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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 13298 | . 2 ⊢ [,) = (𝑥 ∈ ℝ*, 𝑦 ∈ ℝ* ↦ {𝑧 ∈ ℝ* ∣ (𝑥 ≤ 𝑧 ∧ 𝑧 < 𝑦)}) | |
| 2 | 1 | elixx1 13301 | 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 5086 (class class class)co 7361 ℝ*cxr 11172 < clt 11173 ≤ cle 11174 [,)cico 13294 |
| 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 5232 ax-pr 5371 ax-un 7683 ax-cnex 11088 ax-resscn 11089 |
| 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 3391 df-v 3432 df-sbc 3730 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-id 5520 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-iota 6449 df-fun 6495 df-fv 6501 df-ov 7364 df-oprab 7365 df-mpo 7366 df-xr 11177 df-ico 13298 |
| This theorem is referenced by: elicod 13342 icogelb 13343 lbico1 13347 elico2 13357 icodisj 13423 ico01fl0 13772 addmodid 13875 leordtvallem2 23189 pnfnei 23198 mnfnei 23199 blval2 24540 metuel2 24543 iscfil2 25246 eliccelico 32868 elicoelioo 32869 xrdifh 32871 fsumrp0cl 33099 ply1degltel 33672 ply1degleel 33673 ply1degltdimlem 33785 xrge0iifcnv 34096 esumpcvgval 34241 dnizeq0 36754 relowlssretop 37696 tan2h 37950 iocinico 43661 rfcnpre3 45485 icoltub 45959 icoiccdif 45975 iccelpart 47908 icceuelpart 47911 bgoldbtbndlem1 48296 bgoldbtbndlem2 48297 bgoldbtbndlem3 48298 bgoldbtbnd 48300 |
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