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| Mirrors > Home > ILE Home > Th. List > lttri | Unicode version | ||
| Description: 'Less than' is transitive. Theorem I.17 of [Apostol] p. 20. (Contributed by NM, 14-May-1999.) |
| Ref | Expression |
|---|---|
| lt.1 |
|
| lt.2 |
|
| lt.3 |
|
| Ref | Expression |
|---|---|
| lttri |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lt.1 |
. 2
| |
| 2 | lt.2 |
. 2
| |
| 3 | lt.3 |
. 2
| |
| 4 | lttr 8231 |
. 2
| |
| 5 | 1, 2, 3, 4 | mp3an 1371 |
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 8101 ax-resscn 8102 ax-pre-lttrn 8124 |
| 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-pnf 8194 df-mnf 8195 df-ltxr 8197 |
| This theorem is referenced by: 1lt3 9293 2lt4 9295 1lt4 9296 3lt5 9298 2lt5 9299 1lt5 9300 4lt6 9302 3lt6 9303 2lt6 9304 1lt6 9305 5lt7 9307 4lt7 9308 3lt7 9309 2lt7 9310 1lt7 9311 6lt8 9313 5lt8 9314 4lt8 9315 3lt8 9316 2lt8 9317 1lt8 9318 7lt9 9320 6lt9 9321 5lt9 9322 4lt9 9323 3lt9 9324 2lt9 9325 1lt9 9326 8lt10 9720 7lt10 9721 6lt10 9722 5lt10 9723 4lt10 9724 3lt10 9725 2lt10 9726 1lt10 9727 sincos2sgn 12292 cos12dec 12294 epos 12307 ene1 12311 eap1 12312 reeff1o 15462 pipos 15477 pigt3 15533 apdiff 16476 |
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