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Mirrors > Home > ILE Home > Th. List > elnn0 | Unicode version |
Description: Nonnegative integers expressed in terms of naturals and zero. (Contributed by Raph Levien, 10-Dec-2002.) |
Ref | Expression |
---|---|
elnn0 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-n0 8289 | . . 3 | |
2 | 1 | eleq2i 2145 | . 2 |
3 | elun 3113 | . 2 | |
4 | c0ex 7113 | . . . 4 | |
5 | 4 | elsn2 3428 | . . 3 |
6 | 5 | orbi2i 711 | . 2 |
7 | 2, 3, 6 | 3bitri 204 | 1 |
Colors of variables: wff set class |
Syntax hints: wb 103 wo 661 wceq 1284 wcel 1433 cun 2971 csn 3398 cc0 6981 cn 8039 cn0 8288 |
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 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-1cn 7069 ax-icn 7071 ax-addcl 7072 ax-mulcl 7074 ax-i2m1 7081 |
This theorem depends on definitions: df-bi 115 df-tru 1287 df-nf 1390 df-sb 1686 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-v 2603 df-un 2977 df-sn 3404 df-n0 8289 |
This theorem is referenced by: 0nn0 8303 nn0ge0 8313 nnnn0addcl 8318 nnm1nn0 8329 elnnnn0b 8332 elnn0z 8364 elznn0nn 8365 elznn0 8366 elznn 8367 nn0ind-raph 8464 nn0ledivnn 8838 expp1 9483 expnegap0 9484 expcllem 9487 facp1 9657 faclbnd 9668 faclbnd3 9670 bcn1 9685 ibcval5 9690 nn0enne 10302 nn0o1gt2 10305 dfgcd2 10403 mulgcd 10405 eucalgf 10437 eucalginv 10438 prmdvdsexpr 10529 rpexp1i 10533 |
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