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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 13334 | . 2 ⊢ [,) = (𝑥 ∈ ℝ*, 𝑦 ∈ ℝ* ↦ {𝑧 ∈ ℝ* ∣ (𝑥 ≤ 𝑧 ∧ 𝑧 < 𝑦)}) | |
2 | 1 | elixx1 13337 | 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 205 ∧ wa 396 ∧ w3a 1087 ∈ wcel 2106 class class class wbr 5148 (class class class)co 7411 ℝ*cxr 11251 < clt 11252 ≤ cle 11253 [,)cico 13330 |
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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2703 ax-sep 5299 ax-nul 5306 ax-pr 5427 ax-un 7727 ax-cnex 11168 ax-resscn 11169 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ral 3062 df-rex 3071 df-rab 3433 df-v 3476 df-sbc 3778 df-dif 3951 df-un 3953 df-in 3955 df-ss 3965 df-nul 4323 df-if 4529 df-sn 4629 df-pr 4631 df-op 4635 df-uni 4909 df-br 5149 df-opab 5211 df-id 5574 df-xp 5682 df-rel 5683 df-cnv 5684 df-co 5685 df-dm 5686 df-iota 6495 df-fun 6545 df-fv 6551 df-ov 7414 df-oprab 7415 df-mpo 7416 df-xr 11256 df-ico 13334 |
This theorem is referenced by: elicod 13378 icogelb 13379 lbico1 13382 elico2 13392 icodisj 13457 ico01fl0 13788 addmodid 13888 leordtvallem2 22935 pnfnei 22944 mnfnei 22945 blval2 24291 metuel2 24294 iscfil2 25007 eliccelico 32243 elicoelioo 32244 xrdifh 32246 fsumrp0cl 32451 ply1degltel 32928 ply1degleel 32929 ply1degltdimlem 32983 xrge0iifcnv 33199 esumpcvgval 33362 dnizeq0 35654 relowlssretop 36547 tan2h 36783 iocinico 42263 rfcnpre3 44019 icoltub 44520 icoiccdif 44536 iccelpart 46400 icceuelpart 46403 bgoldbtbndlem1 46772 bgoldbtbndlem2 46773 bgoldbtbndlem3 46774 bgoldbtbnd 46776 |
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