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Mirrors > Home > MPE Home > Th. List > letr | Structured version Visualization version GIF version |
Description: Transitive law. (Contributed by NM, 12-Nov-1999.) |
Ref | Expression |
---|---|
letr | ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 ≤ 𝐵 ∧ 𝐵 ≤ 𝐶) → 𝐴 ≤ 𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | leloe 10003 | . . . . 5 ⊢ ((𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐵 ≤ 𝐶 ↔ (𝐵 < 𝐶 ∨ 𝐵 = 𝐶))) | |
2 | 1 | 3adant1 1072 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐵 ≤ 𝐶 ↔ (𝐵 < 𝐶 ∨ 𝐵 = 𝐶))) |
3 | 2 | adantr 480 | . . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐴 ≤ 𝐵) → (𝐵 ≤ 𝐶 ↔ (𝐵 < 𝐶 ∨ 𝐵 = 𝐶))) |
4 | lelttr 10007 | . . . . . 6 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 ≤ 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶)) | |
5 | ltle 10005 | . . . . . . 7 ⊢ ((𝐴 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 < 𝐶 → 𝐴 ≤ 𝐶)) | |
6 | 5 | 3adant2 1073 | . . . . . 6 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 < 𝐶 → 𝐴 ≤ 𝐶)) |
7 | 4, 6 | syld 46 | . . . . 5 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 ≤ 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 ≤ 𝐶)) |
8 | 7 | expdimp 452 | . . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐴 ≤ 𝐵) → (𝐵 < 𝐶 → 𝐴 ≤ 𝐶)) |
9 | breq2 4587 | . . . . . 6 ⊢ (𝐵 = 𝐶 → (𝐴 ≤ 𝐵 ↔ 𝐴 ≤ 𝐶)) | |
10 | 9 | biimpcd 238 | . . . . 5 ⊢ (𝐴 ≤ 𝐵 → (𝐵 = 𝐶 → 𝐴 ≤ 𝐶)) |
11 | 10 | adantl 481 | . . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐴 ≤ 𝐵) → (𝐵 = 𝐶 → 𝐴 ≤ 𝐶)) |
12 | 8, 11 | jaod 394 | . . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐴 ≤ 𝐵) → ((𝐵 < 𝐶 ∨ 𝐵 = 𝐶) → 𝐴 ≤ 𝐶)) |
13 | 3, 12 | sylbid 229 | . 2 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐴 ≤ 𝐵) → (𝐵 ≤ 𝐶 → 𝐴 ≤ 𝐶)) |
14 | 13 | expimpd 627 | 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: letri 10045 letrd 10073 le2add 10389 le2sub 10406 p1le 10745 lemul12b 10759 lemul12a 10760 zletr 11298 peano2uz2 11341 ledivge1le 11777 lemaxle 11900 elfz1b 12279 elfz0fzfz0 12313 fz0fzelfz0 12314 fz0fzdiffz0 12317 elfzmlbp 12319 difelfznle 12322 elincfzoext 12393 ssfzoulel 12428 ssfzo12bi 12429 flge 12468 flflp1 12470 fldiv4p1lem1div2 12498 fldiv4lem1div2uz2 12499 monoord 12693 leexp2r 12780 expubnd 12783 le2sq2 12801 facwordi 12938 faclbnd3 12941 facavg 12950 fi1uzind 13134 fi1uzindOLD 13140 swrdswrdlem 13311 swrdccat 13344 sqrlem1 13831 sqrlem6 13836 sqrlem7 13837 leabs 13887 limsupbnd2 14062 rlim3 14077 lo1bdd2 14103 lo1bddrp 14104 o1lo1 14116 lo1mul 14206 lo1le 14230 isercolllem2 14244 iseraltlem2 14261 fsumabs 14374 cvgrat 14454 ruclem9 14806 algcvga 15130 prmdvdsfz 15255 prmfac1 15269 eulerthlem2 15325 modprm0 15348 prmreclem1 15458 prmreclem4 15461 4sqlem11 15497 vdwnnlem3 15539 gsumbagdiaglem 19196 zntoslem 19724 cnllycmp 22563 evth 22566 ovoliunlem2 23078 ovolicc2lem3 23094 itg2monolem1 23323 coeaddlem 23809 coemullem 23810 aalioulem5 23895 aalioulem6 23896 sincosq1lem 24053 emcllem6 24527 ftalem3 24601 fsumvma2 24739 chpchtsum 24744 bcmono 24802 bposlem5 24813 gausslemma2dlem1a 24890 lgsquadlem1 24905 dchrisum0lem1 25005 pntrsumbnd2 25056 pntleml 25100 brbtwn2 25585 axlowdimlem17 25638 axlowdim 25641 wwlksubclwwlk 26332 clwlkfclwwlk 26371 eupath2 26507 nmoub3i 27012 ubthlem1 27110 ubthlem2 27111 nmopub2tALT 28152 nmfnleub2 28169 lnconi 28276 leoptr 28380 pjnmopi 28391 cdj3lem2b 28680 eulerpartlemb 29757 isbasisrelowllem1 32379 isbasisrelowllem2 32380 ltflcei 32567 itg2addnclem2 32632 itg2addnclem3 32633 itg2addnc 32634 bddiblnc 32650 dvasin 32666 incsequz 32714 mettrifi 32723 equivbnd 32759 bfplem1 32791 jm2.17b 36546 fmul01lt1lem2 38652 iccpartiltu 39960 iccpartgt 39965 lighneallem2 40061 eluzge0nn0 40350 elfz2z 40352 crctcsh1wlkn0lem3 41015 crctcsh1wlkn0lem5 41017 wwlksubclwwlks 41232 clwlksfclwwlk 41269 eupth2lems 41406 |
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