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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 12802 | . . . . 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 3973 | 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 3936 class class class wbr 5066 (class class class)co 7156 ℝcr 10536 ≤ cle 10676 [,]cicc 12742 |
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 2793 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-cnex 10593 ax-resscn 10594 ax-pre-lttri 10611 ax-pre-lttrn 10612 |
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 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4839 df-br 5067 df-opab 5129 df-mpt 5147 df-id 5460 df-po 5474 df-so 5475 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-ov 7159 df-oprab 7160 df-mpo 7161 df-er 8289 df-en 8510 df-dom 8511 df-sdom 8512 df-pnf 10677 df-mnf 10678 df-xr 10679 df-ltxr 10680 df-le 10681 df-icc 12746 |
This theorem is referenced by: iccsupr 12831 iccsplit 12872 iccshftri 12874 iccshftli 12876 iccdili 12878 icccntri 12880 unitssre 12886 supicc 12887 supiccub 12888 supicclub 12889 icccld 23375 iccntr 23429 icccmplem2 23431 icccmplem3 23432 icccmp 23433 retopconn 23437 iccconn 23438 cnmpopc 23532 iihalf1cn 23536 iihalf2cn 23538 icoopnst 23543 iocopnst 23544 icchmeo 23545 xrhmeo 23550 icccvx 23554 cnheiborlem 23558 htpycc 23584 pcocn 23621 pcohtpylem 23623 pcopt 23626 pcopt2 23627 pcoass 23628 pcorevlem 23630 ivthlem2 24053 ivthlem3 24054 ivthicc 24059 evthicc 24060 ovolficcss 24070 ovolicc1 24117 ovolicc2 24123 ovolicc 24124 iccmbl 24167 ovolioo 24169 dyadss 24195 volcn 24207 volivth 24208 vitalilem2 24210 vitalilem4 24212 mbfimaicc 24232 mbfi1fseqlem4 24319 itgioo 24416 rollelem 24586 rolle 24587 cmvth 24588 mvth 24589 dvlip 24590 c1liplem1 24593 c1lip1 24594 c1lip3 24596 dvgt0lem1 24599 dvgt0lem2 24600 dvgt0 24601 dvlt0 24602 dvge0 24603 dvle 24604 dvivthlem1 24605 dvivth 24607 dvne0 24608 lhop1lem 24610 dvcvx 24617 dvfsumle 24618 dvfsumge 24619 dvfsumabs 24620 ftc1lem1 24632 ftc1a 24634 ftc1lem4 24636 ftc1lem5 24637 ftc1lem6 24638 ftc1 24639 ftc1cn 24640 ftc2 24641 ftc2ditglem 24642 ftc2ditg 24643 itgparts 24644 itgsubstlem 24645 aalioulem3 24923 reeff1olem 25034 efcvx 25037 pilem3 25041 pige3ALT 25105 sinord 25118 recosf1o 25119 resinf1o 25120 efif1olem4 25129 asinrecl 25480 acosrecl 25481 emre 25583 pntlem3 26185 ttgcontlem1 26671 signsply0 31821 iblidicc 31863 ftc2re 31869 iccsconn 32495 iccllysconn 32497 cvmliftlem10 32541 ivthALT 33683 sin2h 34897 cos2h 34898 mblfinlem2 34945 ftc1cnnclem 34980 ftc1cnnc 34981 ftc1anclem7 34988 ftc1anc 34990 ftc2nc 34991 areacirclem2 34998 areacirclem3 34999 areacirclem4 35000 areacirc 35002 iccbnd 35133 icccmpALT 35134 itgpowd 39841 arearect 39842 areaquad 39843 lhe4.4ex1a 40681 lefldiveq 41579 iccssred 41800 itgsin0pilem1 42255 ibliccsinexp 42256 iblioosinexp 42258 itgsinexplem1 42259 itgsinexp 42260 iblspltprt 42278 fourierdlem5 42417 fourierdlem9 42421 fourierdlem18 42430 fourierdlem24 42436 fourierdlem62 42473 fourierdlem66 42477 fourierdlem74 42485 fourierdlem75 42486 fourierdlem83 42494 fourierdlem87 42498 fourierdlem93 42504 fourierdlem95 42506 fourierdlem102 42513 fourierdlem103 42514 fourierdlem104 42515 fourierdlem112 42523 fourierdlem114 42525 sqwvfoura 42533 sqwvfourb 42534 |
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