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Mirrors > Home > ILE Home > Th. List > imaiun | Unicode version |
Description: The image of an indexed union is the indexed union of the images. (Contributed by Mario Carneiro, 18-Jun-2014.) |
Ref | Expression |
---|---|
imaiun |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rexcom4 2783 |
. . . 4
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2 | vex 2763 |
. . . . . 6
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3 | 2 | elima3 5013 |
. . . . 5
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4 | 3 | rexbii 2501 |
. . . 4
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5 | eliun 3917 |
. . . . . . 7
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6 | 5 | anbi1i 458 |
. . . . . 6
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7 | r19.41v 2650 |
. . . . . 6
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8 | 6, 7 | bitr4i 187 |
. . . . 5
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9 | 8 | exbii 1616 |
. . . 4
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10 | 1, 4, 9 | 3bitr4ri 213 |
. . 3
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11 | 2 | elima3 5013 |
. . 3
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12 | eliun 3917 |
. . 3
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13 | 10, 11, 12 | 3bitr4i 212 |
. 2
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14 | 13 | eqriv 2190 |
1
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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 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-14 2167 ax-ext 2175 ax-sep 4148 ax-pow 4204 ax-pr 4239 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-v 2762 df-un 3158 df-in 3160 df-ss 3167 df-pw 3604 df-sn 3625 df-pr 3626 df-op 3628 df-iun 3915 df-br 4031 df-opab 4092 df-xp 4666 df-cnv 4668 df-dm 4670 df-rn 4671 df-res 4672 df-ima 4673 |
This theorem is referenced by: imauni 5805 uniqs 6649 |
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