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Mirrors > Home > MPE Home > Th. List > iccssre | Structured version Visualization version GIF version |
Description: A closed real interval is a set of reals. (Contributed by FL, 6-Jun-2007.) (Proof shortened by Paul Chapman, 21-Jan-2008.) |
Ref | Expression |
---|---|
iccssre | ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴[,]𝐵) ⊆ ℝ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elicc2 12790 | . . . . 5 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝑥 ∈ (𝐴[,]𝐵) ↔ (𝑥 ∈ ℝ ∧ 𝐴 ≤ 𝑥 ∧ 𝑥 ≤ 𝐵))) | |
2 | 1 | biimp3a 1466 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝑥 ∈ (𝐴[,]𝐵)) → (𝑥 ∈ ℝ ∧ 𝐴 ≤ 𝑥 ∧ 𝑥 ≤ 𝐵)) |
3 | 2 | simp1d 1139 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝑥 ∈ (𝐴[,]𝐵)) → 𝑥 ∈ ℝ) |
4 | 3 | 3expia 1118 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝑥 ∈ (𝐴[,]𝐵) → 𝑥 ∈ ℝ)) |
5 | 4 | ssrdv 3921 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴[,]𝐵) ⊆ ℝ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 ∧ w3a 1084 ∈ wcel 2111 ⊆ wss 3881 class class class wbr 5030 (class class class)co 7135 ℝcr 10525 ≤ cle 10665 [,]cicc 12729 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-sep 5167 ax-nul 5174 ax-pow 5231 ax-pr 5295 ax-un 7441 ax-cnex 10582 ax-resscn 10583 ax-pre-lttri 10600 ax-pre-lttrn 10601 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3or 1085 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ne 2988 df-nel 3092 df-ral 3111 df-rex 3112 df-rab 3115 df-v 3443 df-sbc 3721 df-csb 3829 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-nul 4244 df-if 4426 df-pw 4499 df-sn 4526 df-pr 4528 df-op 4532 df-uni 4801 df-br 5031 df-opab 5093 df-mpt 5111 df-id 5425 df-po 5438 df-so 5439 df-xp 5525 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-rn 5530 df-res 5531 df-ima 5532 df-iota 6283 df-fun 6326 df-fn 6327 df-f 6328 df-f1 6329 df-fo 6330 df-f1o 6331 df-fv 6332 df-ov 7138 df-oprab 7139 df-mpo 7140 df-er 8272 df-en 8493 df-dom 8494 df-sdom 8495 df-pnf 10666 df-mnf 10667 df-xr 10668 df-ltxr 10669 df-le 10670 df-icc 12733 |
This theorem is referenced by: iccssred 12812 iccsupr 12820 iccsplit 12863 iccshftri 12865 iccshftli 12867 iccdili 12869 icccntri 12871 unitssre 12877 supicc 12879 supiccub 12880 supicclub 12881 icccld 23372 iccntr 23426 icccmplem2 23428 icccmplem3 23429 icccmp 23430 retopconn 23434 iccconn 23435 cnmpopc 23533 iihalf1cn 23537 iihalf2cn 23539 icoopnst 23544 iocopnst 23545 icchmeo 23546 xrhmeo 23551 icccvx 23555 cnheiborlem 23559 htpycc 23585 pcocn 23622 pcohtpylem 23624 pcopt 23627 pcopt2 23628 pcoass 23629 pcorevlem 23631 ivthlem2 24056 ivthlem3 24057 ivthicc 24062 evthicc 24063 ovolficcss 24073 ovolicc1 24120 ovolicc2 24126 ovolicc 24127 iccmbl 24170 ovolioo 24172 dyadss 24198 volcn 24210 volivth 24211 vitalilem2 24213 vitalilem4 24215 mbfimaicc 24235 mbfi1fseqlem4 24322 itgioo 24419 rollelem 24592 rolle 24593 cmvth 24594 mvth 24595 dvlip 24596 c1liplem1 24599 c1lip1 24600 c1lip3 24602 dvgt0lem1 24605 dvgt0lem2 24606 dvgt0 24607 dvlt0 24608 dvge0 24609 dvle 24610 dvivthlem1 24611 dvivth 24613 dvne0 24614 lhop1lem 24616 dvcvx 24623 dvfsumle 24624 dvfsumge 24625 dvfsumabs 24626 ftc1lem1 24638 ftc1a 24640 ftc1lem4 24642 ftc1lem5 24643 ftc1lem6 24644 ftc1 24645 ftc1cn 24646 ftc2 24647 ftc2ditglem 24648 ftc2ditg 24649 itgparts 24650 itgsubstlem 24651 itgpowd 24653 aalioulem3 24930 reeff1olem 25041 efcvx 25044 pilem3 25048 pige3ALT 25112 sinord 25126 recosf1o 25127 resinf1o 25128 efif1olem4 25137 asinrecl 25488 acosrecl 25489 emre 25591 pntlem3 26193 ttgcontlem1 26679 signsply0 31931 iblidicc 31973 ftc2re 31979 iccsconn 32608 iccllysconn 32610 cvmliftlem10 32654 ivthALT 33796 sin2h 35047 cos2h 35048 mblfinlem2 35095 ftc1cnnclem 35128 ftc1cnnc 35129 ftc1anclem7 35136 ftc1anc 35138 ftc2nc 35139 areacirclem2 35146 areacirclem3 35147 areacirclem4 35148 areacirc 35150 iccbnd 35278 icccmpALT 35279 arearect 40165 areaquad 40166 lhe4.4ex1a 41033 lefldiveq 41924 itgsin0pilem1 42592 ibliccsinexp 42593 iblioosinexp 42595 itgsinexplem1 42596 itgsinexp 42597 iblspltprt 42615 fourierdlem5 42754 fourierdlem9 42758 fourierdlem18 42767 fourierdlem24 42773 fourierdlem62 42810 fourierdlem66 42814 fourierdlem74 42822 fourierdlem75 42823 fourierdlem83 42831 fourierdlem87 42835 fourierdlem93 42841 fourierdlem95 42843 fourierdlem102 42850 fourierdlem103 42851 fourierdlem104 42852 fourierdlem112 42860 fourierdlem114 42862 sqwvfoura 42870 sqwvfourb 42871 |
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