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| Mirrors > Home > MPE Home > Th. List > icossre | Structured version Visualization version GIF version | ||
| Description: A closed-below interval with real lower bound is a set of reals. (Contributed by Mario Carneiro, 14-Jun-2014.) |
| Ref | Expression |
|---|---|
| icossre | ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ*) → (𝐴[,)𝐵) ⊆ ℝ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elico2 13453 | . . . . 5 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ*) → (𝑥 ∈ (𝐴[,)𝐵) ↔ (𝑥 ∈ ℝ ∧ 𝐴 ≤ 𝑥 ∧ 𝑥 < 𝐵))) | |
| 2 | 1 | biimp3a 1498 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ* ∧ 𝑥 ∈ (𝐴[,)𝐵)) → (𝑥 ∈ ℝ ∧ 𝐴 ≤ 𝑥 ∧ 𝑥 < 𝐵)) |
| 3 | 2 | simp1d 1160 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ* ∧ 𝑥 ∈ (𝐴[,)𝐵)) → 𝑥 ∈ ℝ) |
| 4 | 3 | 3expia 1139 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ*) → (𝑥 ∈ (𝐴[,)𝐵) → 𝑥 ∈ ℝ)) |
| 5 | 4 | ssrdv 3944 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ*) → (𝐴[,)𝐵) ⊆ ℝ) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∧ w3a 1103 ∈ wcel 2146 ⊆ wss 3906 class class class wbr 5111 (class class class)co 7419 ℝcr 11114 ℝ*cxr 11257 < clt 11258 ≤ cle 11259 [,)cico 13390 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7742 ax-cnex 11171 ax-resscn 11172 ax-pre-lttri 11189 ax-pre-lttrn 11190 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3067 df-ral 3082 df-rex 3092 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-br 5112 df-opab 5176 df-mpt 5195 df-id 5558 df-po 5571 df-so 5572 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-ov 7422 df-oprab 7423 df-mpo 7424 df-er 8700 df-en 8950 df-dom 8951 df-sdom 8952 df-pnf 11260 df-mnf 11261 df-xr 11262 df-ltxr 11263 df-le 11264 df-ico 13394 |
| This theorem is used by: icoshftf1o 13517 ico01fl0 13870 rexico 15429 rlim3 15573 fprodge1 16072 ovolicopnf 25734 dvfsumrlim2 26242 tanord1 26753 chebbnd1 27687 chebbnd2 27692 dchrisumlem3 27706 pntpbnd1 27801 pntibndlem2 27806 sxbrsigalem0 34726 dya2iocress 34729 dya2iocucvr 34739 sitmcl 34806 tan2h 38320 icoopn 46299 limciccioolb 46395 ltmod 46410 limcresioolb 46415 limsupresre 46468 limsupresico 46472 liminfresico 46543 fourierdlem32 46911 fourierdlem46 46924 fourierdlem48 46926 fourierdlem93 46971 fouriersw 47003 fouriercn 47004 hoissre 47316 hoissrrn2 47350 hoidmv1lelem2 47364 ovnlecvr2 47382 hspdifhsp 47388 hoiqssbllem2 47395 hspmbllem2 47399 iinhoiicclem 47445 |
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