Theorem uniioombl 24190

Description: A disjoint union of open intervals is measurable. (This proof does not use countable choice, unlike iunmbl 24154.) Lemma 565Ca of [Fremlin5] p. 214. (Contributed by Mario Carneiro, 26-Mar-2015.)

Hypotheses

Ref	Expression
uniioombl.1	⊢ (𝜑 → 𝐹:ℕ⟶( ≤ ∩ (ℝ × ℝ)))
uniioombl.2	⊢ (𝜑 → Disj 𝑥 ∈ ℕ ((,)‘(𝐹‘𝑥)))
uniioombl.3	⊢ 𝑆 = seq1( + , ((abs ∘ − ) ∘ 𝐹))

Assertion

Ref	Expression
uniioombl	⊢ (𝜑 → ∪ ran ((,) ∘ 𝐹) ∈ dom vol)

Distinct variable groups:   𝑥,𝐹   𝜑,𝑥

Allowed substitution hint:   𝑆(𝑥)

Proof of Theorem uniioombl

Dummy variables 𝑓 𝑟 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		ioof 12836	. . . . 5 ⊢ (,):(ℝ* × ℝ*)⟶𝒫 ℝ
2		uniioombl.1	. . . . . 6 ⊢ (𝜑 → 𝐹:ℕ⟶( ≤ ∩ (ℝ × ℝ)))
3		inss2 4206	. . . . . . 7 ⊢ ( ≤ ∩ (ℝ × ℝ)) ⊆ (ℝ × ℝ)
4		rexpssxrxp 10686	. . . . . . 7 ⊢ (ℝ × ℝ) ⊆ (ℝ* × ℝ*)
5	3, 4	sstri 3976	. . . . . 6 ⊢ ( ≤ ∩ (ℝ × ℝ)) ⊆ (ℝ* × ℝ*)
6		fss 6527	. . . . . 6 ⊢ ((𝐹:ℕ⟶( ≤ ∩ (ℝ × ℝ)) ∧ ( ≤ ∩ (ℝ × ℝ)) ⊆ (ℝ* × ℝ*)) → 𝐹:ℕ⟶(ℝ* × ℝ*))
7	2, 5, 6	sylancl 588	. . . . 5 ⊢ (𝜑 → 𝐹:ℕ⟶(ℝ* × ℝ*))
8		fco 6531	. . . . 5 ⊢ (((,):(ℝ* × ℝ*)⟶𝒫 ℝ ∧ 𝐹:ℕ⟶(ℝ* × ℝ*)) → ((,) ∘ 𝐹):ℕ⟶𝒫 ℝ)
9	1, 7, 8	sylancr 589	. . . 4 ⊢ (𝜑 → ((,) ∘ 𝐹):ℕ⟶𝒫 ℝ)
10	9	frnd 6521	. . 3 ⊢ (𝜑 → ran ((,) ∘ 𝐹) ⊆ 𝒫 ℝ)
11		sspwuni 5022	. . 3 ⊢ (ran ((,) ∘ 𝐹) ⊆ 𝒫 ℝ ↔ ∪ ran ((,) ∘ 𝐹) ⊆ ℝ)
12	10, 11	sylib 220	. 2 ⊢ (𝜑 → ∪ ran ((,) ∘ 𝐹) ⊆ ℝ)
13		elpwi 4548	. . . . . . . . . 10 ⊢ (𝑧 ∈ 𝒫 ℝ → 𝑧 ⊆ ℝ)
14	13	ad2antrl 726	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) → 𝑧 ⊆ ℝ)
15		simprr 771	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) → (vol*‘𝑧) ∈ ℝ)
16		rphalfcl 12417	. . . . . . . . . 10 ⊢ (𝑟 ∈ ℝ+ → (𝑟 / 2) ∈ ℝ+)
17	16	rphalfcld 12444	. . . . . . . . 9 ⊢ (𝑟 ∈ ℝ+ → ((𝑟 / 2) / 2) ∈ ℝ+)
18		eqid 2821	. . . . . . . . . 10 ⊢ seq1( + , ((abs ∘ − ) ∘ 𝑓)) = seq1( + , ((abs ∘ − ) ∘ 𝑓))
19	18	ovolgelb 24081	. . . . . . . . 9 ⊢ ((𝑧 ⊆ ℝ ∧ (vol*‘𝑧) ∈ ℝ ∧ ((𝑟 / 2) / 2) ∈ ℝ+) → ∃𝑓 ∈ (( ≤ ∩ (ℝ × ℝ)) ↑m ℕ)(𝑧 ⊆ ∪ ran ((,) ∘ 𝑓) ∧ sup(ran seq1( + , ((abs ∘ − ) ∘ 𝑓)), ℝ*, < ) ≤ ((vol*‘𝑧) + ((𝑟 / 2) / 2))))
20	14, 15, 17, 19	syl2an3an 1418	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) → ∃𝑓 ∈ (( ≤ ∩ (ℝ × ℝ)) ↑m ℕ)(𝑧 ⊆ ∪ ran ((,) ∘ 𝑓) ∧ sup(ran seq1( + , ((abs ∘ − ) ∘ 𝑓)), ℝ*, < ) ≤ ((vol*‘𝑧) + ((𝑟 / 2) / 2))))
21	2	ad3antrrr 728	. . . . . . . . 9 ⊢ ((((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑓 ∈ (( ≤ ∩ (ℝ × ℝ)) ↑m ℕ) ∧ (𝑧 ⊆ ∪ ran ((,) ∘ 𝑓) ∧ sup(ran seq1( + , ((abs ∘ − ) ∘ 𝑓)), ℝ*, < ) ≤ ((vol*‘𝑧) + ((𝑟 / 2) / 2))))) → 𝐹:ℕ⟶( ≤ ∩ (ℝ × ℝ)))
22		uniioombl.2	. . . . . . . . . 10 ⊢ (𝜑 → Disj 𝑥 ∈ ℕ ((,)‘(𝐹‘𝑥)))
23	22	ad3antrrr 728	. . . . . . . . 9 ⊢ ((((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑓 ∈ (( ≤ ∩ (ℝ × ℝ)) ↑m ℕ) ∧ (𝑧 ⊆ ∪ ran ((,) ∘ 𝑓) ∧ sup(ran seq1( + , ((abs ∘ − ) ∘ 𝑓)), ℝ*, < ) ≤ ((vol*‘𝑧) + ((𝑟 / 2) / 2))))) → Disj 𝑥 ∈ ℕ ((,)‘(𝐹‘𝑥)))
24		uniioombl.3	. . . . . . . . 9 ⊢ 𝑆 = seq1( + , ((abs ∘ − ) ∘ 𝐹))
25		eqid 2821	. . . . . . . . 9 ⊢ ∪ ran ((,) ∘ 𝐹) = ∪ ran ((,) ∘ 𝐹)
26	15	adantr 483	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) → (vol*‘𝑧) ∈ ℝ)
27	26	adantr 483	. . . . . . . . 9 ⊢ ((((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑓 ∈ (( ≤ ∩ (ℝ × ℝ)) ↑m ℕ) ∧ (𝑧 ⊆ ∪ ran ((,) ∘ 𝑓) ∧ sup(ran seq1( + , ((abs ∘ − ) ∘ 𝑓)), ℝ*, < ) ≤ ((vol*‘𝑧) + ((𝑟 / 2) / 2))))) → (vol*‘𝑧) ∈ ℝ)
28	16	adantl 484	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) → (𝑟 / 2) ∈ ℝ+)
29	28	adantr 483	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑓 ∈ (( ≤ ∩ (ℝ × ℝ)) ↑m ℕ) ∧ (𝑧 ⊆ ∪ ran ((,) ∘ 𝑓) ∧ sup(ran seq1( + , ((abs ∘ − ) ∘ 𝑓)), ℝ*, < ) ≤ ((vol*‘𝑧) + ((𝑟 / 2) / 2))))) → (𝑟 / 2) ∈ ℝ+)
30	29	rphalfcld 12444	. . . . . . . . 9 ⊢ ((((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑓 ∈ (( ≤ ∩ (ℝ × ℝ)) ↑m ℕ) ∧ (𝑧 ⊆ ∪ ran ((,) ∘ 𝑓) ∧ sup(ran seq1( + , ((abs ∘ − ) ∘ 𝑓)), ℝ*, < ) ≤ ((vol*‘𝑧) + ((𝑟 / 2) / 2))))) → ((𝑟 / 2) / 2) ∈ ℝ+)
31		elmapi 8428	. . . . . . . . . 10 ⊢ (𝑓 ∈ (( ≤ ∩ (ℝ × ℝ)) ↑m ℕ) → 𝑓:ℕ⟶( ≤ ∩ (ℝ × ℝ)))
32	31	ad2antrl 726	. . . . . . . . 9 ⊢ ((((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑓 ∈ (( ≤ ∩ (ℝ × ℝ)) ↑m ℕ) ∧ (𝑧 ⊆ ∪ ran ((,) ∘ 𝑓) ∧ sup(ran seq1( + , ((abs ∘ − ) ∘ 𝑓)), ℝ*, < ) ≤ ((vol*‘𝑧) + ((𝑟 / 2) / 2))))) → 𝑓:ℕ⟶( ≤ ∩ (ℝ × ℝ)))
33		simprrl 779	. . . . . . . . 9 ⊢ ((((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑓 ∈ (( ≤ ∩ (ℝ × ℝ)) ↑m ℕ) ∧ (𝑧 ⊆ ∪ ran ((,) ∘ 𝑓) ∧ sup(ran seq1( + , ((abs ∘ − ) ∘ 𝑓)), ℝ*, < ) ≤ ((vol*‘𝑧) + ((𝑟 / 2) / 2))))) → 𝑧 ⊆ ∪ ran ((,) ∘ 𝑓))
34		simprrr 780	. . . . . . . . 9 ⊢ ((((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑓 ∈ (( ≤ ∩ (ℝ × ℝ)) ↑m ℕ) ∧ (𝑧 ⊆ ∪ ran ((,) ∘ 𝑓) ∧ sup(ran seq1( + , ((abs ∘ − ) ∘ 𝑓)), ℝ*, < ) ≤ ((vol*‘𝑧) + ((𝑟 / 2) / 2))))) → sup(ran seq1( + , ((abs ∘ − ) ∘ 𝑓)), ℝ*, < ) ≤ ((vol*‘𝑧) + ((𝑟 / 2) / 2)))
35	21, 23, 24, 25, 27, 30, 32, 33, 18, 34	uniioombllem6 24189	. . . . . . . 8 ⊢ ((((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑓 ∈ (( ≤ ∩ (ℝ × ℝ)) ↑m ℕ) ∧ (𝑧 ⊆ ∪ ran ((,) ∘ 𝑓) ∧ sup(ran seq1( + , ((abs ∘ − ) ∘ 𝑓)), ℝ*, < ) ≤ ((vol*‘𝑧) + ((𝑟 / 2) / 2))))) → ((vol*‘(𝑧 ∩ ∪ ran ((,) ∘ 𝐹))) + (vol*‘(𝑧 ∖ ∪ ran ((,) ∘ 𝐹)))) ≤ ((vol*‘𝑧) + (4 · ((𝑟 / 2) / 2))))
36	20, 35	rexlimddv 3291	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) → ((vol*‘(𝑧 ∩ ∪ ran ((,) ∘ 𝐹))) + (vol*‘(𝑧 ∖ ∪ ran ((,) ∘ 𝐹)))) ≤ ((vol*‘𝑧) + (4 · ((𝑟 / 2) / 2))))
37		rpcn 12400	. . . . . . . . . . . . 13 ⊢ (𝑟 ∈ ℝ+ → 𝑟 ∈ ℂ)
38	37	adantl 484	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) → 𝑟 ∈ ℂ)
39		2cnd 11716	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) → 2 ∈ ℂ)
40		2ne0 11742	. . . . . . . . . . . . 13 ⊢ 2 ≠ 0
41	40	a1i 11	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) → 2 ≠ 0)
42	38, 39, 39, 41, 41	divdiv1d 11447	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) → ((𝑟 / 2) / 2) = (𝑟 / (2 · 2)))
43		2t2e4 11802	. . . . . . . . . . . 12 ⊢ (2 · 2) = 4
44	43	oveq2i 7167	. . . . . . . . . . 11 ⊢ (𝑟 / (2 · 2)) = (𝑟 / 4)
45	42, 44	syl6eq 2872	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) → ((𝑟 / 2) / 2) = (𝑟 / 4))
46	45	oveq2d 7172	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) → (4 · ((𝑟 / 2) / 2)) = (4 · (𝑟 / 4)))
47		4cn 11723	. . . . . . . . . . 11 ⊢ 4 ∈ ℂ
48	47	a1i 11	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) → 4 ∈ ℂ)
49		4ne0 11746	. . . . . . . . . . 11 ⊢ 4 ≠ 0
50	49	a1i 11	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) → 4 ≠ 0)
51	38, 48, 50	divcan2d 11418	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) → (4 · (𝑟 / 4)) = 𝑟)
52	46, 51	eqtrd 2856	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) → (4 · ((𝑟 / 2) / 2)) = 𝑟)
53	52	oveq2d 7172	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) → ((vol*‘𝑧) + (4 · ((𝑟 / 2) / 2))) = ((vol*‘𝑧) + 𝑟))
54	36, 53	breqtrd 5092	. . . . . 6 ⊢ (((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) ∧ 𝑟 ∈ ℝ+) → ((vol*‘(𝑧 ∩ ∪ ran ((,) ∘ 𝐹))) + (vol*‘(𝑧 ∖ ∪ ran ((,) ∘ 𝐹)))) ≤ ((vol*‘𝑧) + 𝑟))
55	54	ralrimiva 3182	. . . . 5 ⊢ ((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) → ∀𝑟 ∈ ℝ+ ((vol*‘(𝑧 ∩ ∪ ran ((,) ∘ 𝐹))) + (vol*‘(𝑧 ∖ ∪ ran ((,) ∘ 𝐹)))) ≤ ((vol*‘𝑧) + 𝑟))
56		inss1 4205	. . . . . . . . 9 ⊢ (𝑧 ∩ ∪ ran ((,) ∘ 𝐹)) ⊆ 𝑧
57	56	a1i 11	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) → (𝑧 ∩ ∪ ran ((,) ∘ 𝐹)) ⊆ 𝑧)
58		ovolsscl 24087	. . . . . . . 8 ⊢ (((𝑧 ∩ ∪ ran ((,) ∘ 𝐹)) ⊆ 𝑧 ∧ 𝑧 ⊆ ℝ ∧ (vol*‘𝑧) ∈ ℝ) → (vol*‘(𝑧 ∩ ∪ ran ((,) ∘ 𝐹))) ∈ ℝ)
59	57, 14, 15, 58	syl3anc 1367	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) → (vol*‘(𝑧 ∩ ∪ ran ((,) ∘ 𝐹))) ∈ ℝ)
60		difssd 4109	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) → (𝑧 ∖ ∪ ran ((,) ∘ 𝐹)) ⊆ 𝑧)
61		ovolsscl 24087	. . . . . . . 8 ⊢ (((𝑧 ∖ ∪ ran ((,) ∘ 𝐹)) ⊆ 𝑧 ∧ 𝑧 ⊆ ℝ ∧ (vol*‘𝑧) ∈ ℝ) → (vol*‘(𝑧 ∖ ∪ ran ((,) ∘ 𝐹))) ∈ ℝ)
62	60, 14, 15, 61	syl3anc 1367	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) → (vol*‘(𝑧 ∖ ∪ ran ((,) ∘ 𝐹))) ∈ ℝ)
63	59, 62	readdcld 10670	. . . . . 6 ⊢ ((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) → ((vol*‘(𝑧 ∩ ∪ ran ((,) ∘ 𝐹))) + (vol*‘(𝑧 ∖ ∪ ran ((,) ∘ 𝐹)))) ∈ ℝ)
64		alrple 12600	. . . . . 6 ⊢ ((((vol*‘(𝑧 ∩ ∪ ran ((,) ∘ 𝐹))) + (vol*‘(𝑧 ∖ ∪ ran ((,) ∘ 𝐹)))) ∈ ℝ ∧ (vol*‘𝑧) ∈ ℝ) → (((vol*‘(𝑧 ∩ ∪ ran ((,) ∘ 𝐹))) + (vol*‘(𝑧 ∖ ∪ ran ((,) ∘ 𝐹)))) ≤ (vol*‘𝑧) ↔ ∀𝑟 ∈ ℝ+ ((vol*‘(𝑧 ∩ ∪ ran ((,) ∘ 𝐹))) + (vol*‘(𝑧 ∖ ∪ ran ((,) ∘ 𝐹)))) ≤ ((vol*‘𝑧) + 𝑟)))
65	63, 15, 64	syl2anc 586	. . . . 5 ⊢ ((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) → (((vol*‘(𝑧 ∩ ∪ ran ((,) ∘ 𝐹))) + (vol*‘(𝑧 ∖ ∪ ran ((,) ∘ 𝐹)))) ≤ (vol*‘𝑧) ↔ ∀𝑟 ∈ ℝ+ ((vol*‘(𝑧 ∩ ∪ ran ((,) ∘ 𝐹))) + (vol*‘(𝑧 ∖ ∪ ran ((,) ∘ 𝐹)))) ≤ ((vol*‘𝑧) + 𝑟)))
66	55, 65	mpbird 259	. . . 4 ⊢ ((𝜑 ∧ (𝑧 ∈ 𝒫 ℝ ∧ (vol*‘𝑧) ∈ ℝ)) → ((vol*‘(𝑧 ∩ ∪ ran ((,) ∘ 𝐹))) + (vol*‘(𝑧 ∖ ∪ ran ((,) ∘ 𝐹)))) ≤ (vol*‘𝑧))
67	66	expr 459	. . 3 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝒫 ℝ) → ((vol*‘𝑧) ∈ ℝ → ((vol*‘(𝑧 ∩ ∪ ran ((,) ∘ 𝐹))) + (vol*‘(𝑧 ∖ ∪ ran ((,) ∘ 𝐹)))) ≤ (vol*‘𝑧)))
68	67	ralrimiva 3182	. 2 ⊢ (𝜑 → ∀𝑧 ∈ 𝒫 ℝ((vol*‘𝑧) ∈ ℝ → ((vol*‘(𝑧 ∩ ∪ ran ((,) ∘ 𝐹))) + (vol*‘(𝑧 ∖ ∪ ran ((,) ∘ 𝐹)))) ≤ (vol*‘𝑧)))
69		ismbl2 24128	. 2 ⊢ (∪ ran ((,) ∘ 𝐹) ∈ dom vol ↔ (∪ ran ((,) ∘ 𝐹) ⊆ ℝ ∧ ∀𝑧 ∈ 𝒫 ℝ((vol*‘𝑧) ∈ ℝ → ((vol*‘(𝑧 ∩ ∪ ran ((,) ∘ 𝐹))) + (vol*‘(𝑧 ∖ ∪ ran ((,) ∘ 𝐹)))) ≤ (vol*‘𝑧))))
70	12, 68, 69	sylanbrc 585	1 ⊢ (𝜑 → ∪ ran ((,) ∘ 𝐹) ∈ dom vol)

Syntax hints:   → wi 4   ↔ wb 208   ∧ wa 398   = wceq 1537   ∈ wcel 2114   ≠ wne 3016  ∀wral 3138  ∃wrex 3139   ∖ cdif 3933   ∩ cin 3935   ⊆ wss 3936  𝒫 cpw 4539  ∪ cuni 4838  Disj wdisj 5031   class class class wbr 5066   × cxp 5553  dom cdm 5555  ran crn 5556   ∘ ccom 5559  ⟶wf 6351  ‘cfv 6355  (class class class)co 7156   ↑_m cmap 8406  supcsup 8904  ℂcc 10535  ℝcr 10536  0cc0 10537  1c1 10538   + caddc 10540   · cmul 10542  ℝ^*cxr 10674   < clt 10675   ≤ cle 10676   − cmin 10870   / cdiv 11297  ℕcn 11638  2c2 11693  4c4 11695  ℝ⁺crp 12390  (,)cioo 12739  seqcseq 13370  abscabs 14593  vol*covol 24063  volcvol 24064

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2177  ax-ext 2793  ax-rep 5190  ax-sep 5203  ax-nul 5210  ax-pow 5266  ax-pr 5330  ax-un 7461  ax-inf2 9104  ax-cnex 10593  ax-resscn 10594  ax-1cn 10595  ax-icn 10596  ax-addcl 10597  ax-addrcl 10598  ax-mulcl 10599  ax-mulrcl 10600  ax-mulcom 10601  ax-addass 10602  ax-mulass 10603  ax-distr 10604  ax-i2m1 10605  ax-1ne0 10606  ax-1rid 10607  ax-rnegex 10608  ax-rrecex 10609  ax-cnre 10610  ax-pre-lttri 10611  ax-pre-lttrn 10612  ax-pre-ltadd 10613  ax-pre-mulgt0 10614  ax-pre-sup 10615

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1084  df-3an 1085  df-tru 1540  df-fal 1550  df-ex 1781  df-nf 1785  df-sb 2070  df-mo 2622  df-eu 2654  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-nel 3124  df-ral 3143  df-rex 3144  df-reu 3145  df-rmo 3146  df-rab 3147  df-v 3496  df-sbc 3773  df-csb 3884  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-pss 3954  df-nul 4292  df-if 4468  df-pw 4541  df-sn 4568  df-pr 4570  df-tp 4572  df-op 4574  df-uni 4839  df-int 4877  df-iun 4921  df-disj 5032  df-br 5067  df-opab 5129  df-mpt 5147  df-tr 5173  df-id 5460  df-eprel 5465  df-po 5474  df-so 5475  df-fr 5514  df-se 5515  df-we 5516  df-xp 5561  df-rel 5562  df-cnv 5563  df-co 5564  df-dm 5565  df-rn 5566  df-res 5567  df-ima 5568  df-pred 6148  df-ord 6194  df-on 6195  df-lim 6196  df-suc 6197  df-iota 6314  df-fun 6357  df-fn 6358  df-f 6359  df-f1 6360  df-fo 6361  df-f1o 6362  df-fv 6363  df-isom 6364  df-riota 7114  df-ov 7159  df-oprab 7160  df-mpo 7161  df-of 7409  df-om 7581  df-1st 7689  df-2nd 7690  df-wrecs 7947  df-recs 8008  df-rdg 8046  df-1o 8102  df-2o 8103  df-oadd 8106  df-er 8289  df-map 8408  df-pm 8409  df-en 8510  df-dom 8511  df-sdom 8512  df-fin 8513  df-fi 8875  df-sup 8906  df-inf 8907  df-oi 8974  df-dju 9330  df-card 9368  df-acn 9371  df-pnf 10677  df-mnf 10678  df-xr 10679  df-ltxr 10680  df-le 10681  df-sub 10872  df-neg 10873  df-div 11298  df-nn 11639  df-2 11701  df-3 11702  df-4 11703  df-n0 11899  df-z 11983  df-uz 12245  df-q 12350  df-rp 12391  df-xneg 12508  df-xadd 12509  df-xmul 12510  df-ioo 12743  df-ico 12745  df-icc 12746  df-fz 12894  df-fzo 13035  df-fl 13163  df-seq 13371  df-exp 13431  df-hash 13692  df-cj 14458  df-re 14459  df-im 14460  df-sqrt 14594  df-abs 14595  df-clim 14845  df-rlim 14846  df-sum 15043  df-rest 16696  df-topgen 16717  df-psmet 20537  df-xmet 20538  df-met 20539  df-bl 20540  df-mopn 20541  df-top 21502  df-topon 21519  df-bases 21554  df-cmp 21995  df-ovol 24065  df-vol 24066

This theorem is referenced by:  uniiccmbl  24191