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Mirrors > Home > ILE Home > Th. List > reupick | Unicode version |
Description: Restricted uniqueness "picks" a member of a subclass. (Contributed by NM, 21-Aug-1999.) |
Ref | Expression |
---|---|
reupick |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ssel 3151 |
. . 3
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2 | 1 | ad2antrr 488 |
. 2
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3 | df-rex 2461 |
. . . . . 6
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4 | df-reu 2462 |
. . . . . 6
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5 | 3, 4 | anbi12i 460 |
. . . . 5
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6 | 1 | ancrd 326 |
. . . . . . . . . . 11
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7 | 6 | anim1d 336 |
. . . . . . . . . 10
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8 | an32 562 |
. . . . . . . . . 10
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9 | 7, 8 | imbitrdi 161 |
. . . . . . . . 9
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10 | 9 | eximdv 1880 |
. . . . . . . 8
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11 | eupick 2105 |
. . . . . . . . 9
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12 | 11 | ex 115 |
. . . . . . . 8
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13 | 10, 12 | syl9 72 |
. . . . . . 7
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14 | 13 | com23 78 |
. . . . . 6
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15 | 14 | imp32 257 |
. . . . 5
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16 | 5, 15 | sylan2b 287 |
. . . 4
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17 | 16 | expcomd 1441 |
. . 3
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18 | 17 | imp 124 |
. 2
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19 | 2, 18 | impbid 129 |
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 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-ext 2159 |
This theorem depends on definitions: df-bi 117 df-nf 1461 df-sb 1763 df-eu 2029 df-mo 2030 df-clab 2164 df-cleq 2170 df-clel 2173 df-rex 2461 df-reu 2462 df-in 3137 df-ss 3144 |
This theorem is referenced by: supelti 7004 |
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