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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 4129 |
. 2
| |
| 2 | breq2 4129 |
. 2
| |
| 3 | breq2 4129 |
. 2
| |
| 4 | breq2 4129 |
. 2
| |
| 5 | 1le1 8890 |
. 2
| |
| 6 | nnre 9290 |
. . 3
| |
| 7 | recn 8302 |
. . . . . 6
| |
| 8 | 7 | addridd 8465 |
. . . . 5
|
| 9 | 8 | breq2d 4137 |
. . . 4
|
| 10 | 0lt1 8443 |
. . . . . . . 8
| |
| 11 | 0re 8316 |
. . . . . . . . 9
| |
| 12 | 1re 8315 |
. . . . . . . . 9
| |
| 13 | axltadd 8385 |
. . . . . . . . 9
| |
| 14 | 11, 12, 13 | mp3an12 1368 |
. . . . . . . 8
|
| 15 | 10, 14 | mpi 15 |
. . . . . . 7
|
| 16 | readdcl 8295 |
. . . . . . . . 9
| |
| 17 | 11, 16 | mpan2 429 |
. . . . . . . 8
|
| 18 | peano2re 8452 |
. . . . . . . 8
| |
| 19 | lttr 8389 |
. . . . . . . . 9
| |
| 20 | 12, 19 | mp3an3 1367 |
. . . . . . . 8
|
| 21 | 17, 18, 20 | syl2anc 415 |
. . . . . . 7
|
| 22 | 15, 21 | mpand 433 |
. . . . . 6
|
| 23 | 22 | con3d 640 |
. . . . 5
|
| 24 | lenlt 8391 |
. . . . . 6
| |
| 25 | 12, 17, 24 | sylancr 418 |
. . . . 5
|
| 26 | lenlt 8391 |
. . . . . 6
| |
| 27 | 12, 18, 26 | sylancr 418 |
. . . . 5
|
| 28 | 23, 25, 27 | 3imtr4d 203 |
. . . 4
|
| 29 | 9, 28 | sylbird 170 |
. . 3
|
| 30 | 6, 29 | syl 14 |
. 2
|
| 31 | 1, 2, 3, 4, 5, 30 | nnind 9299 |
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 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4244 ax-pow 4306 ax-pr 4341 ax-un 4573 ax-setind 4679 ax-cnex 8260 ax-resscn 8261 ax-1re 8263 ax-addrcl 8266 ax-0lt1 8275 ax-0id 8277 ax-rnegex 8278 ax-pre-ltirr 8281 ax-pre-lttrn 8283 ax-pre-ltadd 8285 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3687 df-sn 3711 df-pr 3712 df-op 3714 df-uni 3931 df-int 3966 df-br 4126 df-opab 4188 df-xp 4775 df-cnv 4777 df-iota 5332 df-fv 5380 df-ov 6078 df-pnf 8352 df-mnf 8353 df-xr 8354 df-ltxr 8355 df-le 8356 df-inn 9284 |
| This theorem is referenced by: nnle1eq1 9307 nngt0 9308 nnnlt1 9309 nnrecgt0 9321 nnge1d 9326 elnnnn0c 9587 elnnz1 9646 zltp1le 9678 nn0ledivnn 10147 elfz1b 10475 fzo1fzo0n0 10573 elfzom1elp1fzo 10598 fzo0sn0fzo1 10617 nnlesq 11058 faclbnd 11157 faclbnd3 11159 len0nnbi 11317 fstwrdne0 11322 cvgratz 12277 coprmgcdb 12844 isprm3 12874 pw2dvds 12922 pockthg 13114 ballotfilem2 13206 oddennn 13261 gausslemma2dlem1a 16091 |
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