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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 13281 | . 2 ⊢ [,) = (𝑥 ∈ ℝ*, 𝑦 ∈ ℝ* ↦ {𝑧 ∈ ℝ* ∣ (𝑥 ≤ 𝑧 ∧ 𝑧 < 𝑦)}) | |
| 2 | 1 | elixx1 13284 | 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 206 ∧ wa 395 ∧ w3a 1087 ∈ wcel 2114 class class class wbr 5100 (class class class)co 7370 ℝ*cxr 11179 < clt 11180 ≤ cle 11181 [,)cico 13277 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5245 ax-pr 5381 ax-un 7692 ax-cnex 11096 ax-resscn 11097 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ral 3053 df-rex 3063 df-rab 3402 df-v 3444 df-sbc 3743 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-id 5529 df-xp 5640 df-rel 5641 df-cnv 5642 df-co 5643 df-dm 5644 df-iota 6458 df-fun 6504 df-fv 6510 df-ov 7373 df-oprab 7374 df-mpo 7375 df-xr 11184 df-ico 13281 |
| This theorem is referenced by: elicod 13325 icogelb 13326 lbico1 13330 elico2 13340 icodisj 13406 ico01fl0 13753 addmodid 13856 leordtvallem2 23172 pnfnei 23181 mnfnei 23182 blval2 24523 metuel2 24526 iscfil2 25239 eliccelico 32874 elicoelioo 32875 xrdifh 32877 fsumrp0cl 33120 ply1degltel 33693 ply1degleel 33694 ply1degltdimlem 33806 xrge0iifcnv 34117 esumpcvgval 34262 dnizeq0 36703 relowlssretop 37645 tan2h 37892 iocinico 43598 rfcnpre3 45422 icoltub 45897 icoiccdif 45913 iccelpart 47822 icceuelpart 47825 bgoldbtbndlem1 48194 bgoldbtbndlem2 48195 bgoldbtbndlem3 48196 bgoldbtbnd 48198 |
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