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| Mirrors > Home > MPE Home > Th. List > elico1 | Structured version Visualization version GIF version | ||
| Description: Membership in a closed-below, open-above interval of extended reals. (Contributed by NM, 24-Dec-2006.) (Revised by Mario Carneiro, 3-Nov-2013.) |
| Ref | Expression |
|---|---|
| elico1 | ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐶 ∈ (𝐴[,)𝐵) ↔ (𝐶 ∈ ℝ* ∧ 𝐴 ≤ 𝐶 ∧ 𝐶 < 𝐵))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-ico 13295 | . 2 ⊢ [,) = (𝑥 ∈ ℝ*, 𝑦 ∈ ℝ* ↦ {𝑧 ∈ ℝ* ∣ (𝑥 ≤ 𝑧 ∧ 𝑧 < 𝑦)}) | |
| 2 | 1 | elixx1 13298 | 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 207 ∧ wa 396 ∧ w3a 1092 ∈ wcel 2119 class class class wbr 5072 (class class class)co 7356 ℝ*cxr 11169 < clt 11170 ≤ cle 11171 [,)cico 13291 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2711 ax-sep 5218 ax-pr 5362 ax-un 7678 ax-cnex 11085 ax-resscn 11086 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2718 df-cleq 2731 df-clel 2814 df-nfc 2888 df-ral 3054 df-rex 3064 df-rab 3392 df-v 3433 df-sbc 3724 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4262 df-if 4455 df-pw 4531 df-sn 4556 df-pr 4558 df-op 4562 df-uni 4839 df-br 5073 df-opab 5135 df-id 5513 df-xp 5624 df-rel 5625 df-cnv 5626 df-co 5627 df-dm 5628 df-iota 6441 df-fun 6487 df-fv 6493 df-ov 7359 df-oprab 7360 df-mpo 7361 df-xr 11174 df-ico 13295 |
| This theorem is referenced by: elicod 13339 icogelb 13340 lbico1 13344 elico2 13354 icodisj 13420 ico01fl0 13769 addmodid 13872 leordtvallem2 23194 pnfnei 23203 mnfnei 23204 blval2 24545 metuel2 24548 iscfil2 25251 eliccelico 32869 elicoelioo 32870 xrdifh 32872 fsumrp0cl 33100 ply1degltel 33677 ply1degleel 33678 ply1degltdimlem 33806 xrge0iifcnv 34117 esumpcvgval 34262 dnizeq0 36781 relowlssretop 37725 tan2h 37979 iocinico 43657 rfcnpre3 45481 icoltub 45953 icoiccdif 45969 iccelpart 47908 icceuelpart 47911 bgoldbtbndlem1 48296 bgoldbtbndlem2 48297 bgoldbtbndlem3 48298 bgoldbtbnd 48300 |
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