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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 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | imnan 679 | . . 3 | |
2 | 1 | albii 1446 | . 2 |
3 | df-ral 2421 | . 2 | |
4 | sbn 1925 | . . . 4 | |
5 | 4 | albii 1446 | . . 3 |
6 | nfv 1508 | . . . 4 | |
7 | 6 | sb8 1828 | . . 3 |
8 | eq0 3381 | . . . 4 | |
9 | df-rab 2425 | . . . . . . . 8 | |
10 | 9 | eleq2i 2206 | . . . . . . 7 |
11 | df-clab 2126 | . . . . . . 7 | |
12 | 10, 11 | bitri 183 | . . . . . 6 |
13 | 12 | notbii 657 | . . . . 5 |
14 | 13 | albii 1446 | . . . 4 |
15 | 8, 14 | bitri 183 | . . 3 |
16 | 5, 7, 15 | 3bitr4ri 212 | . 2 |
17 | 2, 3, 16 | 3bitr4ri 212 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wb 104 wal 1329 wceq 1331 wcel 1480 wsb 1735 cab 2125 wral 2416 crab 2420 c0 3363 |
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 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 |
This theorem depends on definitions: df-bi 116 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-rab 2425 df-v 2688 df-dif 3073 df-nul 3364 |
This theorem is referenced by: rabnc 3395 rabrsndc 3591 exmidsssnc 4126 ssfilem 6769 diffitest 6781 ssfirab 6822 ctssexmid 7024 exmidonfinlem 7049 iooidg 9692 icc0r 9709 fznlem 9821 ioo0 10037 ico0 10039 ioc0 10040 phiprmpw 11898 hashgcdeq 11904 unennn 11910 znnen 11911 |
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