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Mirrors > Home > ILE Home > Th. List > eluni2 | Unicode version |
Description: Membership in class union. Restricted quantifier version. (Contributed by NM, 31-Aug-1999.) |
Ref | Expression |
---|---|
eluni2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | exancom 1587 | . 2 | |
2 | eluni 3739 | . 2 | |
3 | df-rex 2422 | . 2 | |
4 | 1, 2, 3 | 3bitr4i 211 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 103 wb 104 wex 1468 wcel 1480 wrex 2417 cuni 3736 |
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-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-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-rex 2422 df-v 2688 df-uni 3737 |
This theorem is referenced by: uni0b 3761 intssunim 3793 iuncom4 3820 inuni 4080 ssorduni 4403 unon 4427 cnvuni 4725 chfnrn 5531 isbasis3g 12213 eltg2b 12223 tgcl 12233 epttop 12259 txuni2 12425 |
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