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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 8400 |
. 2
| |
| 5 | 1, 2, 3, 4 | mp3an 1378 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on 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 4249 ax-pow 4311 ax-pr 4346 ax-un 4578 ax-setind 4684 ax-cnex 8271 ax-resscn 8272 ax-pre-lttrn 8294 |
| This proof 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 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-opab 4193 df-xp 4780 df-pnf 8363 df-mnf 8364 df-ltxr 8366 |
| This theorem is used by: 1lt3 9481 2lt4 9483 1lt4 9484 3lt5 9486 2lt5 9487 1lt5 9488 4lt6 9490 3lt6 9491 2lt6 9492 1lt6 9493 5lt7 9495 4lt7 9496 3lt7 9497 2lt7 9498 1lt7 9499 6lt8 9501 5lt8 9502 4lt8 9503 3lt8 9504 2lt8 9505 1lt8 9506 7lt9 9508 6lt9 9509 5lt9 9510 4lt9 9511 3lt9 9512 2lt9 9513 1lt9 9514 8lt10 9918 7lt10 9919 6lt10 9920 5lt10 9921 4lt10 9922 3lt10 9923 2lt10 9924 1lt10 9925 sincos2sgn 12552 cos12dec 12554 epos 12567 ene1 12571 eap1 12572 reeff1o 15965 pipos 15981 pigt3 16037 bposlem8 16279 bposlem9 16280 apdiff 17264 |
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