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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 4531 |
. . . 4
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2 | eluni2 3605 |
. . . . . . 7
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3 | 2 | anbi2i 444 |
. . . . . 6
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4 | r19.42v 2511 |
. . . . . 6
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5 | 3, 4 | bitr4i 185 |
. . . . 5
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6 | 5 | 2exbii 1537 |
. . . 4
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7 | elcnv2 4531 |
. . . . . 6
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8 | 7 | rexbii 2373 |
. . . . 5
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9 | rexcom4 2622 |
. . . . 5
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10 | rexcom4 2622 |
. . . . . 6
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11 | 10 | exbii 1536 |
. . . . 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 3682 |
. . 3
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15 | 13, 14 | bitr4i 185 |
. 2
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16 | 15 | eqriv 2078 |
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-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-uni 3602 df-iun 3680 df-br 3786 df-opab 3840 df-cnv 4371 |
This theorem is referenced by: funcnvuni 4988 |
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