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Mirrors > Home > ILE Home > Th. List > rabeq0 | Unicode version |
Description: Condition for a restricted class abstraction to be empty. (Contributed by Jeff Madsen, 7-Jun-2010.) |
Ref | Expression |
---|---|
rabeq0 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | imnan 680 |
. . 3
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2 | 1 | albii 1447 |
. 2
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3 | df-ral 2422 |
. 2
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4 | sbn 1926 |
. . . 4
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5 | 4 | albii 1447 |
. . 3
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6 | nfv 1509 |
. . . 4
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7 | 6 | sb8 1829 |
. . 3
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8 | eq0 3386 |
. . . 4
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9 | df-rab 2426 |
. . . . . . . 8
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10 | 9 | eleq2i 2207 |
. . . . . . 7
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11 | df-clab 2127 |
. . . . . . 7
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12 | 10, 11 | bitri 183 |
. . . . . 6
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13 | 12 | notbii 658 |
. . . . 5
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14 | 13 | albii 1447 |
. . . 4
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15 | 8, 14 | bitri 183 |
. . 3
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16 | 5, 7, 15 | 3bitr4ri 212 |
. 2
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17 | 2, 3, 16 | 3bitr4ri 212 |
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 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 |
This theorem depends on definitions: df-bi 116 df-tru 1335 df-fal 1338 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-ral 2422 df-rab 2426 df-v 2691 df-dif 3078 df-nul 3369 |
This theorem is referenced by: rabnc 3400 rabrsndc 3599 exmidsssnc 4134 ssfilem 6777 diffitest 6789 ssfirab 6830 ctssexmid 7032 exmidonfinlem 7066 iooidg 9722 icc0r 9739 fznlem 9852 ioo0 10068 ico0 10070 ioc0 10071 phiprmpw 11934 hashgcdeq 11940 unennn 11946 znnen 11947 |
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