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Mirrors > Home > MPE Home > Th. List > lttri | Structured version Visualization version GIF version |
Description: 'Less than' is transitive. Theorem I.17 of [Apostol] p. 20. (Contributed by NM, 14-May-1999.) |
Ref | Expression |
---|---|
lt.1 | ⊢ 𝐴 ∈ ℝ |
lt.2 | ⊢ 𝐵 ∈ ℝ |
lt.3 | ⊢ 𝐶 ∈ ℝ |
Ref | Expression |
---|---|
lttri | ⊢ ((𝐴 < 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | lt.1 | . 2 ⊢ 𝐴 ∈ ℝ | |
2 | lt.2 | . 2 ⊢ 𝐵 ∈ ℝ | |
3 | lt.3 | . 2 ⊢ 𝐶 ∈ ℝ | |
4 | lttr 10711 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 < 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶)) | |
5 | 1, 2, 3, 4 | mp3an 1457 | 1 ⊢ ((𝐴 < 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 ∈ wcel 2110 class class class wbr 5058 ℝcr 10530 < clt 10669 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5195 ax-nul 5202 ax-pow 5258 ax-pr 5321 ax-un 7455 ax-resscn 10588 ax-pre-lttrn 10606 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4561 df-pr 4563 df-op 4567 df-uni 4832 df-br 5059 df-opab 5121 df-mpt 5139 df-id 5454 df-xp 5555 df-rel 5556 df-cnv 5557 df-co 5558 df-dm 5559 df-rn 5560 df-res 5561 df-ima 5562 df-iota 6308 df-fun 6351 df-fn 6352 df-f 6353 df-f1 6354 df-fo 6355 df-f1o 6356 df-fv 6357 df-er 8283 df-en 8504 df-dom 8505 df-sdom 8506 df-pnf 10671 df-mnf 10672 df-ltxr 10674 |
This theorem is referenced by: 1lt3 11804 2lt4 11806 1lt4 11807 3lt5 11809 2lt5 11810 1lt5 11811 4lt6 11813 3lt6 11814 2lt6 11815 1lt6 11816 5lt7 11818 4lt7 11819 3lt7 11820 2lt7 11821 1lt7 11822 6lt8 11824 5lt8 11825 4lt8 11826 3lt8 11827 2lt8 11828 1lt8 11829 7lt9 11831 6lt9 11832 5lt9 11833 4lt9 11834 3lt9 11835 2lt9 11836 1lt9 11837 8lt10 12224 7lt10 12225 6lt10 12226 5lt10 12227 4lt10 12228 3lt10 12229 2lt10 12230 1lt10 12231 sincos2sgn 15541 epos 15554 ene1 15557 dvdslelem 15653 oppcbas 16982 sralem 19943 zlmlem 20658 psgnodpmr 20728 tnglem 23243 xrhmph 23545 vitalilem4 24206 pipos 25040 logneg 25165 asin1 25466 reasinsin 25468 atan1 25500 log2le1 25522 bposlem8 25861 bposlem9 25862 chebbnd1lem2 26040 chebbnd1lem3 26041 chebbnd1 26042 mulog2sumlem2 26105 pntibndlem1 26159 pntlemb 26167 pntlemk 26176 ttglem 26656 cchhllem 26667 axlowdimlem16 26737 dp2ltc 30558 sgnnbi 31798 sgnpbi 31799 signswch 31826 hgt750lem 31917 hgt750lem2 31918 logi 32961 cnndvlem1 33871 bj-minftyccb 34501 bj-pinftynminfty 34503 asindmre 34971 fdc 35014 sn-0ne2 39229 fourierdlem94 42479 fourierdlem102 42487 fourierdlem103 42488 fourierdlem104 42489 fourierdlem112 42497 fourierdlem113 42498 fourierdlem114 42499 fouriersw 42510 etransclem23 42536 |
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