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Mirrors > Home > MPE Home > Th. List > iooss2 | Structured version Visualization version GIF version |
Description: Subset relationship for open intervals of extended reals. (Contributed by NM, 7-Feb-2007.) (Revised by Mario Carneiro, 3-Nov-2013.) |
Ref | Expression |
---|---|
iooss2 | ⊢ ((𝐶 ∈ ℝ* ∧ 𝐵 ≤ 𝐶) → (𝐴(,)𝐵) ⊆ (𝐴(,)𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ioo 12904 | . 2 ⊢ (,) = (𝑥 ∈ ℝ*, 𝑦 ∈ ℝ* ↦ {𝑧 ∈ ℝ* ∣ (𝑥 < 𝑧 ∧ 𝑧 < 𝑦)}) | |
2 | xrltletr 12712 | . 2 ⊢ ((𝑤 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐶 ∈ ℝ*) → ((𝑤 < 𝐵 ∧ 𝐵 ≤ 𝐶) → 𝑤 < 𝐶)) | |
3 | 1, 1, 2 | ixxss2 12919 | 1 ⊢ ((𝐶 ∈ ℝ* ∧ 𝐵 ≤ 𝐶) → (𝐴(,)𝐵) ⊆ (𝐴(,)𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 ∈ wcel 2112 ⊆ wss 3853 class class class wbr 5039 (class class class)co 7191 ℝ*cxr 10831 < clt 10832 ≤ cle 10833 (,)cioo 12900 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2018 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2160 ax-12 2177 ax-ext 2708 ax-sep 5177 ax-nul 5184 ax-pow 5243 ax-pr 5307 ax-un 7501 ax-cnex 10750 ax-resscn 10751 ax-pre-lttri 10768 ax-pre-lttrn 10769 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2073 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2728 df-clel 2809 df-nfc 2879 df-ne 2933 df-nel 3037 df-ral 3056 df-rex 3057 df-rab 3060 df-v 3400 df-sbc 3684 df-csb 3799 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-nul 4224 df-if 4426 df-pw 4501 df-sn 4528 df-pr 4530 df-op 4534 df-uni 4806 df-iun 4892 df-br 5040 df-opab 5102 df-mpt 5121 df-id 5440 df-po 5453 df-so 5454 df-xp 5542 df-rel 5543 df-cnv 5544 df-co 5545 df-dm 5546 df-rn 5547 df-res 5548 df-ima 5549 df-iota 6316 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-fv 6366 df-ov 7194 df-oprab 7195 df-mpo 7196 df-1st 7739 df-2nd 7740 df-er 8369 df-en 8605 df-dom 8606 df-sdom 8607 df-pnf 10834 df-mnf 10835 df-xr 10836 df-ltxr 10837 df-le 10838 df-ioo 12904 |
This theorem is referenced by: tgqioo 23651 ioorcl2 24423 itgsplitioo 24689 ditgcl 24709 ditgswap 24710 ditgsplitlem 24711 dvferm2lem 24837 dvferm 24839 dvlip 24844 dvgt0lem1 24853 dvivthlem1 24859 lhop1lem 24864 lhop1 24865 dvcvx 24871 dvfsumle 24872 dvfsumge 24873 dvfsumabs 24874 ftc1lem1 24886 ftc1lem2 24887 ftc1a 24888 ftc1lem4 24890 ftc2 24895 ftc2ditglem 24896 itgsubstlem 24899 cos0pilt1 25375 ftc1anc 35544 ftc2nc 35545 limcresioolb 42802 fourierdlem46 43311 fourierdlem48 43313 fourierdlem49 43314 fourierdlem75 43340 fourierdlem103 43368 fourierdlem113 43378 fouriersw 43390 |
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