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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 8146 |
. 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 1470 ax-7 1471 ax-gen 1472 ax-ie1 1516 ax-ie2 1517 ax-8 1527 ax-10 1528 ax-11 1529 ax-i12 1530 ax-bndl 1532 ax-4 1533 ax-17 1549 ax-i9 1553 ax-ial 1557 ax-i5r 1558 ax-13 2178 ax-14 2179 ax-ext 2187 ax-sep 4162 ax-pow 4218 ax-pr 4253 ax-un 4480 ax-setind 4585 ax-cnex 8016 ax-resscn 8017 ax-pre-lttrn 8039 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-fal 1379 df-nf 1484 df-sb 1786 df-eu 2057 df-mo 2058 df-clab 2192 df-cleq 2198 df-clel 2201 df-nfc 2337 df-ne 2377 df-nel 2472 df-ral 2489 df-rex 2490 df-rab 2493 df-v 2774 df-dif 3168 df-un 3170 df-in 3172 df-ss 3179 df-pw 3618 df-sn 3639 df-pr 3640 df-op 3642 df-uni 3851 df-br 4045 df-opab 4106 df-xp 4681 df-pnf 8109 df-mnf 8110 df-ltxr 8112 |
| This theorem is referenced by: 1lt3 9208 2lt4 9210 1lt4 9211 3lt5 9213 2lt5 9214 1lt5 9215 4lt6 9217 3lt6 9218 2lt6 9219 1lt6 9220 5lt7 9222 4lt7 9223 3lt7 9224 2lt7 9225 1lt7 9226 6lt8 9228 5lt8 9229 4lt8 9230 3lt8 9231 2lt8 9232 1lt8 9233 7lt9 9235 6lt9 9236 5lt9 9237 4lt9 9238 3lt9 9239 2lt9 9240 1lt9 9241 8lt10 9635 7lt10 9636 6lt10 9637 5lt10 9638 4lt10 9639 3lt10 9640 2lt10 9641 1lt10 9642 sincos2sgn 12077 cos12dec 12079 epos 12092 ene1 12096 eap1 12097 reeff1o 15245 pipos 15260 pigt3 15316 apdiff 15987 |
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