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| Mirrors > Home > MPE Home > Th. List > Mathboxes > vonn0hoi | Structured version Visualization version GIF version | ||
| Description: The Lebesgue outer measure of a multidimensional half-open interval when the dimension of the space is nonzero. (Contributed by Glauco Siliprandi, 8-Apr-2021.) |
| Ref | Expression |
|---|---|
| vonn0hoi.x | ⊢ (𝜑 → 𝑋 ∈ Fin) |
| vonn0hoi.n | ⊢ (𝜑 → 𝑋 ≠ ∅) |
| vonn0hoi.a | ⊢ (𝜑 → 𝐴:𝑋⟶ℝ) |
| vonn0hoi.b | ⊢ (𝜑 → 𝐵:𝑋⟶ℝ) |
| vonn0hoi.i | ⊢ 𝐼 = X𝑘 ∈ 𝑋 ((𝐴‘𝑘)[,)(𝐵‘𝑘)) |
| Ref | Expression |
|---|---|
| vonn0hoi | ⊢ (𝜑 → ((voln‘𝑋)‘𝐼) = ∏𝑘 ∈ 𝑋 (vol‘((𝐴‘𝑘)[,)(𝐵‘𝑘)))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vonn0hoi.x | . . 3 ⊢ (𝜑 → 𝑋 ∈ Fin) | |
| 2 | vonn0hoi.a | . . 3 ⊢ (𝜑 → 𝐴:𝑋⟶ℝ) | |
| 3 | vonn0hoi.b | . . 3 ⊢ (𝜑 → 𝐵:𝑋⟶ℝ) | |
| 4 | vonn0hoi.i | . . 3 ⊢ 𝐼 = X𝑘 ∈ 𝑋 ((𝐴‘𝑘)[,)(𝐵‘𝑘)) | |
| 5 | eqid 2766 | . . 3 ⊢ (𝑥 ∈ Fin ↦ (𝑎 ∈ (ℝ ↑m 𝑥), 𝑏 ∈ (ℝ ↑m 𝑥) ↦ if(𝑥 = ∅, 0, ∏𝑘 ∈ 𝑥 (vol‘((𝑎‘𝑘)[,)(𝑏‘𝑘)))))) = (𝑥 ∈ Fin ↦ (𝑎 ∈ (ℝ ↑m 𝑥), 𝑏 ∈ (ℝ ↑m 𝑥) ↦ if(𝑥 = ∅, 0, ∏𝑘 ∈ 𝑥 (vol‘((𝑎‘𝑘)[,)(𝑏‘𝑘)))))) | |
| 6 | 1, 2, 3, 4, 5 | vonhoi 47413 | . 2 ⊢ (𝜑 → ((voln‘𝑋)‘𝐼) = (𝐴((𝑥 ∈ Fin ↦ (𝑎 ∈ (ℝ ↑m 𝑥), 𝑏 ∈ (ℝ ↑m 𝑥) ↦ if(𝑥 = ∅, 0, ∏𝑘 ∈ 𝑥 (vol‘((𝑎‘𝑘)[,)(𝑏‘𝑘))))))‘𝑋)𝐵)) |
| 7 | vonn0hoi.n | . . 3 ⊢ (𝜑 → 𝑋 ≠ ∅) | |
| 8 | 5, 1, 7, 2, 3 | hoidmvn0val 47330 | . 2 ⊢ (𝜑 → (𝐴((𝑥 ∈ Fin ↦ (𝑎 ∈ (ℝ ↑m 𝑥), 𝑏 ∈ (ℝ ↑m 𝑥) ↦ if(𝑥 = ∅, 0, ∏𝑘 ∈ 𝑥 (vol‘((𝑎‘𝑘)[,)(𝑏‘𝑘))))))‘𝑋)𝐵) = ∏𝑘 ∈ 𝑋 (vol‘((𝐴‘𝑘)[,)(𝐵‘𝑘)))) |
| 9 | 6, 8 | eqtrd 2801 | 1 ⊢ (𝜑 → ((voln‘𝑋)‘𝐼) = ∏𝑘 ∈ 𝑋 (vol‘((𝐴‘𝑘)[,)(𝐵‘𝑘)))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2146 ≠ wne 2961 ∅c0 4289 ifcif 4490 ↦ cmpt 5195 ⟶wf 6536 ‘cfv 6540 (class class class)co 7416 ∈ cmpo 7418 ↑m cmap 8826 Xcixp 8897 Fincfn 8945 ℝcr 11109 0cc0 11110 [,)cico 13384 ∏cprod 15968 volcvol 25637 volncvoln 47284 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2738 ax-rep 5241 ax-sep 5260 ax-nul 5272 ax-pow 5339 ax-pr 5407 ax-un 7738 ax-inf2 9612 ax-cc 10429 ax-ac2 10457 ax-cnex 11166 ax-resscn 11167 ax-1cn 11168 ax-icn 11169 ax-addcl 11170 ax-addrcl 11171 ax-mulcl 11172 ax-mulrcl 11173 ax-mulcom 11174 ax-addass 11175 ax-mulass 11176 ax-distr 11177 ax-i2m1 11178 ax-1ne0 11179 ax-1rid 11180 ax-rnegex 11181 ax-rrecex 11182 ax-cnre 11183 ax-pre-lttri 11184 ax-pre-lttrn 11185 ax-pre-ltadd 11186 ax-pre-mulgt0 11187 ax-pre-sup 11188 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2570 df-eu 2600 df-clab 2745 df-cleq 2758 df-clel 2841 df-nfc 2915 df-ne 2962 df-nel 3068 df-ral 3083 df-rex 3093 df-rmo 3372 df-reu 3373 df-rab 3420 df-v 3460 df-sbc 3748 df-csb 3857 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-pss 3928 df-nul 4290 df-if 4491 df-pw 4567 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4876 df-int 4916 df-iun 4961 df-iin 4962 df-disj 5080 df-br 5113 df-opab 5177 df-mpt 5196 df-tr 5222 df-id 5559 df-eprel 5564 df-po 5572 df-so 5573 df-fr 5617 df-se 5618 df-we 5619 df-xp 5670 df-rel 5671 df-cnv 5672 df-co 5673 df-dm 5674 df-rn 5675 df-res 5676 df-ima 5677 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-isom 6549 df-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-of 7680 df-om 7865 df-1st 7988 df-2nd 7989 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-1o 8455 df-2o 8456 df-oadd 8459 df-omul 8460 df-er 8696 df-map 8828 df-pm 8829 df-ixp 8898 df-en 8946 df-dom 8947 df-sdom 8948 df-fin 8949 df-fi 9373 df-sup 9404 df-inf 9405 df-oi 9474 df-dju 9898 df-card 9936 df-acn 9939 df-ac 10111 df-pnf 11255 df-mnf 11256 df-xr 11257 df-ltxr 11258 df-le 11259 df-sub 11453 df-neg 11454 df-div 11882 df-nn 12244 df-2 12313 df-3 12314 df-n0 12515 df-z 12602 df-uz 12873 df-q 12983 df-rp 13027 df-xneg 13147 df-xadd 13148 df-xmul 13149 df-ioo 13386 df-ico 13388 df-icc 13389 df-fz 13546 df-fzo 13694 df-fl 13836 df-seq 14049 df-exp 14109 df-hash 14378 df-cj 15161 df-re 15162 df-im 15163 df-sqrt 15297 df-abs 15298 df-clim 15550 df-rlim 15551 df-sum 15749 df-prod 15969 df-rest 17485 df-topgen 17506 df-psmet 21529 df-xmet 21530 df-met 21531 df-bl 21532 df-mopn 21533 df-top 23066 df-topon 23083 df-bases 23118 df-cmp 23559 df-ovol 25638 df-vol 25639 df-salg 47055 df-sumge0 47109 df-mea 47196 df-ome 47236 df-caragen 47238 df-ovoln 47283 df-voln 47285 |
| This theorem is used by: vonhoire 47418 vonioolem1 47426 vonicclem1 47429 |
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