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Mirrors > Home > MPE Home > Th. List > Mathboxes > caragenelss | Structured version Visualization version GIF version |
Description: An element of the Caratheodory's construction is a subset of the base set of the outer measure. (Contributed by Glauco Siliprandi, 17-Aug-2020.) |
Ref | Expression |
---|---|
caragenelss.o | ⊢ (𝜑 → 𝑂 ∈ OutMeas) |
caragenelss.s | ⊢ 𝑆 = (CaraGen‘𝑂) |
caragenelss.a | ⊢ (𝜑 → 𝐴 ∈ 𝑆) |
caragenelss.x | ⊢ 𝑋 = ∪ dom 𝑂 |
Ref | Expression |
---|---|
caragenelss | ⊢ (𝜑 → 𝐴 ⊆ 𝑋) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | caragenelss.a | . . . . 5 ⊢ (𝜑 → 𝐴 ∈ 𝑆) | |
2 | caragenelss.o | . . . . . 6 ⊢ (𝜑 → 𝑂 ∈ OutMeas) | |
3 | caragenelss.s | . . . . . 6 ⊢ 𝑆 = (CaraGen‘𝑂) | |
4 | 2, 3 | caragenel 40709 | . . . . 5 ⊢ (𝜑 → (𝐴 ∈ 𝑆 ↔ (𝐴 ∈ 𝒫 ∪ dom 𝑂 ∧ ∀𝑥 ∈ 𝒫 ∪ dom 𝑂((𝑂‘(𝑥 ∩ 𝐴)) +𝑒 (𝑂‘(𝑥 ∖ 𝐴))) = (𝑂‘𝑥)))) |
5 | 1, 4 | mpbid 222 | . . . 4 ⊢ (𝜑 → (𝐴 ∈ 𝒫 ∪ dom 𝑂 ∧ ∀𝑥 ∈ 𝒫 ∪ dom 𝑂((𝑂‘(𝑥 ∩ 𝐴)) +𝑒 (𝑂‘(𝑥 ∖ 𝐴))) = (𝑂‘𝑥))) |
6 | 5 | simpld 475 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝒫 ∪ dom 𝑂) |
7 | caragenelss.x | . . . . . 6 ⊢ 𝑋 = ∪ dom 𝑂 | |
8 | 7 | eqcomi 2631 | . . . . 5 ⊢ ∪ dom 𝑂 = 𝑋 |
9 | 8 | pweqi 4162 | . . . 4 ⊢ 𝒫 ∪ dom 𝑂 = 𝒫 𝑋 |
10 | 9 | a1i 11 | . . 3 ⊢ (𝜑 → 𝒫 ∪ dom 𝑂 = 𝒫 𝑋) |
11 | 6, 10 | eleqtrd 2703 | . 2 ⊢ (𝜑 → 𝐴 ∈ 𝒫 𝑋) |
12 | elpwg 4166 | . . 3 ⊢ (𝐴 ∈ 𝑆 → (𝐴 ∈ 𝒫 𝑋 ↔ 𝐴 ⊆ 𝑋)) | |
13 | 1, 12 | syl 17 | . 2 ⊢ (𝜑 → (𝐴 ∈ 𝒫 𝑋 ↔ 𝐴 ⊆ 𝑋)) |
14 | 11, 13 | mpbid 222 | 1 ⊢ (𝜑 → 𝐴 ⊆ 𝑋) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 196 ∧ wa 384 = wceq 1483 ∈ wcel 1990 ∀wral 2912 ∖ cdif 3571 ∩ cin 3573 ⊆ wss 3574 𝒫 cpw 4158 ∪ cuni 4436 dom cdm 5114 ‘cfv 5888 (class class class)co 6650 +𝑒 cxad 11944 OutMeascome 40703 CaraGenccaragen 40705 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-sbc 3436 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-br 4654 df-opab 4713 df-mpt 4730 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-iota 5851 df-fun 5890 df-fv 5896 df-ov 6653 df-caragen 40706 |
This theorem is referenced by: caragenuncllem 40726 caragenuncl 40727 |
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