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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 10992 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 ≤ 𝐵 ↔ (𝐴 < 𝐵 ∨ 𝐴 = 𝐵))) | |
2 | 1 | 3adant3 1130 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 ≤ 𝐵 ↔ (𝐴 < 𝐵 ∨ 𝐴 = 𝐵))) |
3 | lttr 10982 | . . . . 5 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 < 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶)) | |
4 | 3 | expd 415 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 < 𝐵 → (𝐵 < 𝐶 → 𝐴 < 𝐶))) |
5 | breq1 5073 | . . . . . 6 ⊢ (𝐴 = 𝐵 → (𝐴 < 𝐶 ↔ 𝐵 < 𝐶)) | |
6 | 5 | biimprd 247 | . . . . 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 855 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 < 𝐵 ∨ 𝐴 = 𝐵) → (𝐵 < 𝐶 → 𝐴 < 𝐶))) |
9 | 2, 8 | sylbid 239 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 ≤ 𝐵 → (𝐵 < 𝐶 → 𝐴 < 𝐶))) |
10 | 9 | impd 410 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 ≤ 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 ∨ wo 843 ∧ w3a 1085 = wceq 1539 ∈ wcel 2108 class class class wbr 5070 ℝcr 10801 < clt 10940 ≤ cle 10941 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-resscn 10859 ax-pre-lttri 10876 ax-pre-lttrn 10877 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-br 5071 df-opab 5133 df-mpt 5154 df-id 5480 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 |
This theorem is referenced by: letr 10999 lelttri 11032 lelttrd 11063 letrp1 11749 ltmul12a 11761 ledivp1 11807 supmul1 11874 bndndx 12162 uzind 12342 fnn0ind 12349 rpnnen1lem5 12650 xrinfmsslem 12971 elfzo0z 13357 nn0p1elfzo 13358 fzofzim 13362 elfzodifsumelfzo 13381 flge 13453 flflp1 13455 flltdivnn0lt 13481 modfzo0difsn 13591 fsequb 13623 expnlbnd2 13877 ccat2s1fvw 14277 ccat2s1fvwOLD 14278 swrdswrd 14346 pfxccatin12lem3 14373 repswswrd 14425 caubnd2 14997 caubnd 14998 mulcn2 15233 cn1lem 15235 rlimo1 15254 o1rlimmul 15256 climsqz 15278 climsqz2 15279 rlimsqzlem 15288 climsup 15309 caucvgrlem2 15314 iseralt 15324 cvgcmp 15456 cvgcmpce 15458 ruclem3 15870 ruclem12 15878 ltoddhalfle 15998 algcvgblem 16210 ncoprmlnprm 16360 pclem 16467 infpn2 16542 gsummoncoe1 21385 mp2pm2mplem4 21866 metss2lem 23573 ngptgp 23698 nghmcn 23815 iocopnst 24009 ovollb2lem 24557 ovolicc2lem4 24589 volcn 24675 ismbf3d 24723 dvcnvrelem1 25086 dvfsumrlim 25100 ulmcn 25463 mtest 25468 logdivlti 25680 isosctrlem1 25873 ftalem2 26128 chtub 26265 bposlem6 26342 gausslemma2dlem2 26420 chtppilim 26528 dchrisumlem3 26544 pntlem3 26662 clwlkclwwlklem2a 28263 vacn 28957 nmcvcn 28958 blocni 29068 chscllem2 29901 lnconi 30296 staddi 30509 stadd3i 30511 ltflcei 35692 poimirlem29 35733 geomcau 35844 heibor1lem 35894 bfplem2 35908 rrncmslem 35917 climinf 43037 leltletr 44673 zm1nn 44682 iccpartigtl 44763 tgoldbach 45157 ply1mulgsumlem2 45616 difmodm1lt 45756 |
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