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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 8405 |
. 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 4251 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-setind 4686 ax-cnex 8276 ax-resscn 8277 ax-pre-lttrn 8299 |
| 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 4132 df-opab 4194 df-xp 4782 df-pnf 8368 df-mnf 8369 df-ltxr 8371 |
| This theorem is used by: 1lt3 9487 2lt4 9489 1lt4 9490 3lt5 9492 2lt5 9493 1lt5 9494 4lt6 9496 3lt6 9497 2lt6 9498 1lt6 9499 5lt7 9501 4lt7 9502 3lt7 9503 2lt7 9504 1lt7 9505 6lt8 9507 5lt8 9508 4lt8 9509 3lt8 9510 2lt8 9511 1lt8 9512 7lt9 9514 6lt9 9515 5lt9 9516 4lt9 9517 3lt9 9518 2lt9 9519 1lt9 9520 8lt10 9924 7lt10 9925 6lt10 9926 5lt10 9927 4lt10 9928 3lt10 9929 2lt10 9930 1lt10 9931 sincos2sgn 12558 cos12dec 12560 epos 12573 ene1 12577 eap1 12578 reeff1o 15999 pipos 16015 pigt3 16071 bposlem8 16318 bposlem9 16319 apdiff 17304 |
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