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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 1136 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 ≤ 𝐵) → 𝐴 ∈ ℝ*) | |
2 | xrleid 12931 | . . 3 ⊢ (𝐴 ∈ ℝ* → 𝐴 ≤ 𝐴) | |
3 | 2 | 3ad2ant1 1133 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 ≤ 𝐵) → 𝐴 ≤ 𝐴) |
4 | simp3 1138 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 ≤ 𝐵) → 𝐴 ≤ 𝐵) | |
5 | elicc1 13169 | . . 3 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴 ∈ (𝐴[,]𝐵) ↔ (𝐴 ∈ ℝ* ∧ 𝐴 ≤ 𝐴 ∧ 𝐴 ≤ 𝐵))) | |
6 | 5 | 3adant3 1132 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 ≤ 𝐵) → (𝐴 ∈ (𝐴[,]𝐵) ↔ (𝐴 ∈ ℝ* ∧ 𝐴 ≤ 𝐴 ∧ 𝐴 ≤ 𝐵))) |
7 | 1, 3, 4, 6 | mpbir3and 1342 | 1 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 ≤ 𝐵) → 𝐴 ∈ (𝐴[,]𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ w3a 1087 ∈ wcel 2104 class class class wbr 5081 (class class class)co 7307 ℝ*cxr 11054 ≤ cle 11056 [,]cicc 13128 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1911 ax-6 1969 ax-7 2009 ax-8 2106 ax-9 2114 ax-10 2135 ax-11 2152 ax-12 2169 ax-ext 2707 ax-sep 5232 ax-nul 5239 ax-pow 5297 ax-pr 5361 ax-un 7620 ax-cnex 10973 ax-resscn 10974 ax-pre-lttri 10991 ax-pre-lttrn 10992 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 846 df-3or 1088 df-3an 1089 df-tru 1542 df-fal 1552 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2887 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rab 3287 df-v 3439 df-sbc 3722 df-csb 3838 df-dif 3895 df-un 3897 df-in 3899 df-ss 3909 df-nul 4263 df-if 4466 df-pw 4541 df-sn 4566 df-pr 4568 df-op 4572 df-uni 4845 df-br 5082 df-opab 5144 df-mpt 5165 df-id 5500 df-po 5514 df-so 5515 df-xp 5606 df-rel 5607 df-cnv 5608 df-co 5609 df-dm 5610 df-rn 5611 df-res 5612 df-ima 5613 df-iota 6410 df-fun 6460 df-fn 6461 df-f 6462 df-f1 6463 df-fo 6464 df-f1o 6465 df-fv 6466 df-ov 7310 df-oprab 7311 df-mpo 7312 df-er 8529 df-en 8765 df-dom 8766 df-sdom 8767 df-pnf 11057 df-mnf 11058 df-xr 11059 df-ltxr 11060 df-le 11061 df-icc 13132 |
This theorem is referenced by: icccmplem1 24030 reconnlem2 24035 oprpiece1res1 24159 pcoass 24232 ivthlem1 24660 ivth2 24664 ivthle 24665 ivthle2 24666 evthicc 24668 ovolicc2lem5 24730 dyadmaxlem 24806 rolle 25199 cmvth 25200 mvth 25201 dvlip 25202 c1liplem1 25205 dveq0 25209 dvgt0lem1 25211 lhop1lem 25222 dvcnvrelem1 25226 dvcvx 25229 dvfsumle 25230 dvfsumge 25231 dvfsumabs 25232 dvfsumlem2 25236 ftc2 25253 ftc2ditglem 25254 itgparts 25256 itgsubstlem 25257 itgpowd 25259 taylfval 25563 tayl0 25566 efcvx 25653 pige3ALT 25721 logccv 25863 loglesqrt 25956 eliccioo 31250 ftc2re 32623 cvmliftlem6 33297 cvmliftlem8 33299 cvmliftlem9 33300 cvmliftlem10 33301 cvmliftlem13 33303 ivthALT 34569 ftc2nc 35903 areacirc 35914 iccintsng 43110 icccncfext 43477 cncfiooicclem1 43483 dvbdfbdioolem1 43518 itgsin0pilem1 43540 itgcoscmulx 43559 itgsincmulx 43564 fourierdlem20 43717 fourierdlem51 43747 fourierdlem54 43750 fourierdlem64 43760 fourierdlem73 43769 fourierdlem81 43777 fourierdlem102 43798 fourierdlem103 43799 fourierdlem104 43800 fourierdlem114 43810 etransclem46 43870 hoidmv1lelem1 44179 |
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