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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 8145 |
. 2
| |
| 5 | 1, 2, 3, 4 | mp3an 1349 |
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 615 ax-in2 616 ax-io 710 ax-5 1469 ax-7 1470 ax-gen 1471 ax-ie1 1515 ax-ie2 1516 ax-8 1526 ax-10 1527 ax-11 1528 ax-i12 1529 ax-bndl 1531 ax-4 1532 ax-17 1548 ax-i9 1552 ax-ial 1556 ax-i5r 1557 ax-13 2177 ax-14 2178 ax-ext 2186 ax-sep 4161 ax-pow 4217 ax-pr 4252 ax-un 4479 ax-setind 4584 ax-cnex 8015 ax-resscn 8016 ax-pre-lttrn 8038 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1375 df-fal 1378 df-nf 1483 df-sb 1785 df-eu 2056 df-mo 2057 df-clab 2191 df-cleq 2197 df-clel 2200 df-nfc 2336 df-ne 2376 df-nel 2471 df-ral 2488 df-rex 2489 df-rab 2492 df-v 2773 df-dif 3167 df-un 3169 df-in 3171 df-ss 3178 df-pw 3617 df-sn 3638 df-pr 3639 df-op 3641 df-uni 3850 df-br 4044 df-opab 4105 df-xp 4680 df-pnf 8108 df-mnf 8109 df-ltxr 8111 |
| This theorem is referenced by: 1lt3 9207 2lt4 9209 1lt4 9210 3lt5 9212 2lt5 9213 1lt5 9214 4lt6 9216 3lt6 9217 2lt6 9218 1lt6 9219 5lt7 9221 4lt7 9222 3lt7 9223 2lt7 9224 1lt7 9225 6lt8 9227 5lt8 9228 4lt8 9229 3lt8 9230 2lt8 9231 1lt8 9232 7lt9 9234 6lt9 9235 5lt9 9236 4lt9 9237 3lt9 9238 2lt9 9239 1lt9 9240 8lt10 9634 7lt10 9635 6lt10 9636 5lt10 9637 4lt10 9638 3lt10 9639 2lt10 9640 1lt10 9641 sincos2sgn 12048 cos12dec 12050 epos 12063 ene1 12067 eap1 12068 reeff1o 15216 pipos 15231 pigt3 15287 apdiff 15949 |
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