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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 1134 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 ≤ 𝐵) → 𝐴 ∈ ℝ*) | |
2 | xrleid 12867 | . . 3 ⊢ (𝐴 ∈ ℝ* → 𝐴 ≤ 𝐴) | |
3 | 2 | 3ad2ant1 1131 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 ≤ 𝐵) → 𝐴 ≤ 𝐴) |
4 | simp3 1136 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 ≤ 𝐵) → 𝐴 ≤ 𝐵) | |
5 | elicc1 13105 | . . 3 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴 ∈ (𝐴[,]𝐵) ↔ (𝐴 ∈ ℝ* ∧ 𝐴 ≤ 𝐴 ∧ 𝐴 ≤ 𝐵))) | |
6 | 5 | 3adant3 1130 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 ≤ 𝐵) → (𝐴 ∈ (𝐴[,]𝐵) ↔ (𝐴 ∈ ℝ* ∧ 𝐴 ≤ 𝐴 ∧ 𝐴 ≤ 𝐵))) |
7 | 1, 3, 4, 6 | mpbir3and 1340 | 1 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 ≤ 𝐵) → 𝐴 ∈ (𝐴[,]𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ w3a 1085 ∈ wcel 2109 class class class wbr 5078 (class class class)co 7268 ℝ*cxr 10992 ≤ cle 10994 [,]cicc 13064 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7579 ax-cnex 10911 ax-resscn 10912 ax-pre-lttri 10929 ax-pre-lttrn 10930 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-nel 3051 df-ral 3070 df-rex 3071 df-rab 3074 df-v 3432 df-sbc 3720 df-csb 3837 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-nul 4262 df-if 4465 df-pw 4540 df-sn 4567 df-pr 4569 df-op 4573 df-uni 4845 df-br 5079 df-opab 5141 df-mpt 5162 df-id 5488 df-po 5502 df-so 5503 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-rn 5599 df-res 5600 df-ima 5601 df-iota 6388 df-fun 6432 df-fn 6433 df-f 6434 df-f1 6435 df-fo 6436 df-f1o 6437 df-fv 6438 df-ov 7271 df-oprab 7272 df-mpo 7273 df-er 8472 df-en 8708 df-dom 8709 df-sdom 8710 df-pnf 10995 df-mnf 10996 df-xr 10997 df-ltxr 10998 df-le 10999 df-icc 13068 |
This theorem is referenced by: icccmplem1 23966 reconnlem2 23971 oprpiece1res1 24095 pcoass 24168 ivthlem1 24596 ivth2 24600 ivthle 24601 ivthle2 24602 evthicc 24604 ovolicc2lem5 24666 dyadmaxlem 24742 rolle 25135 cmvth 25136 mvth 25137 dvlip 25138 c1liplem1 25141 dveq0 25145 dvgt0lem1 25147 lhop1lem 25158 dvcnvrelem1 25162 dvcvx 25165 dvfsumle 25166 dvfsumge 25167 dvfsumabs 25168 dvfsumlem2 25172 ftc2 25189 ftc2ditglem 25190 itgparts 25192 itgsubstlem 25193 itgpowd 25195 taylfval 25499 tayl0 25502 efcvx 25589 pige3ALT 25657 logccv 25799 loglesqrt 25892 eliccioo 31184 ftc2re 32557 cvmliftlem6 33231 cvmliftlem8 33233 cvmliftlem9 33234 cvmliftlem10 33235 cvmliftlem13 33237 ivthALT 34503 ftc2nc 35838 areacirc 35849 iccintsng 43015 icccncfext 43382 cncfiooicclem1 43388 dvbdfbdioolem1 43423 itgsin0pilem1 43445 itgcoscmulx 43464 itgsincmulx 43469 fourierdlem20 43622 fourierdlem51 43652 fourierdlem54 43655 fourierdlem64 43665 fourierdlem73 43674 fourierdlem81 43682 fourierdlem102 43703 fourierdlem103 43704 fourierdlem104 43705 fourierdlem114 43715 etransclem46 43775 hoidmv1lelem1 44083 |
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