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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 10719 | . 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 2114 class class class wbr 5068 ℝcr 10538 < clt 10677 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 ax-un 7463 ax-resscn 10596 ax-pre-lttrn 10614 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ne 3019 df-nel 3126 df-ral 3145 df-rex 3146 df-rab 3149 df-v 3498 df-sbc 3775 df-csb 3886 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-pw 4543 df-sn 4570 df-pr 4572 df-op 4576 df-uni 4841 df-br 5069 df-opab 5131 df-mpt 5149 df-id 5462 df-xp 5563 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-rn 5568 df-res 5569 df-ima 5570 df-iota 6316 df-fun 6359 df-fn 6360 df-f 6361 df-f1 6362 df-fo 6363 df-f1o 6364 df-fv 6365 df-er 8291 df-en 8512 df-dom 8513 df-sdom 8514 df-pnf 10679 df-mnf 10680 df-ltxr 10682 |
This theorem is referenced by: 1lt3 11813 2lt4 11815 1lt4 11816 3lt5 11818 2lt5 11819 1lt5 11820 4lt6 11822 3lt6 11823 2lt6 11824 1lt6 11825 5lt7 11827 4lt7 11828 3lt7 11829 2lt7 11830 1lt7 11831 6lt8 11833 5lt8 11834 4lt8 11835 3lt8 11836 2lt8 11837 1lt8 11838 7lt9 11840 6lt9 11841 5lt9 11842 4lt9 11843 3lt9 11844 2lt9 11845 1lt9 11846 8lt10 12233 7lt10 12234 6lt10 12235 5lt10 12236 4lt10 12237 3lt10 12238 2lt10 12239 1lt10 12240 sincos2sgn 15549 epos 15562 ene1 15565 dvdslelem 15661 oppcbas 16990 sralem 19951 zlmlem 20666 psgnodpmr 20736 tnglem 23251 xrhmph 23553 vitalilem4 24214 pipos 25048 logneg 25173 asin1 25474 reasinsin 25476 atan1 25508 log2le1 25530 bposlem8 25869 bposlem9 25870 chebbnd1lem2 26048 chebbnd1lem3 26049 chebbnd1 26050 mulog2sumlem2 26113 pntibndlem1 26167 pntlemb 26175 pntlemk 26184 ttglem 26664 cchhllem 26675 axlowdimlem16 26745 dp2ltc 30565 sgnnbi 31805 sgnpbi 31806 signswch 31833 hgt750lem 31924 hgt750lem2 31925 logi 32968 cnndvlem1 33878 bj-minftyccb 34509 bj-pinftynminfty 34511 asindmre 34979 fdc 35022 sn-0ne2 39243 fourierdlem94 42492 fourierdlem102 42500 fourierdlem103 42501 fourierdlem104 42502 fourierdlem112 42510 fourierdlem113 42511 fourierdlem114 42512 fouriersw 42523 etransclem23 42549 |
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