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Mirrors > Home > ILE Home > Th. List > djudm | Unicode version |
Description: The domain of the "domain-disjoint-union" is the disjoint union of the domains. Remark: its range is the (standard) union of the ranges. (Contributed by BJ, 10-Jul-2022.) |
Ref | Expression |
---|---|
djudm |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-djud 7095 |
. . 3
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2 | 1 | dmeqi 4823 |
. 2
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3 | dmun 4829 |
. 2
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4 | dmco 5132 |
. . . . 5
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5 | imacnvcnv 5088 |
. . . . 5
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6 | resima 4935 |
. . . . . 6
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7 | df-ima 4635 |
. . . . . 6
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8 | 6, 7 | eqtri 2198 |
. . . . 5
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9 | 4, 5, 8 | 3eqtri 2202 |
. . . 4
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10 | dmco 5132 |
. . . . 5
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11 | imacnvcnv 5088 |
. . . . 5
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12 | resima 4935 |
. . . . . 6
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13 | df-ima 4635 |
. . . . . 6
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14 | 12, 13 | eqtri 2198 |
. . . . 5
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15 | 10, 11, 14 | 3eqtri 2202 |
. . . 4
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16 | 9, 15 | uneq12i 3287 |
. . 3
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17 | djuunr 7058 |
. . 3
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18 | 16, 17 | eqtri 2198 |
. 2
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19 | 2, 3, 18 | 3eqtri 2202 |
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-in1 614 ax-in2 615 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-13 2150 ax-14 2151 ax-ext 2159 ax-sep 4118 ax-nul 4126 ax-pow 4171 ax-pr 4205 ax-un 4429 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-nf 1461 df-sb 1763 df-eu 2029 df-mo 2030 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ral 2460 df-rex 2461 df-v 2739 df-sbc 2963 df-dif 3131 df-un 3133 df-in 3135 df-ss 3142 df-nul 3423 df-pw 3576 df-sn 3597 df-pr 3598 df-op 3600 df-uni 3808 df-br 4001 df-opab 4062 df-mpt 4063 df-tr 4099 df-id 4289 df-iord 4362 df-on 4364 df-suc 4367 df-xp 4628 df-rel 4629 df-cnv 4630 df-co 4631 df-dm 4632 df-rn 4633 df-res 4634 df-ima 4635 df-iota 5173 df-fun 5213 df-fn 5214 df-f 5215 df-f1 5216 df-fo 5217 df-f1o 5218 df-fv 5219 df-1st 6134 df-2nd 6135 df-1o 6410 df-dju 7030 df-inl 7039 df-inr 7040 df-djud 7095 |
This theorem is referenced by: (None) |
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