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| Mirrors > Home > MPE Home > Th. List > Mathboxes > omeiunlempt | Structured version Visualization version GIF version | ||
| Description: The outer measure of the indexed union of a countable set is the less than or equal to the extended sum of the outer measures. (Contributed by Glauco Siliprandi, 17-Aug-2020.) |
| Ref | Expression |
|---|---|
| omeiunlempt.nph | ⊢ Ⅎ𝑛𝜑 |
| omeiunlempt.o | ⊢ (𝜑 → 𝑂 ∈ OutMeas) |
| omeiunlempt.x | ⊢ 𝑋 = ∪ dom 𝑂 |
| omeiunlempt.z | ⊢ 𝑍 = (ℤ≥‘𝑁) |
| omeiunlempt.e | ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → 𝐸 ⊆ 𝑋) |
| Ref | Expression |
|---|---|
| omeiunlempt | ⊢ (𝜑 → (𝑂‘∪ 𝑛 ∈ 𝑍 𝐸) ≤ (Σ^‘(𝑛 ∈ 𝑍 ↦ (𝑂‘𝐸)))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | omeiunlempt.nph | . . 3 ⊢ Ⅎ𝑛𝜑 | |
| 2 | nfmpt1 5174 | . . 3 ⊢ Ⅎ𝑛(𝑛 ∈ 𝑍 ↦ 𝐸) | |
| 3 | omeiunlempt.o | . . 3 ⊢ (𝜑 → 𝑂 ∈ OutMeas) | |
| 4 | omeiunlempt.x | . . 3 ⊢ 𝑋 = ∪ dom 𝑂 | |
| 5 | omeiunlempt.z | . . 3 ⊢ 𝑍 = (ℤ≥‘𝑁) | |
| 6 | omeiunlempt.e | . . . . 5 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → 𝐸 ⊆ 𝑋) | |
| 7 | 3, 4 | unidmex 45513 | . . . . . . . 8 ⊢ (𝜑 → 𝑋 ∈ V) |
| 8 | 7 | adantr 482 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → 𝑋 ∈ V) |
| 9 | ssexg 5254 | . . . . . . 7 ⊢ ((𝐸 ⊆ 𝑋 ∧ 𝑋 ∈ V) → 𝐸 ∈ V) | |
| 10 | 6, 8, 9 | syl2anc 591 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → 𝐸 ∈ V) |
| 11 | elpwg 4535 | . . . . . 6 ⊢ (𝐸 ∈ V → (𝐸 ∈ 𝒫 𝑋 ↔ 𝐸 ⊆ 𝑋)) | |
| 12 | 10, 11 | syl 17 | . . . . 5 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → (𝐸 ∈ 𝒫 𝑋 ↔ 𝐸 ⊆ 𝑋)) |
| 13 | 6, 12 | mpbird 259 | . . . 4 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → 𝐸 ∈ 𝒫 𝑋) |
| 14 | eqid 2741 | . . . 4 ⊢ (𝑛 ∈ 𝑍 ↦ 𝐸) = (𝑛 ∈ 𝑍 ↦ 𝐸) | |
| 15 | 1, 13, 14 | fmptdf 7062 | . . 3 ⊢ (𝜑 → (𝑛 ∈ 𝑍 ↦ 𝐸):𝑍⟶𝒫 𝑋) |
| 16 | 1, 2, 3, 4, 5, 15 | omeiunle 46974 | . 2 ⊢ (𝜑 → (𝑂‘∪ 𝑛 ∈ 𝑍 ((𝑛 ∈ 𝑍 ↦ 𝐸)‘𝑛)) ≤ (Σ^‘(𝑛 ∈ 𝑍 ↦ (𝑂‘((𝑛 ∈ 𝑍 ↦ 𝐸)‘𝑛))))) |
| 17 | simpr 486 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → 𝑛 ∈ 𝑍) | |
| 18 | 14 | fvmpt2 6951 | . . . . . . 7 ⊢ ((𝑛 ∈ 𝑍 ∧ 𝐸 ∈ V) → ((𝑛 ∈ 𝑍 ↦ 𝐸)‘𝑛) = 𝐸) |
| 19 | 17, 10, 18 | syl2anc 591 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → ((𝑛 ∈ 𝑍 ↦ 𝐸)‘𝑛) = 𝐸) |
| 20 | 19 | eqcomd 2747 | . . . . 5 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → 𝐸 = ((𝑛 ∈ 𝑍 ↦ 𝐸)‘𝑛)) |
| 21 | 1, 20 | iuneq2df 45510 | . . . 4 ⊢ (𝜑 → ∪ 𝑛 ∈ 𝑍 𝐸 = ∪ 𝑛 ∈ 𝑍 ((𝑛 ∈ 𝑍 ↦ 𝐸)‘𝑛)) |
| 22 | 21 | fveq2d 6835 | . . 3 ⊢ (𝜑 → (𝑂‘∪ 𝑛 ∈ 𝑍 𝐸) = (𝑂‘∪ 𝑛 ∈ 𝑍 ((𝑛 ∈ 𝑍 ↦ 𝐸)‘𝑛))) |
| 23 | 20 | fveq2d 6835 | . . . . 5 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → (𝑂‘𝐸) = (𝑂‘((𝑛 ∈ 𝑍 ↦ 𝐸)‘𝑛))) |
| 24 | 1, 23 | mpteq2da 5167 | . . . 4 ⊢ (𝜑 → (𝑛 ∈ 𝑍 ↦ (𝑂‘𝐸)) = (𝑛 ∈ 𝑍 ↦ (𝑂‘((𝑛 ∈ 𝑍 ↦ 𝐸)‘𝑛)))) |
| 25 | 24 | fveq2d 6835 | . . 3 ⊢ (𝜑 → (Σ^‘(𝑛 ∈ 𝑍 ↦ (𝑂‘𝐸))) = (Σ^‘(𝑛 ∈ 𝑍 ↦ (𝑂‘((𝑛 ∈ 𝑍 ↦ 𝐸)‘𝑛))))) |
| 26 | 22, 25 | breq12d 5088 | . 2 ⊢ (𝜑 → ((𝑂‘∪ 𝑛 ∈ 𝑍 𝐸) ≤ (Σ^‘(𝑛 ∈ 𝑍 ↦ (𝑂‘𝐸))) ↔ (𝑂‘∪ 𝑛 ∈ 𝑍 ((𝑛 ∈ 𝑍 ↦ 𝐸)‘𝑛)) ≤ (Σ^‘(𝑛 ∈ 𝑍 ↦ (𝑂‘((𝑛 ∈ 𝑍 ↦ 𝐸)‘𝑛)))))) |
| 27 | 16, 26 | mpbird 259 | 1 ⊢ (𝜑 → (𝑂‘∪ 𝑛 ∈ 𝑍 𝐸) ≤ (Σ^‘(𝑛 ∈ 𝑍 ↦ (𝑂‘𝐸)))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 397 = wceq 1548 Ⅎwnf 1791 ∈ wcel 2121 Vcvv 3433 ⊆ wss 3885 𝒫 cpw 4532 ∪ cuni 4841 ∪ ciun 4924 class class class wbr 5075 ↦ cmpt 5156 dom cdm 5621 ‘cfv 6489 ≤ cle 11175 ℤ≥cuz 12783 Σ^csumge0 46819 OutMeascome 46946 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-10 2154 ax-11 2170 ax-12 2191 ax-ext 2713 ax-rep 5202 ax-sep 5221 ax-nul 5231 ax-pow 5297 ax-pr 5365 ax-un 7682 ax-inf2 9557 ax-ac2 10380 ax-cnex 11089 ax-resscn 11090 ax-1cn 11091 ax-icn 11092 ax-addcl 11093 ax-addrcl 11094 ax-mulcl 11095 ax-mulrcl 11096 ax-mulcom 11097 ax-addass 11098 ax-mulass 11099 ax-distr 11100 ax-i2m1 11101 ax-1ne0 11102 ax-1rid 11103 ax-rnegex 11104 ax-rrecex 11105 ax-cnre 11106 ax-pre-lttri 11107 ax-pre-lttrn 11108 ax-pre-ltadd 11109 ax-pre-mulgt0 11110 ax-pre-sup 11111 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3or 1094 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-nf 1792 df-sb 2075 df-mo 2545 df-eu 2575 df-clab 2720 df-cleq 2733 df-clel 2816 df-nfc 2890 df-ne 2937 df-nel 3041 df-ral 3056 df-rex 3066 df-rmo 3346 df-reu 3347 df-rab 3394 df-v 3435 df-sbc 3726 df-csb 3834 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-pss 3905 df-nul 4265 df-if 4458 df-pw 4534 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4842 df-int 4881 df-iun 4926 df-br 5076 df-opab 5138 df-mpt 5157 df-tr 5183 df-id 5516 df-eprel 5521 df-po 5529 df-so 5530 df-fr 5574 df-se 5575 df-we 5576 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-rn 5632 df-res 5633 df-ima 5634 df-pred 6256 df-ord 6317 df-on 6318 df-lim 6319 df-suc 6320 df-iota 6445 df-fun 6491 df-fn 6492 df-f 6493 df-f1 6494 df-fo 6495 df-f1o 6496 df-fv 6497 df-isom 6498 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-1st 7935 df-2nd 7936 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-1o 8399 df-oadd 8403 df-omul 8404 df-er 8637 df-map 8769 df-en 8888 df-dom 8889 df-sdom 8890 df-fin 8891 df-sup 9349 df-oi 9419 df-card 9858 df-acn 9861 df-ac 10033 df-pnf 11176 df-mnf 11177 df-xr 11178 df-ltxr 11179 df-le 11180 df-sub 11374 df-neg 11375 df-div 11803 df-nn 12170 df-2 12239 df-3 12240 df-n0 12433 df-z 12520 df-uz 12784 df-rp 12938 df-ico 13299 df-icc 13300 df-fz 13457 df-fzo 13604 df-seq 13959 df-exp 14019 df-hash 14288 df-cj 15056 df-re 15057 df-im 15058 df-sqrt 15192 df-abs 15193 df-clim 15445 df-sum 15644 df-sumge0 46820 df-ome 46947 |
| This theorem is referenced by: (None) |
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