| Mathbox for Glauco Siliprandi |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > vonxrcl | Structured version Visualization version GIF version | ||
| Description: The Lebesgue measure of a set is an extended real. (Contributed by Glauco Siliprandi, 8-Apr-2021.) |
| Ref | Expression |
|---|---|
| vonxrcl.x | ⊢ (𝜑 → 𝑋 ∈ Fin) |
| vonxrcl.s | ⊢ 𝑆 = dom (voln‘𝑋) |
| vonxrcl.a | ⊢ (𝜑 → 𝐴 ∈ 𝑆) |
| Ref | Expression |
|---|---|
| vonxrcl | ⊢ (𝜑 → ((voln‘𝑋)‘𝐴) ∈ ℝ*) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | iccssxr 13444 | . 2 ⊢ (0[,]+∞) ⊆ ℝ* | |
| 2 | vonxrcl.x | . . 3 ⊢ (𝜑 → 𝑋 ∈ Fin) | |
| 3 | vonxrcl.s | . . 3 ⊢ 𝑆 = dom (voln‘𝑋) | |
| 4 | vonxrcl.a | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑆) | |
| 5 | 2, 3, 4 | voncl 47231 | . 2 ⊢ (𝜑 → ((voln‘𝑋)‘𝐴) ∈ (0[,]+∞)) |
| 6 | 1, 5 | sselid 3935 | 1 ⊢ (𝜑 → ((voln‘𝑋)‘𝐴) ∈ ℝ*) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1561 ∈ wcel 2143 dom cdm 5648 ‘cfv 6521 (class class class)co 7396 Fincfn 8927 0cc0 11084 +∞cpnf 11224 ℝ*cxr 11226 [,]cicc 13362 volncvoln 47103 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1816 ax-4 1830 ax-5 1931 ax-6 1988 ax-7 2029 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-rep 5228 ax-sep 5247 ax-nul 5257 ax-pow 5323 ax-pr 5391 ax-un 7718 ax-inf2 9594 ax-cc 10403 ax-ac2 10431 ax-cnex 11140 ax-resscn 11141 ax-1cn 11142 ax-icn 11143 ax-addcl 11144 ax-addrcl 11145 ax-mulcl 11146 ax-mulrcl 11147 ax-mulcom 11148 ax-addass 11149 ax-mulass 11150 ax-distr 11151 ax-i2m1 11152 ax-1ne0 11153 ax-1rid 11154 ax-rnegex 11155 ax-rrecex 11156 ax-cnre 11157 ax-pre-lttri 11158 ax-pre-lttrn 11159 ax-pre-ltadd 11160 ax-pre-mulgt0 11161 ax-pre-sup 11162 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1100 df-3an 1101 df-tru 1564 df-fal 1574 df-ex 1801 df-nf 1805 df-sb 2092 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3063 df-ral 3078 df-rex 3088 df-rmo 3368 df-reu 3369 df-rab 3416 df-v 3457 df-sbc 3746 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-pss 3925 df-nul 4287 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-int 4907 df-iun 4952 df-disj 5069 df-br 5102 df-opab 5164 df-mpt 5183 df-tr 5209 df-id 5543 df-eprel 5548 df-po 5556 df-so 5557 df-fr 5601 df-se 5602 df-we 5603 df-xp 5654 df-rel 5655 df-cnv 5656 df-co 5657 df-dm 5658 df-rn 5659 df-res 5660 df-ima 5661 df-pred 6288 df-ord 6349 df-on 6350 df-lim 6351 df-suc 6352 df-iota 6477 df-fun 6523 df-fn 6524 df-f 6525 df-f1 6526 df-fo 6527 df-f1o 6528 df-fv 6529 df-isom 6530 df-riota 7353 df-ov 7399 df-oprab 7400 df-mpo 7401 df-of 7660 df-om 7847 df-1st 7970 df-2nd 7971 df-frecs 8262 df-wrecs 8293 df-recs 8342 df-rdg 8381 df-1o 8437 df-2o 8438 df-oadd 8441 df-omul 8442 df-er 8678 df-map 8810 df-pm 8811 df-ixp 8880 df-en 8928 df-dom 8929 df-sdom 8930 df-fin 8931 df-fi 9355 df-sup 9386 df-inf 9387 df-oi 9456 df-dju 9871 df-card 9909 df-acn 9912 df-ac 10084 df-pnf 11229 df-mnf 11230 df-xr 11231 df-ltxr 11232 df-le 11233 df-sub 11427 df-neg 11428 df-div 11856 df-nn 12221 df-2 12290 df-3 12291 df-n0 12492 df-z 12579 df-uz 12850 df-q 12960 df-rp 13004 df-xneg 13124 df-xadd 13125 df-xmul 13126 df-ioo 13363 df-ico 13365 df-icc 13366 df-fz 13523 df-fzo 13670 df-fl 13812 df-seq 14025 df-exp 14085 df-hash 14354 df-cj 15136 df-re 15137 df-im 15138 df-sqrt 15272 df-abs 15273 df-clim 15525 df-rlim 15526 df-sum 15724 df-prod 15944 df-rest 17461 df-topgen 17482 df-psmet 21423 df-xmet 21424 df-met 21425 df-bl 21426 df-mopn 21427 df-top 22961 df-topon 22978 df-bases 23013 df-cmp 23454 df-ovol 25533 df-vol 25534 df-salg 46874 df-sumge0 46928 df-mea 47015 df-ome 47055 df-caragen 47057 df-ovoln 47102 df-voln 47104 |
| This theorem is referenced by: (None) |
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