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Mirrors > Home > MPE Home > Th. List > elioo2 | Structured version Visualization version GIF version |
Description: Membership in an open interval of extended reals. (Contributed by NM, 6-Feb-2007.) |
Ref | Expression |
---|---|
elioo2 | ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐶 ∈ (𝐴(,)𝐵) ↔ (𝐶 ∈ ℝ ∧ 𝐴 < 𝐶 ∧ 𝐶 < 𝐵))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | iooval2 12770 | . . 3 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴(,)𝐵) = {𝑥 ∈ ℝ ∣ (𝐴 < 𝑥 ∧ 𝑥 < 𝐵)}) | |
2 | 1 | eleq2d 2898 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐶 ∈ (𝐴(,)𝐵) ↔ 𝐶 ∈ {𝑥 ∈ ℝ ∣ (𝐴 < 𝑥 ∧ 𝑥 < 𝐵)})) |
3 | breq2 5069 | . . . . 5 ⊢ (𝑥 = 𝐶 → (𝐴 < 𝑥 ↔ 𝐴 < 𝐶)) | |
4 | breq1 5068 | . . . . 5 ⊢ (𝑥 = 𝐶 → (𝑥 < 𝐵 ↔ 𝐶 < 𝐵)) | |
5 | 3, 4 | anbi12d 632 | . . . 4 ⊢ (𝑥 = 𝐶 → ((𝐴 < 𝑥 ∧ 𝑥 < 𝐵) ↔ (𝐴 < 𝐶 ∧ 𝐶 < 𝐵))) |
6 | 5 | elrab 3679 | . . 3 ⊢ (𝐶 ∈ {𝑥 ∈ ℝ ∣ (𝐴 < 𝑥 ∧ 𝑥 < 𝐵)} ↔ (𝐶 ∈ ℝ ∧ (𝐴 < 𝐶 ∧ 𝐶 < 𝐵))) |
7 | 3anass 1091 | . . 3 ⊢ ((𝐶 ∈ ℝ ∧ 𝐴 < 𝐶 ∧ 𝐶 < 𝐵) ↔ (𝐶 ∈ ℝ ∧ (𝐴 < 𝐶 ∧ 𝐶 < 𝐵))) | |
8 | 6, 7 | bitr4i 280 | . 2 ⊢ (𝐶 ∈ {𝑥 ∈ ℝ ∣ (𝐴 < 𝑥 ∧ 𝑥 < 𝐵)} ↔ (𝐶 ∈ ℝ ∧ 𝐴 < 𝐶 ∧ 𝐶 < 𝐵)) |
9 | 2, 8 | syl6bb 289 | 1 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐶 ∈ (𝐴(,)𝐵) ↔ (𝐶 ∈ ℝ ∧ 𝐴 < 𝐶 ∧ 𝐶 < 𝐵))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 208 ∧ wa 398 ∧ w3a 1083 = wceq 1533 ∈ wcel 2110 {crab 3142 class class class wbr 5065 (class class class)co 7155 ℝcr 10535 ℝ*cxr 10673 < clt 10674 (,)cioo 12737 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5202 ax-nul 5209 ax-pow 5265 ax-pr 5329 ax-un 7460 ax-cnex 10592 ax-resscn 10593 ax-pre-lttri 10610 ax-pre-lttrn 10611 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4567 df-pr 4569 df-op 4573 df-uni 4838 df-iun 4920 df-br 5066 df-opab 5128 df-mpt 5146 df-id 5459 df-po 5473 df-so 5474 df-xp 5560 df-rel 5561 df-cnv 5562 df-co 5563 df-dm 5564 df-rn 5565 df-res 5566 df-ima 5567 df-iota 6313 df-fun 6356 df-fn 6357 df-f 6358 df-f1 6359 df-fo 6360 df-f1o 6361 df-fv 6362 df-ov 7158 df-oprab 7159 df-mpo 7160 df-1st 7688 df-2nd 7689 df-er 8288 df-en 8509 df-dom 8510 df-sdom 8511 df-pnf 10676 df-mnf 10677 df-xr 10678 df-ltxr 10679 df-le 10680 df-ioo 12741 |
This theorem is referenced by: eliooord 12795 elioopnf 12830 elioomnf 12831 difreicc 12869 xov1plusxeqvd 12883 tanhbnd 15513 bl2ioo 23399 xrtgioo 23413 zcld 23420 iccntr 23428 icccmplem2 23430 reconnlem1 23433 reconnlem2 23434 icoopnst 23542 iocopnst 23543 ivthlem3 24053 ovolicc2lem1 24117 ovolicc2lem5 24121 ioombl1lem4 24161 mbfmax 24249 itg2monolem1 24350 itg2monolem3 24352 dvferm1lem 24580 dvferm2lem 24582 dvlip2 24591 dvivthlem1 24604 lhop1lem 24609 lhop 24612 dvcnvrelem1 24613 dvcnvre 24615 itgsubst 24645 sincosq1sgn 25083 sincosq2sgn 25084 sincosq3sgn 25085 sincosq4sgn 25086 coseq00topi 25087 tanabsge 25091 sinq12gt0 25092 sinq12ge0 25093 cosq14gt0 25095 sincos6thpi 25100 sineq0 25108 cos02pilt1 25110 cosq34lt1 25111 cosordlem 25114 tanord1 25120 tanord 25121 argregt0 25192 argimgt0 25194 argimlt0 25195 dvloglem 25230 logf1o2 25232 efopnlem2 25239 asinsinlem 25468 acoscos 25470 atanlogsublem 25492 atantan 25500 atanbndlem 25502 atanbnd 25503 atan1 25505 scvxcvx 25562 basellem1 25657 pntibndlem1 26164 pntibnd 26168 pntlemc 26170 padicabvf 26206 padicabvcxp 26207 dfrp2 30490 cnre2csqlem 31153 ivthALT 33683 iooelexlt 34642 itg2gt0cn 34946 iblabsnclem 34954 dvasin 34977 areacirclem1 34981 areacirc 34986 cvgdvgrat 40643 radcnvrat 40644 sineq0ALT 41269 ioogtlb 41768 eliood 41771 eliooshift 41780 iooltub 41784 limciccioolb 41900 limcicciooub 41916 cncfioobdlem 42177 ditgeqiooicc 42243 dirkercncflem1 42387 dirkercncflem4 42390 fourierdlem10 42401 fourierdlem32 42423 fourierdlem62 42452 fourierdlem81 42471 fourierdlem82 42472 fourierdlem93 42483 fourierdlem104 42494 fourierdlem111 42501 |
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