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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 8363 |
. 2
| |
| 5 | 1, 2, 3, 4 | mp3an 1374 |
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 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4233 ax-pow 4292 ax-pr 4327 ax-un 4559 ax-setind 4664 ax-cnex 8234 ax-resscn 8235 ax-pre-lttrn 8257 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-nel 2510 df-ral 2527 df-rex 2528 df-rab 2531 df-v 2817 df-dif 3216 df-un 3218 df-in 3220 df-ss 3227 df-pw 3676 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-br 4115 df-opab 4177 df-xp 4760 df-pnf 8326 df-mnf 8327 df-ltxr 8329 |
| This theorem is referenced by: 1lt3 9426 2lt4 9428 1lt4 9429 3lt5 9431 2lt5 9432 1lt5 9433 4lt6 9435 3lt6 9436 2lt6 9437 1lt6 9438 5lt7 9440 4lt7 9441 3lt7 9442 2lt7 9443 1lt7 9444 6lt8 9446 5lt8 9447 4lt8 9448 3lt8 9449 2lt8 9450 1lt8 9451 7lt9 9453 6lt9 9454 5lt9 9455 4lt9 9456 3lt9 9457 2lt9 9458 1lt9 9459 8lt10 9858 7lt10 9859 6lt10 9860 5lt10 9861 4lt10 9862 3lt10 9863 2lt10 9864 1lt10 9865 sincos2sgn 12477 cos12dec 12479 epos 12492 ene1 12496 eap1 12497 reeff1o 15764 pipos 15779 pigt3 15835 apdiff 16958 |
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