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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 8347 |
. 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 2205 ax-14 2206 ax-ext 2214 ax-sep 4228 ax-pow 4287 ax-pr 4322 ax-un 4554 ax-setind 4659 ax-cnex 8218 ax-resscn 8219 ax-pre-lttrn 8241 |
| 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 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ne 2413 df-nel 2508 df-ral 2525 df-rex 2526 df-rab 2529 df-v 2815 df-dif 3213 df-un 3215 df-in 3217 df-ss 3224 df-pw 3671 df-sn 3695 df-pr 3696 df-op 3698 df-uni 3915 df-br 4110 df-opab 4172 df-xp 4755 df-pnf 8310 df-mnf 8311 df-ltxr 8313 |
| This theorem is referenced by: 1lt3 9409 2lt4 9411 1lt4 9412 3lt5 9414 2lt5 9415 1lt5 9416 4lt6 9418 3lt6 9419 2lt6 9420 1lt6 9421 5lt7 9423 4lt7 9424 3lt7 9425 2lt7 9426 1lt7 9427 6lt8 9429 5lt8 9430 4lt8 9431 3lt8 9432 2lt8 9433 1lt8 9434 7lt9 9436 6lt9 9437 5lt9 9438 4lt9 9439 3lt9 9440 2lt9 9441 1lt9 9442 8lt10 9840 7lt10 9841 6lt10 9842 5lt10 9843 4lt10 9844 3lt10 9845 2lt10 9846 1lt10 9847 sincos2sgn 12452 cos12dec 12454 epos 12467 ene1 12471 eap1 12472 reeff1o 15638 pipos 15653 pigt3 15709 apdiff 16832 |
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