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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 12804 | . . . . 5 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝑥 ∈ (𝐴[,]𝐵) ↔ (𝑥 ∈ ℝ ∧ 𝐴 ≤ 𝑥 ∧ 𝑥 ≤ 𝐵))) | |
2 | 1 | biimp3a 1465 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝑥 ∈ (𝐴[,]𝐵)) → (𝑥 ∈ ℝ ∧ 𝐴 ≤ 𝑥 ∧ 𝑥 ≤ 𝐵)) |
3 | 2 | simp1d 1138 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝑥 ∈ (𝐴[,]𝐵)) → 𝑥 ∈ ℝ) |
4 | 3 | 3expia 1117 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝑥 ∈ (𝐴[,]𝐵) → 𝑥 ∈ ℝ)) |
5 | 4 | ssrdv 3975 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴[,]𝐵) ⊆ ℝ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 ∧ w3a 1083 ∈ wcel 2114 ⊆ wss 3938 class class class wbr 5068 (class class class)co 7158 ℝcr 10538 ≤ cle 10678 [,]cicc 12744 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 ax-un 7463 ax-cnex 10595 ax-resscn 10596 ax-pre-lttri 10613 ax-pre-lttrn 10614 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ne 3019 df-nel 3126 df-ral 3145 df-rex 3146 df-rab 3149 df-v 3498 df-sbc 3775 df-csb 3886 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-pw 4543 df-sn 4570 df-pr 4572 df-op 4576 df-uni 4841 df-br 5069 df-opab 5131 df-mpt 5149 df-id 5462 df-po 5476 df-so 5477 df-xp 5563 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-rn 5568 df-res 5569 df-ima 5570 df-iota 6316 df-fun 6359 df-fn 6360 df-f 6361 df-f1 6362 df-fo 6363 df-f1o 6364 df-fv 6365 df-ov 7161 df-oprab 7162 df-mpo 7163 df-er 8291 df-en 8512 df-dom 8513 df-sdom 8514 df-pnf 10679 df-mnf 10680 df-xr 10681 df-ltxr 10682 df-le 10683 df-icc 12748 |
This theorem is referenced by: iccsupr 12833 iccsplit 12874 iccshftri 12876 iccshftli 12878 iccdili 12880 icccntri 12882 unitssre 12888 supicc 12889 supiccub 12890 supicclub 12891 icccld 23377 iccntr 23431 icccmplem2 23433 icccmplem3 23434 icccmp 23435 retopconn 23439 iccconn 23440 cnmpopc 23534 iihalf1cn 23538 iihalf2cn 23540 icoopnst 23545 iocopnst 23546 icchmeo 23547 xrhmeo 23552 icccvx 23556 cnheiborlem 23560 htpycc 23586 pcocn 23623 pcohtpylem 23625 pcopt 23628 pcopt2 23629 pcoass 23630 pcorevlem 23632 ivthlem2 24055 ivthlem3 24056 ivthicc 24061 evthicc 24062 ovolficcss 24072 ovolicc1 24119 ovolicc2 24125 ovolicc 24126 iccmbl 24169 ovolioo 24171 dyadss 24197 volcn 24209 volivth 24210 vitalilem2 24212 vitalilem4 24214 mbfimaicc 24234 mbfi1fseqlem4 24321 itgioo 24418 rollelem 24588 rolle 24589 cmvth 24590 mvth 24591 dvlip 24592 c1liplem1 24595 c1lip1 24596 c1lip3 24598 dvgt0lem1 24601 dvgt0lem2 24602 dvgt0 24603 dvlt0 24604 dvge0 24605 dvle 24606 dvivthlem1 24607 dvivth 24609 dvne0 24610 lhop1lem 24612 dvcvx 24619 dvfsumle 24620 dvfsumge 24621 dvfsumabs 24622 ftc1lem1 24634 ftc1a 24636 ftc1lem4 24638 ftc1lem5 24639 ftc1lem6 24640 ftc1 24641 ftc1cn 24642 ftc2 24643 ftc2ditglem 24644 ftc2ditg 24645 itgparts 24646 itgsubstlem 24647 aalioulem3 24925 reeff1olem 25036 efcvx 25039 pilem3 25043 pige3ALT 25107 sinord 25120 recosf1o 25121 resinf1o 25122 efif1olem4 25131 asinrecl 25482 acosrecl 25483 emre 25585 pntlem3 26187 ttgcontlem1 26673 signsply0 31823 iblidicc 31865 ftc2re 31871 iccsconn 32497 iccllysconn 32499 cvmliftlem10 32543 ivthALT 33685 sin2h 34884 cos2h 34885 mblfinlem2 34932 ftc1cnnclem 34967 ftc1cnnc 34968 ftc1anclem7 34975 ftc1anc 34977 ftc2nc 34978 areacirclem2 34985 areacirclem3 34986 areacirclem4 34987 areacirc 34989 iccbnd 35120 icccmpALT 35121 itgpowd 39828 arearect 39829 areaquad 39830 lhe4.4ex1a 40668 lefldiveq 41566 iccssred 41787 itgsin0pilem1 42242 ibliccsinexp 42243 iblioosinexp 42245 itgsinexplem1 42246 itgsinexp 42247 iblspltprt 42265 fourierdlem5 42404 fourierdlem9 42408 fourierdlem18 42417 fourierdlem24 42423 fourierdlem62 42460 fourierdlem66 42464 fourierdlem74 42472 fourierdlem75 42473 fourierdlem83 42481 fourierdlem87 42485 fourierdlem93 42491 fourierdlem95 42493 fourierdlem102 42500 fourierdlem103 42501 fourierdlem104 42502 fourierdlem112 42510 fourierdlem114 42512 sqwvfoura 42520 sqwvfourb 42521 |
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