Mathbox for Glauco Siliprandi |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > ioovonmbl | Structured version Visualization version GIF version |
Description: Any n-dimensional open interval is Lebesgue measurable. This is the first statement in Proposition 115G (c) of [Fremlin1] p. 32. (Contributed by Glauco Siliprandi, 8-Apr-2021.) |
Ref | Expression |
---|---|
ioovonmbl.x | ⊢ (𝜑 → 𝑋 ∈ Fin) |
ioovonmbl.s | ⊢ 𝑆 = dom (voln‘𝑋) |
ioovonmbl.a | ⊢ (𝜑 → 𝐴:𝑋⟶ℝ*) |
ioovonmbl.b | ⊢ (𝜑 → 𝐵:𝑋⟶ℝ*) |
Ref | Expression |
---|---|
ioovonmbl | ⊢ (𝜑 → X𝑖 ∈ 𝑋 ((𝐴‘𝑖)(,)(𝐵‘𝑖)) ∈ 𝑆) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ioovonmbl.x | . 2 ⊢ (𝜑 → 𝑋 ∈ Fin) | |
2 | ioovonmbl.s | . 2 ⊢ 𝑆 = dom (voln‘𝑋) | |
3 | ioovonmbl.a | . . 3 ⊢ (𝜑 → 𝐴:𝑋⟶ℝ*) | |
4 | ioovonmbl.b | . . 3 ⊢ (𝜑 → 𝐵:𝑋⟶ℝ*) | |
5 | 1, 3, 4 | ioorrnopnxr 43343 | . 2 ⊢ (𝜑 → X𝑖 ∈ 𝑋 ((𝐴‘𝑖)(,)(𝐵‘𝑖)) ∈ (TopOpen‘(ℝ^‘𝑋))) |
6 | 1, 2, 5 | opnvonmbl 43667 | 1 ⊢ (𝜑 → X𝑖 ∈ 𝑋 ((𝐴‘𝑖)(,)(𝐵‘𝑖)) ∈ 𝑆) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1538 ∈ wcel 2111 dom cdm 5527 ⟶wf 6335 ‘cfv 6339 (class class class)co 7155 Xcixp 8484 Fincfn 8532 ℝ*cxr 10717 (,)cioo 12784 volncvoln 43571 |
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 2729 ax-rep 5159 ax-sep 5172 ax-nul 5179 ax-pow 5237 ax-pr 5301 ax-un 7464 ax-inf2 9142 ax-cc 9900 ax-ac2 9928 ax-cnex 10636 ax-resscn 10637 ax-1cn 10638 ax-icn 10639 ax-addcl 10640 ax-addrcl 10641 ax-mulcl 10642 ax-mulrcl 10643 ax-mulcom 10644 ax-addass 10645 ax-mulass 10646 ax-distr 10647 ax-i2m1 10648 ax-1ne0 10649 ax-1rid 10650 ax-rnegex 10651 ax-rrecex 10652 ax-cnre 10653 ax-pre-lttri 10654 ax-pre-lttrn 10655 ax-pre-ltadd 10656 ax-pre-mulgt0 10657 ax-pre-sup 10658 ax-addf 10659 ax-mulf 10660 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3or 1085 df-3an 1086 df-tru 1541 df-fal 1551 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2557 df-eu 2588 df-clab 2736 df-cleq 2750 df-clel 2830 df-nfc 2901 df-ne 2952 df-nel 3056 df-ral 3075 df-rex 3076 df-reu 3077 df-rmo 3078 df-rab 3079 df-v 3411 df-sbc 3699 df-csb 3808 df-dif 3863 df-un 3865 df-in 3867 df-ss 3877 df-pss 3879 df-nul 4228 df-if 4424 df-pw 4499 df-sn 4526 df-pr 4528 df-tp 4530 df-op 4532 df-uni 4802 df-int 4842 df-iun 4888 df-iin 4889 df-disj 5001 df-br 5036 df-opab 5098 df-mpt 5116 df-tr 5142 df-id 5433 df-eprel 5438 df-po 5446 df-so 5447 df-fr 5486 df-se 5487 df-we 5488 df-xp 5533 df-rel 5534 df-cnv 5535 df-co 5536 df-dm 5537 df-rn 5538 df-res 5539 df-ima 5540 df-pred 6130 df-ord 6176 df-on 6177 df-lim 6178 df-suc 6179 df-iota 6298 df-fun 6341 df-fn 6342 df-f 6343 df-f1 6344 df-fo 6345 df-f1o 6346 df-fv 6347 df-isom 6348 df-riota 7113 df-ov 7158 df-oprab 7159 df-mpo 7160 df-of 7410 df-om 7585 df-1st 7698 df-2nd 7699 df-supp 7841 df-tpos 7907 df-wrecs 7962 df-recs 8023 df-rdg 8061 df-1o 8117 df-2o 8118 df-oadd 8121 df-omul 8122 df-er 8304 df-map 8423 df-pm 8424 df-ixp 8485 df-en 8533 df-dom 8534 df-sdom 8535 df-fin 8536 df-fsupp 8872 df-fi 8913 df-sup 8944 df-inf 8945 df-oi 9012 df-dju 9368 df-card 9406 df-acn 9409 df-ac 9581 df-pnf 10720 df-mnf 10721 df-xr 10722 df-ltxr 10723 df-le 10724 df-sub 10915 df-neg 10916 df-div 11341 df-nn 11680 df-2 11742 df-3 11743 df-4 11744 df-5 11745 df-6 11746 df-7 11747 df-8 11748 df-9 11749 df-n0 11940 df-z 12026 df-dec 12143 df-uz 12288 df-q 12394 df-rp 12436 df-xneg 12553 df-xadd 12554 df-xmul 12555 df-ioo 12788 df-ico 12790 df-icc 12791 df-fz 12945 df-fzo 13088 df-fl 13216 df-seq 13424 df-exp 13485 df-hash 13746 df-cj 14511 df-re 14512 df-im 14513 df-sqrt 14647 df-abs 14648 df-clim 14898 df-rlim 14899 df-sum 15096 df-prod 15313 df-struct 16548 df-ndx 16549 df-slot 16550 df-base 16552 df-sets 16553 df-ress 16554 df-plusg 16641 df-mulr 16642 df-starv 16643 df-sca 16644 df-vsca 16645 df-ip 16646 df-tset 16647 df-ple 16648 df-ds 16650 df-unif 16651 df-hom 16652 df-cco 16653 df-rest 16759 df-topn 16760 df-0g 16778 df-gsum 16779 df-topgen 16780 df-prds 16784 df-pws 16786 df-mgm 17923 df-sgrp 17972 df-mnd 17983 df-mhm 18027 df-submnd 18028 df-grp 18177 df-minusg 18178 df-sbg 18179 df-subg 18348 df-ghm 18428 df-cntz 18519 df-cmn 18980 df-abl 18981 df-mgp 19313 df-ur 19325 df-ring 19372 df-cring 19373 df-oppr 19449 df-dvdsr 19467 df-unit 19468 df-invr 19498 df-dvr 19509 df-rnghom 19543 df-drng 19577 df-field 19578 df-subrg 19606 df-abv 19661 df-staf 19689 df-srng 19690 df-lmod 19709 df-lss 19777 df-lmhm 19867 df-lvec 19948 df-sra 20017 df-rgmod 20018 df-psmet 20163 df-xmet 20164 df-met 20165 df-bl 20166 df-mopn 20167 df-cnfld 20172 df-refld 20375 df-phl 20396 df-dsmm 20502 df-frlm 20517 df-top 21599 df-topon 21616 df-topsp 21638 df-bases 21651 df-cmp 22092 df-xms 23027 df-ms 23028 df-nm 23289 df-ngp 23290 df-tng 23291 df-nrg 23292 df-nlm 23293 df-clm 23769 df-cph 23874 df-tcph 23875 df-rrx 24090 df-ovol 24169 df-vol 24170 df-salg 43345 df-sumge0 43396 df-mea 43483 df-ome 43523 df-caragen 43525 df-ovoln 43570 df-voln 43572 |
This theorem is referenced by: iccvonmbllem 43711 vonioolem2 43714 vonioo 43715 |
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