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| Mirrors > Home > ILE Home > Th. List > nnne0 | Unicode version | ||
| Description: A positive integer is nonzero. (Contributed by NM, 27-Sep-1999.) |
| Ref | Expression |
|---|---|
| nnne0 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0nnn 9148 |
. . 3
| |
| 2 | eleq1 2292 |
. . 3
| |
| 3 | 1, 2 | mtbiri 679 |
. 2
|
| 4 | 3 | necon2ai 2454 |
1
|
| 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 106 ax-ia2 107 ax-ia3 108 ax-in1 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4202 ax-pow 4258 ax-pr 4293 ax-un 4524 ax-setind 4629 ax-cnex 8101 ax-resscn 8102 ax-1re 8104 ax-addrcl 8107 ax-0lt1 8116 ax-0id 8118 ax-rnegex 8119 ax-pre-ltirr 8122 ax-pre-lttrn 8124 ax-pre-ltadd 8126 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-nel 2496 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2801 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-int 3924 df-br 4084 df-opab 4146 df-xp 4725 df-cnv 4727 df-iota 5278 df-fv 5326 df-ov 6010 df-pnf 8194 df-mnf 8195 df-xr 8196 df-ltxr 8197 df-le 8198 df-inn 9122 |
| This theorem is referenced by: nnne0d 9166 divfnzn 9828 qreccl 9849 fzo1fzo0n0 10395 expnnval 10776 expnegap0 10781 hashnncl 11029 ef0lem 12187 dvdsval3 12318 nndivdvds 12323 modmulconst 12350 dvdsdivcl 12377 divalg2 12453 ndvdssub 12457 nndvdslegcd 12502 divgcdz 12508 divgcdnn 12512 gcdzeq 12559 eucalgf 12593 eucalginv 12594 lcmgcdlem 12615 qredeu 12635 cncongr1 12641 cncongr2 12642 divnumden 12734 divdenle 12735 phimullem 12763 hashgcdlem 12776 phisum 12779 prm23lt5 12802 pythagtriplem8 12811 pythagtriplem9 12812 pceu 12834 pccl 12838 pcdiv 12841 pcqcl 12845 pcdvds 12854 pcndvds 12856 pcndvds2 12858 pceq0 12861 pcz 12871 pcmpt 12882 fldivp1 12887 pcfac 12889 ennnfonelemjn 12989 mulgnn 13679 mulgnegnn 13685 znf1o 14631 znfi 14635 znhash 14636 znidomb 14638 znrrg 14640 dvexp2 15402 lgsval4a 15717 lgsabs1 15734 lgssq2 15736 |
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