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| Mirrors > Home > ILE Home > Th. List > p1le | Unicode version | ||
| Description: A transitive property of plus 1 and 'less than or equal'. (Contributed by NM, 16-Aug-2005.) |
| Ref | Expression |
|---|---|
| p1le |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lep1 8992 |
. . . 4
| |
| 2 | 1 | adantr 276 |
. . 3
|
| 3 | peano2re 8282 |
. . . . 5
| |
| 4 | 3 | ancli 323 |
. . . 4
|
| 5 | letr 8229 |
. . . . 5
| |
| 6 | 5 | 3expa 1227 |
. . . 4
|
| 7 | 4, 6 | sylan 283 |
. . 3
|
| 8 | 2, 7 | mpand 429 |
. 2
|
| 9 | 8 | 3impia 1224 |
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 8090 ax-resscn 8091 ax-1cn 8092 ax-1re 8093 ax-icn 8094 ax-addcl 8095 ax-addrcl 8096 ax-mulcl 8097 ax-addcom 8099 ax-addass 8101 ax-i2m1 8104 ax-0lt1 8105 ax-0id 8107 ax-rnegex 8108 ax-pre-ltirr 8111 ax-pre-ltwlin 8112 ax-pre-lttrn 8113 ax-pre-ltadd 8115 |
| 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-br 4084 df-opab 4146 df-xp 4725 df-cnv 4727 df-iota 5278 df-fv 5326 df-ov 6004 df-pnf 8183 df-mnf 8184 df-xr 8185 df-ltxr 8186 df-le 8187 |
| This theorem is referenced by: fzind 9562 |
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