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Mirrors > Home > MPE Home > Th. List > lelttr | Structured version Visualization version GIF version |
Description: Transitive law. (Contributed by NM, 23-May-1999.) |
Ref | Expression |
---|---|
lelttr | ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 ≤ 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | leloe 10003 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 ≤ 𝐵 ↔ (𝐴 < 𝐵 ∨ 𝐴 = 𝐵))) | |
2 | 1 | 3adant3 1074 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 ≤ 𝐵 ↔ (𝐴 < 𝐵 ∨ 𝐴 = 𝐵))) |
3 | lttr 9993 | . . . . 5 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 < 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶)) | |
4 | 3 | expd 451 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 < 𝐵 → (𝐵 < 𝐶 → 𝐴 < 𝐶))) |
5 | breq1 4586 | . . . . . 6 ⊢ (𝐴 = 𝐵 → (𝐴 < 𝐶 ↔ 𝐵 < 𝐶)) | |
6 | 5 | biimprd 237 | . . . . 5 ⊢ (𝐴 = 𝐵 → (𝐵 < 𝐶 → 𝐴 < 𝐶)) |
7 | 6 | a1i 11 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 = 𝐵 → (𝐵 < 𝐶 → 𝐴 < 𝐶))) |
8 | 4, 7 | jaod 394 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 < 𝐵 ∨ 𝐴 = 𝐵) → (𝐵 < 𝐶 → 𝐴 < 𝐶))) |
9 | 2, 8 | sylbid 229 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 ≤ 𝐵 → (𝐵 < 𝐶 → 𝐴 < 𝐶))) |
10 | 9 | impd 446 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 ≤ 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 195 ∨ wo 382 ∧ wa 383 ∧ w3a 1031 = wceq 1475 ∈ wcel 1977 class class class wbr 4583 ℝcr 9814 < clt 9953 ≤ cle 9954 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-resscn 9872 ax-pre-lttri 9889 ax-pre-lttrn 9890 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-br 4584 df-opab 4644 df-mpt 4645 df-id 4953 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 df-le 9959 |
This theorem is referenced by: letr 10010 lelttri 10043 lelttrd 10074 letrp1 10744 ltmul12a 10758 ledivp1 10804 supmul1 10869 bndndx 11168 uzind 11345 fnn0ind 11352 rpnnen1lem5 11694 rpnnen1lem5OLD 11700 xrinfmsslem 12010 elfzo0z 12377 nn0p1elfzo 12378 fzofzim 12382 elfzodifsumelfzo 12401 flge 12468 flflp1 12470 flltdivnn0lt 12496 modfzo0difsn 12604 fsequb 12636 expnlbnd2 12857 ccat2s1fvw 13267 swrdswrd 13312 swrdccatin12lem3 13341 repswswrd 13382 caubnd2 13945 caubnd 13946 mulcn2 14174 cn1lem 14176 rlimo1 14195 o1rlimmul 14197 climsqz 14219 climsqz2 14220 rlimsqzlem 14227 climsup 14248 caucvgrlem2 14253 iseralt 14263 cvgcmp 14389 cvgcmpce 14391 ruclem3 14801 ruclem12 14809 ltoddhalfle 14923 algcvgblem 15128 ncoprmlnprm 15274 pclem 15381 infpn2 15455 gsummoncoe1 19495 mp2pm2mplem4 20433 metss2lem 22126 ngptgp 22250 nghmcn 22359 iocopnst 22547 ovollb2lem 23063 ovolicc2lem4 23095 volcn 23180 ismbf3d 23227 dvcnvrelem1 23584 dvfsumrlim 23598 ulmcn 23957 mtest 23962 logdivlti 24170 isosctrlem1 24348 ftalem2 24600 chtub 24737 bposlem6 24814 gausslemma2dlem2 24892 chtppilim 24964 dchrisumlem3 24980 pntlem3 25098 nvnencycllem 26171 clwlkisclwwlklem2a 26313 vacn 26933 nmcvcn 26934 blocni 27044 chscllem2 27881 lnconi 28276 staddi 28489 stadd3i 28491 ltflcei 32567 poimirlem29 32608 geomcau 32725 heibor1lem 32778 bfplem2 32792 rrncmslem 32801 climinf 38673 leltletr 39940 iccpartigtl 39961 tgoldbach 40232 tgoldbachOLD 40239 zm1nn 40348 clwlkclwwlklem2a 41207 ply1mulgsumlem2 41969 difmodm1lt 42111 |
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