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Mirrors > Home > MPE Home > Th. List > lbicc2 | Structured version Visualization version GIF version |
Description: The lower bound of a closed interval is a member of it. (Contributed by Paul Chapman, 26-Nov-2007.) (Revised by FL, 29-May-2014.) (Revised by Mario Carneiro, 9-Sep-2015.) |
Ref | Expression |
---|---|
lbicc2 | ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 ≤ 𝐵) → 𝐴 ∈ (𝐴[,]𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simp1 1137 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 ≤ 𝐵) → 𝐴 ∈ ℝ*) | |
2 | xrleid 13130 | . . 3 ⊢ (𝐴 ∈ ℝ* → 𝐴 ≤ 𝐴) | |
3 | 2 | 3ad2ant1 1134 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 ≤ 𝐵) → 𝐴 ≤ 𝐴) |
4 | simp3 1139 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 ≤ 𝐵) → 𝐴 ≤ 𝐵) | |
5 | elicc1 13368 | . . 3 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴 ∈ (𝐴[,]𝐵) ↔ (𝐴 ∈ ℝ* ∧ 𝐴 ≤ 𝐴 ∧ 𝐴 ≤ 𝐵))) | |
6 | 5 | 3adant3 1133 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 ≤ 𝐵) → (𝐴 ∈ (𝐴[,]𝐵) ↔ (𝐴 ∈ ℝ* ∧ 𝐴 ≤ 𝐴 ∧ 𝐴 ≤ 𝐵))) |
7 | 1, 3, 4, 6 | mpbir3and 1343 | 1 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 ≤ 𝐵) → 𝐴 ∈ (𝐴[,]𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ w3a 1088 ∈ wcel 2107 class class class wbr 5149 (class class class)co 7409 ℝ*cxr 11247 ≤ cle 11249 [,]cicc 13327 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-sep 5300 ax-nul 5307 ax-pow 5364 ax-pr 5428 ax-un 7725 ax-cnex 11166 ax-resscn 11167 ax-pre-lttri 11184 ax-pre-lttrn 11185 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rab 3434 df-v 3477 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-op 4636 df-uni 4910 df-br 5150 df-opab 5212 df-mpt 5233 df-id 5575 df-po 5589 df-so 5590 df-xp 5683 df-rel 5684 df-cnv 5685 df-co 5686 df-dm 5687 df-rn 5688 df-res 5689 df-ima 5690 df-iota 6496 df-fun 6546 df-fn 6547 df-f 6548 df-f1 6549 df-fo 6550 df-f1o 6551 df-fv 6552 df-ov 7412 df-oprab 7413 df-mpo 7414 df-er 8703 df-en 8940 df-dom 8941 df-sdom 8942 df-pnf 11250 df-mnf 11251 df-xr 11252 df-ltxr 11253 df-le 11254 df-icc 13331 |
This theorem is referenced by: icccmplem1 24338 reconnlem2 24343 oprpiece1res1 24467 pcoass 24540 ivthlem1 24968 ivth2 24972 ivthle 24973 ivthle2 24974 evthicc 24976 ovolicc2lem5 25038 dyadmaxlem 25114 rolle 25507 cmvth 25508 mvth 25509 dvlip 25510 c1liplem1 25513 dveq0 25517 dvgt0lem1 25519 lhop1lem 25530 dvcnvrelem1 25534 dvcvx 25537 dvfsumle 25538 dvfsumge 25539 dvfsumabs 25540 dvfsumlem2 25544 ftc2 25561 ftc2ditglem 25562 itgparts 25564 itgsubstlem 25565 itgpowd 25567 taylfval 25871 tayl0 25874 efcvx 25961 pige3ALT 26029 logccv 26171 loglesqrt 26266 eliccioo 32097 ftc2re 33610 cvmliftlem6 34281 cvmliftlem8 34283 cvmliftlem9 34284 cvmliftlem10 34285 cvmliftlem13 34287 gg-cmvth 35181 gg-dvfsumle 35182 gg-dvfsumlem2 35183 ivthALT 35220 ftc2nc 36570 areacirc 36581 iccintsng 44236 icccncfext 44603 cncfiooicclem1 44609 dvbdfbdioolem1 44644 itgsin0pilem1 44666 itgcoscmulx 44685 itgsincmulx 44690 fourierdlem20 44843 fourierdlem51 44873 fourierdlem54 44876 fourierdlem64 44886 fourierdlem73 44895 fourierdlem81 44903 fourierdlem102 44924 fourierdlem103 44925 fourierdlem104 44926 fourierdlem114 44936 etransclem46 44996 hoidmv1lelem1 45307 |
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