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| Mirrors > Home > MPE Home > Th. List > zltp1le | Structured version Visualization version Unicode version | ||
| Description: Integer ordering relation. (Contributed by NM, 10-May-2004.) (Proof shortened by Mario Carneiro, 16-May-2014.) |
| Ref | Expression |
|---|---|
| zltp1le |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnge1 11046 |
. . . 4
| |
| 2 | 1 | a1i 11 |
. . 3
|
| 3 | znnsub 11423 |
. . 3
| |
| 4 | zre 11381 |
. . . 4
| |
| 5 | zre 11381 |
. . . 4
| |
| 6 | 1re 10039 |
. . . . 5
| |
| 7 | leaddsub2 10505 |
. . . . 5
| |
| 8 | 6, 7 | mp3an2 1412 |
. . . 4
|
| 9 | 4, 5, 8 | syl2an 494 |
. . 3
|
| 10 | 2, 3, 9 | 3imtr4d 283 |
. 2
|
| 11 | 4 | adantr 481 |
. . . 4
|
| 12 | 11 | ltp1d 10954 |
. . 3
|
| 13 | peano2re 10209 |
. . . . 5
| |
| 14 | 11, 13 | syl 17 |
. . . 4
|
| 15 | 5 | adantl 482 |
. . . 4
|
| 16 | ltletr 10129 |
. . . 4
| |
| 17 | 11, 14, 15, 16 | syl3anc 1326 |
. . 3
|
| 18 | 12, 17 | mpand 711 |
. 2
|
| 19 | 10, 18 | impbid 202 |
1
|
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