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Mirrors > Home > MPE Home > Th. List > iocssre | Structured version Visualization version GIF version |
Description: A closed-above interval with real upper bound is a set of reals. (Contributed by FL, 29-May-2014.) |
Ref | Expression |
---|---|
iocssre | ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ) → (𝐴(,]𝐵) ⊆ ℝ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elioc2 13142 | . . . . 5 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ) → (𝑥 ∈ (𝐴(,]𝐵) ↔ (𝑥 ∈ ℝ ∧ 𝐴 < 𝑥 ∧ 𝑥 ≤ 𝐵))) | |
2 | 1 | biimp3a 1468 | . . . 4 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ ∧ 𝑥 ∈ (𝐴(,]𝐵)) → (𝑥 ∈ ℝ ∧ 𝐴 < 𝑥 ∧ 𝑥 ≤ 𝐵)) |
3 | 2 | simp1d 1141 | . . 3 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ ∧ 𝑥 ∈ (𝐴(,]𝐵)) → 𝑥 ∈ ℝ) |
4 | 3 | 3expia 1120 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ) → (𝑥 ∈ (𝐴(,]𝐵) → 𝑥 ∈ ℝ)) |
5 | 4 | ssrdv 3927 | 1 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ) → (𝐴(,]𝐵) ⊆ ℝ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 ∧ w3a 1086 ∈ wcel 2106 ⊆ wss 3887 class class class wbr 5074 (class class class)co 7275 ℝcr 10870 ℝ*cxr 11008 < clt 11009 ≤ cle 11010 (,]cioc 13080 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 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 2709 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-pre-lttri 10945 ax-pre-lttrn 10946 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-br 5075 df-opab 5137 df-mpt 5158 df-id 5489 df-po 5503 df-so 5504 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-ov 7278 df-oprab 7279 df-mpo 7280 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-ioc 13084 |
This theorem is referenced by: iocmnfcld 23932 lhop1 25178 negpitopissre 25696 eff1o 25705 dvlog2lem 25807 iocopn 43058 limcicciooub 43178 limcresiooub 43183 fourierdlem19 43667 fourierdlem33 43681 fourierdlem37 43685 fourierdlem46 43693 fourierdlem48 43695 fourierdlem49 43696 fourierdlem51 43698 fourierdlem63 43710 fourierdlem79 43726 fourierdlem89 43736 fourierdlem90 43737 fourierdlem91 43738 fourierdlem93 43740 fouriersw 43772 |
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