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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 8181 |
. 2
| |
| 5 | 1, 2, 3, 4 | mp3an 1350 |
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 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-13 2180 ax-14 2181 ax-ext 2189 ax-sep 4178 ax-pow 4234 ax-pr 4269 ax-un 4498 ax-setind 4603 ax-cnex 8051 ax-resscn 8052 ax-pre-lttrn 8074 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-fal 1379 df-nf 1485 df-sb 1787 df-eu 2058 df-mo 2059 df-clab 2194 df-cleq 2200 df-clel 2203 df-nfc 2339 df-ne 2379 df-nel 2474 df-ral 2491 df-rex 2492 df-rab 2495 df-v 2778 df-dif 3176 df-un 3178 df-in 3180 df-ss 3187 df-pw 3628 df-sn 3649 df-pr 3650 df-op 3652 df-uni 3865 df-br 4060 df-opab 4122 df-xp 4699 df-pnf 8144 df-mnf 8145 df-ltxr 8147 |
| This theorem is referenced by: 1lt3 9243 2lt4 9245 1lt4 9246 3lt5 9248 2lt5 9249 1lt5 9250 4lt6 9252 3lt6 9253 2lt6 9254 1lt6 9255 5lt7 9257 4lt7 9258 3lt7 9259 2lt7 9260 1lt7 9261 6lt8 9263 5lt8 9264 4lt8 9265 3lt8 9266 2lt8 9267 1lt8 9268 7lt9 9270 6lt9 9271 5lt9 9272 4lt9 9273 3lt9 9274 2lt9 9275 1lt9 9276 8lt10 9670 7lt10 9671 6lt10 9672 5lt10 9673 4lt10 9674 3lt10 9675 2lt10 9676 1lt10 9677 sincos2sgn 12192 cos12dec 12194 epos 12207 ene1 12211 eap1 12212 reeff1o 15360 pipos 15375 pigt3 15431 apdiff 16189 |
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