Mathbox for Thierry Arnoux |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > elcarsg | Structured version Visualization version GIF version |
Description: Property of being a Caratheodory measurable set. (Contributed by Thierry Arnoux, 17-May-2020.) |
Ref | Expression |
---|---|
carsgval.1 | ⊢ (𝜑 → 𝑂 ∈ 𝑉) |
carsgval.2 | ⊢ (𝜑 → 𝑀:𝒫 𝑂⟶(0[,]+∞)) |
Ref | Expression |
---|---|
elcarsg | ⊢ (𝜑 → (𝐴 ∈ (toCaraSiga‘𝑀) ↔ (𝐴 ⊆ 𝑂 ∧ ∀𝑒 ∈ 𝒫 𝑂((𝑀‘(𝑒 ∩ 𝐴)) +𝑒 (𝑀‘(𝑒 ∖ 𝐴))) = (𝑀‘𝑒)))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | carsgval.1 | . . . 4 ⊢ (𝜑 → 𝑂 ∈ 𝑉) | |
2 | carsgval.2 | . . . 4 ⊢ (𝜑 → 𝑀:𝒫 𝑂⟶(0[,]+∞)) | |
3 | 1, 2 | carsgval 32170 | . . 3 ⊢ (𝜑 → (toCaraSiga‘𝑀) = {𝑎 ∈ 𝒫 𝑂 ∣ ∀𝑒 ∈ 𝒫 𝑂((𝑀‘(𝑒 ∩ 𝑎)) +𝑒 (𝑀‘(𝑒 ∖ 𝑎))) = (𝑀‘𝑒)}) |
4 | 3 | eleq2d 2824 | . 2 ⊢ (𝜑 → (𝐴 ∈ (toCaraSiga‘𝑀) ↔ 𝐴 ∈ {𝑎 ∈ 𝒫 𝑂 ∣ ∀𝑒 ∈ 𝒫 𝑂((𝑀‘(𝑒 ∩ 𝑎)) +𝑒 (𝑀‘(𝑒 ∖ 𝑎))) = (𝑀‘𝑒)})) |
5 | ineq2 4137 | . . . . . . . 8 ⊢ (𝑎 = 𝐴 → (𝑒 ∩ 𝑎) = (𝑒 ∩ 𝐴)) | |
6 | 5 | fveq2d 6760 | . . . . . . 7 ⊢ (𝑎 = 𝐴 → (𝑀‘(𝑒 ∩ 𝑎)) = (𝑀‘(𝑒 ∩ 𝐴))) |
7 | difeq2 4047 | . . . . . . . 8 ⊢ (𝑎 = 𝐴 → (𝑒 ∖ 𝑎) = (𝑒 ∖ 𝐴)) | |
8 | 7 | fveq2d 6760 | . . . . . . 7 ⊢ (𝑎 = 𝐴 → (𝑀‘(𝑒 ∖ 𝑎)) = (𝑀‘(𝑒 ∖ 𝐴))) |
9 | 6, 8 | oveq12d 7273 | . . . . . 6 ⊢ (𝑎 = 𝐴 → ((𝑀‘(𝑒 ∩ 𝑎)) +𝑒 (𝑀‘(𝑒 ∖ 𝑎))) = ((𝑀‘(𝑒 ∩ 𝐴)) +𝑒 (𝑀‘(𝑒 ∖ 𝐴)))) |
10 | 9 | eqeq1d 2740 | . . . . 5 ⊢ (𝑎 = 𝐴 → (((𝑀‘(𝑒 ∩ 𝑎)) +𝑒 (𝑀‘(𝑒 ∖ 𝑎))) = (𝑀‘𝑒) ↔ ((𝑀‘(𝑒 ∩ 𝐴)) +𝑒 (𝑀‘(𝑒 ∖ 𝐴))) = (𝑀‘𝑒))) |
11 | 10 | ralbidv 3120 | . . . 4 ⊢ (𝑎 = 𝐴 → (∀𝑒 ∈ 𝒫 𝑂((𝑀‘(𝑒 ∩ 𝑎)) +𝑒 (𝑀‘(𝑒 ∖ 𝑎))) = (𝑀‘𝑒) ↔ ∀𝑒 ∈ 𝒫 𝑂((𝑀‘(𝑒 ∩ 𝐴)) +𝑒 (𝑀‘(𝑒 ∖ 𝐴))) = (𝑀‘𝑒))) |
12 | 11 | elrab 3617 | . . 3 ⊢ (𝐴 ∈ {𝑎 ∈ 𝒫 𝑂 ∣ ∀𝑒 ∈ 𝒫 𝑂((𝑀‘(𝑒 ∩ 𝑎)) +𝑒 (𝑀‘(𝑒 ∖ 𝑎))) = (𝑀‘𝑒)} ↔ (𝐴 ∈ 𝒫 𝑂 ∧ ∀𝑒 ∈ 𝒫 𝑂((𝑀‘(𝑒 ∩ 𝐴)) +𝑒 (𝑀‘(𝑒 ∖ 𝐴))) = (𝑀‘𝑒))) |
13 | elex 3440 | . . . . . 6 ⊢ (𝐴 ∈ 𝒫 𝑂 → 𝐴 ∈ V) | |
14 | 13 | a1i 11 | . . . . 5 ⊢ (𝜑 → (𝐴 ∈ 𝒫 𝑂 → 𝐴 ∈ V)) |
15 | 1 | adantr 480 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝐴 ⊆ 𝑂) → 𝑂 ∈ 𝑉) |
16 | simpr 484 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝐴 ⊆ 𝑂) → 𝐴 ⊆ 𝑂) | |
17 | 15, 16 | ssexd 5243 | . . . . . 6 ⊢ ((𝜑 ∧ 𝐴 ⊆ 𝑂) → 𝐴 ∈ V) |
18 | 17 | ex 412 | . . . . 5 ⊢ (𝜑 → (𝐴 ⊆ 𝑂 → 𝐴 ∈ V)) |
19 | elpwg 4533 | . . . . . 6 ⊢ (𝐴 ∈ V → (𝐴 ∈ 𝒫 𝑂 ↔ 𝐴 ⊆ 𝑂)) | |
20 | 19 | a1i 11 | . . . . 5 ⊢ (𝜑 → (𝐴 ∈ V → (𝐴 ∈ 𝒫 𝑂 ↔ 𝐴 ⊆ 𝑂))) |
21 | 14, 18, 20 | pm5.21ndd 380 | . . . 4 ⊢ (𝜑 → (𝐴 ∈ 𝒫 𝑂 ↔ 𝐴 ⊆ 𝑂)) |
22 | 21 | anbi1d 629 | . . 3 ⊢ (𝜑 → ((𝐴 ∈ 𝒫 𝑂 ∧ ∀𝑒 ∈ 𝒫 𝑂((𝑀‘(𝑒 ∩ 𝐴)) +𝑒 (𝑀‘(𝑒 ∖ 𝐴))) = (𝑀‘𝑒)) ↔ (𝐴 ⊆ 𝑂 ∧ ∀𝑒 ∈ 𝒫 𝑂((𝑀‘(𝑒 ∩ 𝐴)) +𝑒 (𝑀‘(𝑒 ∖ 𝐴))) = (𝑀‘𝑒)))) |
23 | 12, 22 | syl5bb 282 | . 2 ⊢ (𝜑 → (𝐴 ∈ {𝑎 ∈ 𝒫 𝑂 ∣ ∀𝑒 ∈ 𝒫 𝑂((𝑀‘(𝑒 ∩ 𝑎)) +𝑒 (𝑀‘(𝑒 ∖ 𝑎))) = (𝑀‘𝑒)} ↔ (𝐴 ⊆ 𝑂 ∧ ∀𝑒 ∈ 𝒫 𝑂((𝑀‘(𝑒 ∩ 𝐴)) +𝑒 (𝑀‘(𝑒 ∖ 𝐴))) = (𝑀‘𝑒)))) |
24 | 4, 23 | bitrd 278 | 1 ⊢ (𝜑 → (𝐴 ∈ (toCaraSiga‘𝑀) ↔ (𝐴 ⊆ 𝑂 ∧ ∀𝑒 ∈ 𝒫 𝑂((𝑀‘(𝑒 ∩ 𝐴)) +𝑒 (𝑀‘(𝑒 ∖ 𝐴))) = (𝑀‘𝑒)))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 = wceq 1539 ∈ wcel 2108 ∀wral 3063 {crab 3067 Vcvv 3422 ∖ cdif 3880 ∩ cin 3882 ⊆ wss 3883 𝒫 cpw 4530 ⟶wf 6414 ‘cfv 6418 (class class class)co 7255 0cc0 10802 +∞cpnf 10937 +𝑒 cxad 12775 [,]cicc 13011 toCaraSigaccarsg 32168 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-id 5480 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-ov 7258 df-carsg 32169 |
This theorem is referenced by: baselcarsg 32173 0elcarsg 32174 difelcarsg 32177 inelcarsg 32178 carsgclctunlem1 32184 carsgclctunlem2 32186 carsgclctun 32188 |
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