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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 8295 |
. 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 2204 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 ax-un 4536 ax-setind 4641 ax-cnex 8166 ax-resscn 8167 ax-pre-lttrn 8189 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ne 2404 df-nel 2499 df-ral 2516 df-rex 2517 df-rab 2520 df-v 2805 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-br 4094 df-opab 4156 df-xp 4737 df-pnf 8258 df-mnf 8259 df-ltxr 8261 |
| This theorem is referenced by: 1lt3 9357 2lt4 9359 1lt4 9360 3lt5 9362 2lt5 9363 1lt5 9364 4lt6 9366 3lt6 9367 2lt6 9368 1lt6 9369 5lt7 9371 4lt7 9372 3lt7 9373 2lt7 9374 1lt7 9375 6lt8 9377 5lt8 9378 4lt8 9379 3lt8 9380 2lt8 9381 1lt8 9382 7lt9 9384 6lt9 9385 5lt9 9386 4lt9 9387 3lt9 9388 2lt9 9389 1lt9 9390 8lt10 9786 7lt10 9787 6lt10 9788 5lt10 9789 4lt10 9790 3lt10 9791 2lt10 9792 1lt10 9793 sincos2sgn 12390 cos12dec 12392 epos 12405 ene1 12409 eap1 12410 reeff1o 15567 pipos 15582 pigt3 15638 apdiff 16763 |
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