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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 13450 | . . . . 5 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ) → (𝑥 ∈ (𝐴(,]𝐵) ↔ (𝑥 ∈ ℝ ∧ 𝐴 < 𝑥 ∧ 𝑥 ≤ 𝐵))) | |
| 2 | 1 | biimp3a 1471 | . . . 4 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ ∧ 𝑥 ∈ (𝐴(,]𝐵)) → (𝑥 ∈ ℝ ∧ 𝐴 < 𝑥 ∧ 𝑥 ≤ 𝐵)) |
| 3 | 2 | simp1d 1143 | . . 3 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ ∧ 𝑥 ∈ (𝐴(,]𝐵)) → 𝑥 ∈ ℝ) |
| 4 | 3 | 3expia 1122 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ) → (𝑥 ∈ (𝐴(,]𝐵) → 𝑥 ∈ ℝ)) |
| 5 | 4 | ssrdv 3989 | 1 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ) → (𝐴(,]𝐵) ⊆ ℝ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1087 ∈ wcel 2108 ⊆ wss 3951 class class class wbr 5143 (class class class)co 7431 ℝcr 11154 ℝ*cxr 11294 < clt 11295 ≤ cle 11296 (,]cioc 13388 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2157 ax-12 2177 ax-ext 2708 ax-sep 5296 ax-nul 5306 ax-pow 5365 ax-pr 5432 ax-un 7755 ax-cnex 11211 ax-resscn 11212 ax-pre-lttri 11229 ax-pre-lttrn 11230 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2065 df-mo 2540 df-eu 2569 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2892 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rab 3437 df-v 3482 df-sbc 3789 df-csb 3900 df-dif 3954 df-un 3956 df-in 3958 df-ss 3968 df-nul 4334 df-if 4526 df-pw 4602 df-sn 4627 df-pr 4629 df-op 4633 df-uni 4908 df-br 5144 df-opab 5206 df-mpt 5226 df-id 5578 df-po 5592 df-so 5593 df-xp 5691 df-rel 5692 df-cnv 5693 df-co 5694 df-dm 5695 df-rn 5696 df-res 5697 df-ima 5698 df-iota 6514 df-fun 6563 df-fn 6564 df-f 6565 df-f1 6566 df-fo 6567 df-f1o 6568 df-fv 6569 df-ov 7434 df-oprab 7435 df-mpo 7436 df-er 8745 df-en 8986 df-dom 8987 df-sdom 8988 df-pnf 11297 df-mnf 11298 df-xr 11299 df-ltxr 11300 df-le 11301 df-ioc 13392 |
| This theorem is referenced by: iocmnfcld 24789 lhop1 26053 negpitopissre 26582 eff1o 26591 dvlog2lem 26694 iocopn 45533 limcicciooub 45652 limcresiooub 45657 fourierdlem19 46141 fourierdlem33 46155 fourierdlem37 46159 fourierdlem46 46167 fourierdlem48 46169 fourierdlem49 46170 fourierdlem51 46172 fourierdlem63 46184 fourierdlem79 46200 fourierdlem89 46210 fourierdlem90 46211 fourierdlem91 46212 fourierdlem93 46214 fouriersw 46246 |
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