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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 10992 | . . . . 5 ⊢ ((𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐵 ≤ 𝐶 ↔ (𝐵 < 𝐶 ∨ 𝐵 = 𝐶))) | |
2 | 1 | 3adant1 1128 | . . . 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 10996 | . . . . . 6 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 ≤ 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶)) | |
5 | ltle 10994 | . . . . . . 7 ⊢ ((𝐴 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 < 𝐶 → 𝐴 ≤ 𝐶)) | |
6 | 5 | 3adant2 1129 | . . . . . 6 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 < 𝐶 → 𝐴 ≤ 𝐶)) |
7 | 4, 6 | syld 47 | . . . . 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 5074 | . . . . . 6 ⊢ (𝐵 = 𝐶 → (𝐴 ≤ 𝐵 ↔ 𝐴 ≤ 𝐶)) | |
10 | 9 | biimpcd 248 | . . . . 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 855 | . . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐴 ≤ 𝐵) → ((𝐵 < 𝐶 ∨ 𝐵 = 𝐶) → 𝐴 ≤ 𝐶)) |
13 | 3, 12 | sylbid 239 | . 2 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐴 ≤ 𝐵) → (𝐵 ≤ 𝐶 → 𝐴 ≤ 𝐶)) |
14 | 13 | expimpd 453 | 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: letri 11034 letrd 11062 le2add 11387 le2sub 11404 p1le 11750 lemul12b 11762 lemul12a 11763 zletr 12294 peano2uz2 12338 ledivge1le 12730 lemaxle 12858 elfz1b 13254 elfz0fzfz0 13290 fz0fzelfz0 13291 fz0fzdiffz0 13294 elfzmlbp 13296 difelfznle 13299 elincfzoext 13373 ssfzoulel 13409 ssfzo12bi 13410 flge 13453 flflp1 13455 fldiv4p1lem1div2 13483 fldiv4lem1div2uz2 13484 monoord 13681 le2sq2 13782 leexp2r 13820 expubnd 13823 facwordi 13931 faclbnd3 13934 facavg 13943 fi1uzind 14139 swrdswrdlem 14345 swrdccat 14376 sqrlem1 14882 sqrlem6 14887 sqrlem7 14888 leabs 14939 limsupbnd2 15120 rlim3 15135 lo1bdd2 15161 lo1bddrp 15162 o1lo1 15174 lo1mul 15265 lo1le 15291 isercolllem2 15305 iseraltlem2 15322 fsumabs 15441 cvgrat 15523 ruclem9 15875 algcvga 16212 prmdvdsfz 16338 prmfac1 16354 eulerthlem2 16411 modprm0 16434 prmreclem1 16545 prmreclem4 16548 4sqlem11 16584 vdwnnlem3 16626 zntoslem 20676 gsumbagdiaglemOLD 21051 gsumbagdiaglem 21054 cnllycmp 24025 evth 24028 ovoliunlem2 24572 ovolicc2lem3 24588 itg2monolem1 24820 bddiblnc 24911 coeaddlem 25315 coemullem 25316 aalioulem5 25401 aalioulem6 25402 sincosq1lem 25559 emcllem6 26055 ftalem3 26129 fsumvma2 26267 chpchtsum 26272 bcmono 26330 bposlem5 26341 gausslemma2dlem1a 26418 lgsquadlem1 26433 dchrisum0lem1 26569 pntrsumbnd2 26620 pntleml 26664 brbtwn2 27176 axlowdimlem17 27229 axlowdim 27232 crctcshwlkn0lem3 28078 crctcshwlkn0lem5 28080 wwlksubclwwlk 28323 eupth2lems 28503 nmoub3i 29036 ubthlem1 29133 ubthlem2 29134 nmopub2tALT 30172 nmfnleub2 30189 lnconi 30296 leoptr 30400 pjnmopi 30411 cdj3lem2b 30700 eulerpartlemb 32235 isbasisrelowllem1 35453 isbasisrelowllem2 35454 ltflcei 35692 itg2addnclem2 35756 itg2addnclem3 35757 itg2addnc 35758 dvasin 35788 incsequz 35833 mettrifi 35842 equivbnd 35875 bfplem1 35907 jm2.17b 40699 fmul01lt1lem2 43016 eluzge0nn0 44692 elfz2z 44695 iccpartiltu 44762 iccpartgt 44767 lighneallem2 44946 |
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