sb 1687 df-clab 2069 df-cleq 2075 df-clel 2078 df-nfc 2209 df-ral 2354 df-rex 2355 df-v 2604 df-un 2978 df-in 2980 df-ss 2987 df-pw 3392 df-sn 3412 df-pr 3413 df-op 3415 df-uni 3610 df-iun 3688 df-br 3794 df-opab 3848 df-cnv 4379 |
This theorem is referenced by: funcnvuni 4999 |
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