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Mirrors > Home > ILE Home > Th. List > rexuz2 | Unicode version |
Description: Restricted existential quantification in an upper set of integers. (Contributed by NM, 9-Sep-2005.) |
Ref | Expression |
---|---|
rexuz2 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eluz2 8758 |
. . . . . 6
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2 | df-3an 922 |
. . . . . 6
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3 | 1, 2 | bitri 182 |
. . . . 5
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4 | 3 | anbi1i 446 |
. . . 4
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5 | anass 393 |
. . . . 5
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6 | anass 393 |
. . . . . 6
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7 | an12 526 |
. . . . . 6
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8 | 6, 7 | bitri 182 |
. . . . 5
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9 | 5, 8 | bitri 182 |
. . . 4
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10 | 4, 9 | bitri 182 |
. . 3
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11 | 10 | rexbii2 2382 |
. 2
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12 | r19.42v 2516 |
. 2
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13 | 11, 12 | bitri 182 |
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 2065 ax-sep 3916 ax-pow 3968 ax-pr 3992 ax-cnex 7181 ax-resscn 7182 |
This theorem depends on definitions: df-bi 115 df-3or 921 df-3an 922 df-tru 1288 df-nf 1391 df-sb 1688 df-eu 1946 df-mo 1947 df-clab 2070 df-cleq 2076 df-clel 2079 df-nfc 2212 df-ral 2358 df-rex 2359 df-rab 2362 df-v 2612 df-sbc 2825 df-un 2986 df-in 2988 df-ss 2995 df-pw 3402 df-sn 3422 df-pr 3423 df-op 3425 df-uni 3622 df-br 3806 df-opab 3860 df-mpt 3861 df-id 4076 df-xp 4397 df-rel 4398 df-cnv 4399 df-co 4400 df-dm 4401 df-rn 4402 df-res 4403 df-ima 4404 df-iota 4917 df-fun 4954 df-fn 4955 df-f 4956 df-fv 4960 df-ov 5566 df-neg 7401 df-z 8485 df-uz 8753 |
This theorem is referenced by: 2rexuz 8803 |
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