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| Mirrors > Home > MPE Home > Th. List > Mathboxes > caragenunidm | Structured version Visualization version GIF version | ||
| Description: The base set of an outer measure belongs to the sigma-algebra generated by the Caratheodory's construction. (Contributed by Glauco Siliprandi, 17-Aug-2020.) |
| Ref | Expression |
|---|---|
| caragenunidm.o | ⊢ (𝜑 → 𝑂 ∈ OutMeas) |
| caragenunidm.x | ⊢ 𝑋 = ∪ dom 𝑂 |
| caragenunidm.s | ⊢ 𝑆 = (CaraGen‘𝑂) |
| Ref | Expression |
|---|---|
| caragenunidm | ⊢ (𝜑 → 𝑋 ∈ 𝑆) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | caragenunidm.o | . 2 ⊢ (𝜑 → 𝑂 ∈ OutMeas) | |
| 2 | caragenunidm.x | . 2 ⊢ 𝑋 = ∪ dom 𝑂 | |
| 3 | caragenunidm.s | . 2 ⊢ 𝑆 = (CaraGen‘𝑂) | |
| 4 | dmexg 7937 | . . . . 5 ⊢ (𝑂 ∈ OutMeas → dom 𝑂 ∈ V) | |
| 5 | uniexg 7781 | . . . . 5 ⊢ (dom 𝑂 ∈ V → ∪ dom 𝑂 ∈ V) | |
| 6 | 1, 4, 5 | 3syl 19 | . . . 4 ⊢ (𝜑 → ∪ dom 𝑂 ∈ V) |
| 7 | 2, 6 | eqeltrid 2868 | . . 3 ⊢ (𝜑 → 𝑋 ∈ V) |
| 8 | pwidg 4581 | . . 3 ⊢ (𝑋 ∈ V → 𝑋 ∈ 𝒫 𝑋) | |
| 9 | 7, 8 | syl 18 | . 2 ⊢ (𝜑 → 𝑋 ∈ 𝒫 𝑋) |
| 10 | elpwi 4567 | . . . . . . 7 ⊢ (𝑎 ∈ 𝒫 𝑋 → 𝑎 ⊆ 𝑋) | |
| 11 | dfss2 4097 | . . . . . . . 8 ⊢ (𝑎 ⊆ 𝑋 ↔ (𝑎 ∩ 𝑋) = 𝑎) | |
| 12 | 11 | biimpi 219 | . . . . . . 7 ⊢ (𝑎 ⊆ 𝑋 → (𝑎 ∩ 𝑋) = 𝑎) |
| 13 | 10, 12 | syl 18 | . . . . . 6 ⊢ (𝑎 ∈ 𝒫 𝑋 → (𝑎 ∩ 𝑋) = 𝑎) |
| 14 | 13 | fveq2d 6912 | . . . . 5 ⊢ (𝑎 ∈ 𝒫 𝑋 → (𝑂‘(𝑎 ∩ 𝑋)) = (𝑂‘𝑎)) |
| 15 | 14 | adantl 487 | . . . 4 ⊢ ((𝜑 ∧ 𝑎 ∈ 𝒫 𝑋) → (𝑂‘(𝑎 ∩ 𝑋)) = (𝑂‘𝑎)) |
| 16 | ssdif0 4317 | . . . . . . . 8 ⊢ (𝑎 ⊆ 𝑋 ↔ (𝑎 ∖ 𝑋) = ∅) | |
| 17 | 10, 16 | sylib 221 | . . . . . . 7 ⊢ (𝑎 ∈ 𝒫 𝑋 → (𝑎 ∖ 𝑋) = ∅) |
| 18 | 17 | fveq2d 6912 | . . . . . 6 ⊢ (𝑎 ∈ 𝒫 𝑋 → (𝑂‘(𝑎 ∖ 𝑋)) = (𝑂‘∅)) |
| 19 | 18 | adantl 487 | . . . . 5 ⊢ ((𝜑 ∧ 𝑎 ∈ 𝒫 𝑋) → (𝑂‘(𝑎 ∖ 𝑋)) = (𝑂‘∅)) |
| 20 | 1 | ome0 47712 | . . . . . 6 ⊢ (𝜑 → (𝑂‘∅) = 0) |
| 21 | 20 | adantr 486 | . . . . 5 ⊢ ((𝜑 ∧ 𝑎 ∈ 𝒫 𝑋) → (𝑂‘∅) = 0) |
| 22 | 19, 21 | eqtrd 2798 | . . . 4 ⊢ ((𝜑 ∧ 𝑎 ∈ 𝒫 𝑋) → (𝑂‘(𝑎 ∖ 𝑋)) = 0) |
| 23 | 15, 22 | oveq12d 7461 | . . 3 ⊢ ((𝜑 ∧ 𝑎 ∈ 𝒫 𝑋) → ((𝑂‘(𝑎 ∩ 𝑋)) +e (𝑂‘(𝑎 ∖ 𝑋))) = ((𝑂‘𝑎) +e 0)) |
| 24 | iccssxr 13588 | . . . . 5 ⊢ (0[,]+∞) ⊆ ℝ* | |
| 25 | 1 | adantr 486 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑎 ∈ 𝒫 𝑋) → 𝑂 ∈ OutMeas) |
| 26 | 10 | adantl 487 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑎 ∈ 𝒫 𝑋) → 𝑎 ⊆ 𝑋) |
| 27 | 25, 2, 26 | omecl 47718 | . . . . 5 ⊢ ((𝜑 ∧ 𝑎 ∈ 𝒫 𝑋) → (𝑂‘𝑎) ∈ (0[,]+∞)) |
| 28 | 24, 27 | sselid 3911 | . . . 4 ⊢ ((𝜑 ∧ 𝑎 ∈ 𝒫 𝑋) → (𝑂‘𝑎) ∈ ℝ*) |
| 29 | 28 | xaddridd 13400 | . . 3 ⊢ ((𝜑 ∧ 𝑎 ∈ 𝒫 𝑋) → ((𝑂‘𝑎) +e 0) = (𝑂‘𝑎)) |
| 30 | eqidd 2764 | . . 3 ⊢ ((𝜑 ∧ 𝑎 ∈ 𝒫 𝑋) → (𝑂‘𝑎) = (𝑂‘𝑎)) | |
| 31 | 23, 29, 30 | 3eqtrd 2802 | . 2 ⊢ ((𝜑 ∧ 𝑎 ∈ 𝒫 𝑋) → ((𝑂‘(𝑎 ∩ 𝑋)) +e (𝑂‘(𝑎 ∖ 𝑋))) = (𝑂‘𝑎)) |
| 32 | 1, 2, 3, 9, 31 | carageneld 47717 | 1 ⊢ (𝜑 → 𝑋 ∈ 𝑆) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2147 Vcvv 3454 ⊆ wss 3900 ∖ cdif 4048 ∩ cin 4092 ∅c0 4281 𝒫 cpw 4560 ∪ cuni 4870 dom cdm 5655 ‘cfv 6558 (class class class)co 7443 0cc0 11227 +∞cpnf 11367 ℝ*cxr 11369 +e cxad 13266 [,]cicc 13506 OutMeascome 47704 CaraGenccaragen 47706 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7775 ax-cnex 11283 ax-resscn 11284 ax-1cn 11285 ax-icn 11286 ax-addcl 11287 ax-addrcl 11288 ax-mulcl 11289 ax-mulrcl 11290 ax-mulcom 11291 ax-addass 11292 ax-mulass 11293 ax-distr 11294 ax-i2m1 11295 ax-1ne0 11296 ax-1rid 11297 ax-rnegex 11298 ax-rrecex 11299 ax-cnre 11300 ax-pre-lttri 11301 ax-pre-lttrn 11302 ax-pre-ltadd 11303 |
| 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 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-iun 4956 df-br 5107 df-opab 5171 df-mpt 5190 df-id 5550 df-po 5563 df-so 5564 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6512 df-fun 6560 df-fn 6561 df-f 6562 df-f1 6563 df-fo 6564 df-f1o 6565 df-fv 6566 df-ov 7446 df-oprab 7447 df-mpo 7448 df-1st 8025 df-2nd 8026 df-er 8745 df-en 9002 df-dom 9003 df-sdom 9004 df-pnf 11372 df-mnf 11373 df-xr 11374 df-ltxr 11375 df-xadd 13269 df-icc 13510 df-ome 47705 df-caragen 47707 |
| This theorem is used by: caragenuni 47726 rrnmbl 47829 |
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