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 32270 | . . 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 4140 | . . . . . . . 8 ⊢ (𝑎 = 𝐴 → (𝑒 ∩ 𝑎) = (𝑒 ∩ 𝐴)) | |
6 | 5 | fveq2d 6778 | . . . . . . 7 ⊢ (𝑎 = 𝐴 → (𝑀‘(𝑒 ∩ 𝑎)) = (𝑀‘(𝑒 ∩ 𝐴))) |
7 | difeq2 4051 | . . . . . . . 8 ⊢ (𝑎 = 𝐴 → (𝑒 ∖ 𝑎) = (𝑒 ∖ 𝐴)) | |
8 | 7 | fveq2d 6778 | . . . . . . 7 ⊢ (𝑎 = 𝐴 → (𝑀‘(𝑒 ∖ 𝑎)) = (𝑀‘(𝑒 ∖ 𝐴))) |
9 | 6, 8 | oveq12d 7293 | . . . . . 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 3112 | . . . 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 3624 | . . 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 3450 | . . . . . 6 ⊢ (𝐴 ∈ 𝒫 𝑂 → 𝐴 ∈ V) | |
14 | 13 | a1i 11 | . . . . 5 ⊢ (𝜑 → (𝐴 ∈ 𝒫 𝑂 → 𝐴 ∈ V)) |
15 | 1 | adantr 481 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝐴 ⊆ 𝑂) → 𝑂 ∈ 𝑉) |
16 | simpr 485 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝐴 ⊆ 𝑂) → 𝐴 ⊆ 𝑂) | |
17 | 15, 16 | ssexd 5248 | . . . . . 6 ⊢ ((𝜑 ∧ 𝐴 ⊆ 𝑂) → 𝐴 ∈ V) |
18 | 17 | ex 413 | . . . . 5 ⊢ (𝜑 → (𝐴 ⊆ 𝑂 → 𝐴 ∈ V)) |
19 | elpwg 4536 | . . . . . 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 381 | . . . 4 ⊢ (𝜑 → (𝐴 ∈ 𝒫 𝑂 ↔ 𝐴 ⊆ 𝑂)) |
22 | 21 | anbi1d 630 | . . 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 283 | . 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 396 = wceq 1539 ∈ wcel 2106 ∀wral 3064 {crab 3068 Vcvv 3432 ∖ cdif 3884 ∩ cin 3886 ⊆ wss 3887 𝒫 cpw 4533 ⟶wf 6429 ‘cfv 6433 (class class class)co 7275 0cc0 10871 +∞cpnf 11006 +𝑒 cxad 12846 [,]cicc 13082 toCaraSigaccarsg 32268 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-ral 3069 df-rex 3070 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-id 5489 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-ov 7278 df-carsg 32269 |
This theorem is referenced by: baselcarsg 32273 0elcarsg 32274 difelcarsg 32277 inelcarsg 32278 carsgclctunlem1 32284 carsgclctunlem2 32286 carsgclctun 32288 |
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