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Mirrors > Home > ILE Home > Th. List > nnge1 | Unicode version |
Description: A positive integer is one or greater. (Contributed by NM, 25-Aug-1999.) |
Ref | Expression |
---|---|
nnge1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | breq2 3933 | . 2 | |
2 | breq2 3933 | . 2 | |
3 | breq2 3933 | . 2 | |
4 | breq2 3933 | . 2 | |
5 | 1le1 8334 | . 2 | |
6 | nnre 8727 | . . 3 | |
7 | recn 7753 | . . . . . 6 | |
8 | 7 | addid1d 7911 | . . . . 5 |
9 | 8 | breq2d 3941 | . . . 4 |
10 | 0lt1 7889 | . . . . . . . 8 | |
11 | 0re 7766 | . . . . . . . . 9 | |
12 | 1re 7765 | . . . . . . . . 9 | |
13 | axltadd 7834 | . . . . . . . . 9 | |
14 | 11, 12, 13 | mp3an12 1305 | . . . . . . . 8 |
15 | 10, 14 | mpi 15 | . . . . . . 7 |
16 | readdcl 7746 | . . . . . . . . 9 | |
17 | 11, 16 | mpan2 421 | . . . . . . . 8 |
18 | peano2re 7898 | . . . . . . . 8 | |
19 | lttr 7838 | . . . . . . . . 9 | |
20 | 12, 19 | mp3an3 1304 | . . . . . . . 8 |
21 | 17, 18, 20 | syl2anc 408 | . . . . . . 7 |
22 | 15, 21 | mpand 425 | . . . . . 6 |
23 | 22 | con3d 620 | . . . . 5 |
24 | lenlt 7840 | . . . . . 6 | |
25 | 12, 17, 24 | sylancr 410 | . . . . 5 |
26 | lenlt 7840 | . . . . . 6 | |
27 | 12, 18, 26 | sylancr 410 | . . . . 5 |
28 | 23, 25, 27 | 3imtr4d 202 | . . . 4 |
29 | 9, 28 | sylbird 169 | . . 3 |
30 | 6, 29 | syl 14 | . 2 |
31 | 1, 2, 3, 4, 5, 30 | nnind 8736 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wb 104 wcel 1480 class class class wbr 3929 (class class class)co 5774 cr 7619 cc0 7620 c1 7621 caddc 7623 clt 7800 cle 7801 cn 8720 |
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-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 ax-un 4355 ax-setind 4452 ax-cnex 7711 ax-resscn 7712 ax-1re 7714 ax-addrcl 7717 ax-0lt1 7726 ax-0id 7728 ax-rnegex 7729 ax-pre-ltirr 7732 ax-pre-lttrn 7734 ax-pre-ltadd 7736 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ne 2309 df-nel 2404 df-ral 2421 df-rex 2422 df-rab 2425 df-v 2688 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-int 3772 df-br 3930 df-opab 3990 df-xp 4545 df-cnv 4547 df-iota 5088 df-fv 5131 df-ov 5777 df-pnf 7802 df-mnf 7803 df-xr 7804 df-ltxr 7805 df-le 7806 df-inn 8721 |
This theorem is referenced by: nnle1eq1 8744 nngt0 8745 nnnlt1 8746 nnrecgt0 8758 nnge1d 8763 elnnnn0c 9022 elnnz1 9077 zltp1le 9108 nn0ledivnn 9554 elfz1b 9870 fzo1fzo0n0 9960 elfzom1elp1fzo 9979 fzo0sn0fzo1 9998 nnlesq 10396 faclbnd 10487 faclbnd3 10489 cvgratz 11301 coprmgcdb 11769 isprm3 11799 pw2dvds 11844 oddennn 11905 |
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