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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 12774 | . . 3 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴(,)𝐵) = {𝑥 ∈ ℝ ∣ (𝐴 < 𝑥 ∧ 𝑥 < 𝐵)}) | |
2 | 1 | eleq2d 2900 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐶 ∈ (𝐴(,)𝐵) ↔ 𝐶 ∈ {𝑥 ∈ ℝ ∣ (𝐴 < 𝑥 ∧ 𝑥 < 𝐵)})) |
3 | breq2 5072 | . . . . 5 ⊢ (𝑥 = 𝐶 → (𝐴 < 𝑥 ↔ 𝐴 < 𝐶)) | |
4 | breq1 5071 | . . . . 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 3682 | . . 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 1537 ∈ wcel 2114 {crab 3144 class class class wbr 5068 (class class class)co 7158 ℝcr 10538 ℝ*cxr 10676 < clt 10677 (,)cioo 12741 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 ax-un 7463 ax-cnex 10595 ax-resscn 10596 ax-pre-lttri 10613 ax-pre-lttrn 10614 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ne 3019 df-nel 3126 df-ral 3145 df-rex 3146 df-rab 3149 df-v 3498 df-sbc 3775 df-csb 3886 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-pw 4543 df-sn 4570 df-pr 4572 df-op 4576 df-uni 4841 df-iun 4923 df-br 5069 df-opab 5131 df-mpt 5149 df-id 5462 df-po 5476 df-so 5477 df-xp 5563 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-rn 5568 df-res 5569 df-ima 5570 df-iota 6316 df-fun 6359 df-fn 6360 df-f 6361 df-f1 6362 df-fo 6363 df-f1o 6364 df-fv 6365 df-ov 7161 df-oprab 7162 df-mpo 7163 df-1st 7691 df-2nd 7692 df-er 8291 df-en 8512 df-dom 8513 df-sdom 8514 df-pnf 10679 df-mnf 10680 df-xr 10681 df-ltxr 10682 df-le 10683 df-ioo 12745 |
This theorem is referenced by: eliooord 12799 elioopnf 12834 elioomnf 12835 difreicc 12873 xov1plusxeqvd 12887 tanhbnd 15516 bl2ioo 23402 xrtgioo 23416 zcld 23423 iccntr 23431 icccmplem2 23433 reconnlem1 23436 reconnlem2 23437 icoopnst 23545 iocopnst 23546 ivthlem3 24056 ovolicc2lem1 24120 ovolicc2lem5 24124 ioombl1lem4 24164 mbfmax 24252 itg2monolem1 24353 itg2monolem3 24355 dvferm1lem 24583 dvferm2lem 24585 dvlip2 24594 dvivthlem1 24607 lhop1lem 24612 lhop 24615 dvcnvrelem1 24616 dvcnvre 24618 itgsubst 24648 sincosq1sgn 25086 sincosq2sgn 25087 sincosq3sgn 25088 sincosq4sgn 25089 coseq00topi 25090 tanabsge 25094 sinq12gt0 25095 sinq12ge0 25096 cosq14gt0 25098 sincos6thpi 25103 sineq0 25111 cos02pilt1 25113 cosq34lt1 25114 cosordlem 25117 tanord1 25123 tanord 25124 argregt0 25195 argimgt0 25197 argimlt0 25198 dvloglem 25233 logf1o2 25235 efopnlem2 25242 asinsinlem 25471 acoscos 25473 atanlogsublem 25495 atantan 25503 atanbndlem 25505 atanbnd 25506 atan1 25508 scvxcvx 25565 basellem1 25660 pntibndlem1 26167 pntibnd 26171 pntlemc 26173 padicabvf 26209 padicabvcxp 26210 dfrp2 30493 cnre2csqlem 31155 ivthALT 33685 iooelexlt 34645 itg2gt0cn 34949 iblabsnclem 34957 dvasin 34980 areacirclem1 34984 areacirc 34989 cvgdvgrat 40652 radcnvrat 40653 sineq0ALT 41278 ioogtlb 41777 eliood 41780 eliooshift 41789 iooltub 41793 limciccioolb 41909 limcicciooub 41925 cncfioobdlem 42186 ditgeqiooicc 42252 dirkercncflem1 42395 dirkercncflem4 42398 fourierdlem10 42409 fourierdlem32 42431 fourierdlem62 42460 fourierdlem81 42479 fourierdlem82 42480 fourierdlem93 42491 fourierdlem104 42502 fourierdlem111 42509 |
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