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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 9229 |
. . 3
| |
| 2 | eleq1 2294 |
. . 3
| |
| 3 | 1, 2 | mtbiri 682 |
. 2
|
| 4 | 3 | necon2ai 2457 |
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 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 ax-un 4536 ax-setind 4641 ax-cnex 8183 ax-resscn 8184 ax-1re 8186 ax-addrcl 8189 ax-0lt1 8198 ax-0id 8200 ax-rnegex 8201 ax-pre-ltirr 8204 ax-pre-lttrn 8206 ax-pre-ltadd 8208 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ne 2404 df-nel 2499 df-ral 2516 df-rex 2517 df-rab 2520 df-v 2805 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-int 3934 df-br 4094 df-opab 4156 df-xp 4737 df-cnv 4739 df-iota 5293 df-fv 5341 df-ov 6031 df-pnf 8275 df-mnf 8276 df-xr 8277 df-ltxr 8278 df-le 8279 df-inn 9203 |
| This theorem is referenced by: nnne0d 9247 divfnzn 9916 qreccl 9937 fzo1fzo0n0 10485 expnnval 10867 expnegap0 10872 hashnncl 11120 ef0lem 12301 dvdsval3 12432 nndivdvds 12437 modmulconst 12464 dvdsdivcl 12491 divalg2 12567 ndvdssub 12571 nndvdslegcd 12616 divgcdz 12622 divgcdnn 12626 gcdzeq 12673 eucalgf 12707 eucalginv 12708 lcmgcdlem 12729 qredeu 12749 cncongr1 12755 cncongr2 12756 divnumden 12848 divdenle 12849 phimullem 12877 hashgcdlem 12890 phisum 12893 prm23lt5 12916 pythagtriplem8 12925 pythagtriplem9 12926 pceu 12948 pccl 12952 pcdiv 12955 pcqcl 12959 pcdvds 12968 pcndvds 12970 pcndvds2 12972 pceq0 12975 pcz 12985 pcmpt 12996 fldivp1 13001 pcfac 13003 ennnfonelemjn 13103 mulgnn 13793 mulgnegnn 13799 znf1o 14747 znfi 14751 znhash 14752 znidomb 14754 znrrg 14756 dvexp2 15523 pellexlem1 15791 lgsval4a 15841 lgsabs1 15858 lgssq2 15860 |
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