oms0 - Mathbox for Thierry Arnoux

	Mathbox for Thierry Arnoux		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > Mathboxes > oms0		Structured version Visualization version GIF version

Theorem oms0 33296

Description: A constructed outer measure evaluates to zero for the empty set. (Contributed by Thierry Arnoux, 15-Sep-2019.) (Revised by AV, 4-Oct-2020.)

**Hypotheses**
Ref	Expression
oms.m	⊢ 𝑀 = (toOMeas‘𝑅)
oms.o	⊢ (𝜑 → 𝑄 ∈ 𝑉)
oms.r	⊢ (𝜑 → 𝑅:𝑄⟶(0[,]+∞))
oms.d	⊢ (𝜑 → ∅ ∈ dom 𝑅)
oms.0	⊢ (𝜑 → (𝑅‘∅) = 0)

**Assertion**
Ref	Expression
oms0	⊢ (𝜑 → (𝑀‘∅) = 0)

Proof of Theorem oms0 Dummy variables 𝑥 𝑦 𝑧 𝑎 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		oms.m	. . 3 ⊢ 𝑀 = (toOMeas‘𝑅)
2	1	fveq1i 6893	. 2 ⊢ (𝑀‘∅) = ((toOMeas‘𝑅)‘∅)
3		oms.o	. . . 4 ⊢ (𝜑 → 𝑄 ∈ 𝑉)
4		oms.r	. . . 4 ⊢ (𝜑 → 𝑅:𝑄⟶(0[,]+∞))
5		0ss 4397	. . . . 5 ⊢ ∅ ⊆ ∪ dom 𝑅
6	4	fdmd 6729	. . . . . 6 ⊢ (𝜑 → dom 𝑅 = 𝑄)
7	6	unieqd 4923	. . . . 5 ⊢ (𝜑 → ∪ dom 𝑅 = ∪ 𝑄)
8	5, 7	sseqtrid 4035	. . . 4 ⊢ (𝜑 → ∅ ⊆ ∪ 𝑄)
9		omsfval 33293	. . . 4 ⊢ ((𝑄 ∈ 𝑉 ∧ 𝑅:𝑄⟶(0[,]+∞) ∧ ∅ ⊆ ∪ 𝑄) → ((toOMeas‘𝑅)‘∅) = inf(ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦)), (0[,]+∞), < ))
10	3, 4, 8, 9	syl3anc 1372	. . 3 ⊢ (𝜑 → ((toOMeas‘𝑅)‘∅) = inf(ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦)), (0[,]+∞), < ))
11		iccssxr 13407	. . . . . 6 ⊢ (0[,]+∞) ⊆ ℝ^*
12		xrltso 13120	. . . . . 6 ⊢ < Or ℝ^*
13		soss 5609	. . . . . 6 ⊢ ((0[,]+∞) ⊆ ℝ^* → ( < Or ℝ^* → < Or (0[,]+∞)))
14	11, 12, 13	mp2 9	. . . . 5 ⊢ < Or (0[,]+∞)
15	14	a1i 11	. . . 4 ⊢ (𝜑 → < Or (0[,]+∞))
16		0e0iccpnf 13436	. . . . 5 ⊢ 0 ∈ (0[,]+∞)
17	16	a1i 11	. . . 4 ⊢ (𝜑 → 0 ∈ (0[,]+∞))
18		oms.d	. . . . . . . . . 10 ⊢ (𝜑 → ∅ ∈ dom 𝑅)
19	18	snssd 4813	. . . . . . . . 9 ⊢ (𝜑 → {∅} ⊆ dom 𝑅)
20		p0ex 5383	. . . . . . . . . 10 ⊢ {∅} ∈ V
21	20	elpw 4607	. . . . . . . . 9 ⊢ ({∅} ∈ 𝒫 dom 𝑅 ↔ {∅} ⊆ dom 𝑅)
22	19, 21	sylibr 233	. . . . . . . 8 ⊢ (𝜑 → {∅} ∈ 𝒫 dom 𝑅)
23		0ss 4397	. . . . . . . . 9 ⊢ ∅ ⊆ ∪ {∅}
24		0ex 5308	. . . . . . . . . 10 ⊢ ∅ ∈ V
25		snct 31938	. . . . . . . . . 10 ⊢ (∅ ∈ V → {∅} ≼ ω)
26	24, 25	ax-mp 5	. . . . . . . . 9 ⊢ {∅} ≼ ω
27	23, 26	pm3.2i 472	. . . . . . . 8 ⊢ (∅ ⊆ ∪ {∅} ∧ {∅} ≼ ω)
28	22, 27	jctir 522	. . . . . . 7 ⊢ (𝜑 → ({∅} ∈ 𝒫 dom 𝑅 ∧ (∅ ⊆ ∪ {∅} ∧ {∅} ≼ ω)))
29		unieq 4920	. . . . . . . . . 10 ⊢ (𝑧 = {∅} → ∪ 𝑧 = ∪ {∅})
30	29	sseq2d 4015	. . . . . . . . 9 ⊢ (𝑧 = {∅} → (∅ ⊆ ∪ 𝑧 ↔ ∅ ⊆ ∪ {∅}))
31		breq1 5152	. . . . . . . . 9 ⊢ (𝑧 = {∅} → (𝑧 ≼ ω ↔ {∅} ≼ ω))
32	30, 31	anbi12d 632	. . . . . . . 8 ⊢ (𝑧 = {∅} → ((∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω) ↔ (∅ ⊆ ∪ {∅} ∧ {∅} ≼ ω)))
33	32	elrab 3684	. . . . . . 7 ⊢ ({∅} ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↔ ({∅} ∈ 𝒫 dom 𝑅 ∧ (∅ ⊆ ∪ {∅} ∧ {∅} ≼ ω)))
34	28, 33	sylibr 233	. . . . . 6 ⊢ (𝜑 → {∅} ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)})
35		simpr 486	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑦 = ∅) → 𝑦 = ∅)
36	35	fveq2d 6896	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑦 = ∅) → (𝑅‘𝑦) = (𝑅‘∅))
37		oms.0	. . . . . . . . . 10 ⊢ (𝜑 → (𝑅‘∅) = 0)
38	37	adantr 482	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑦 = ∅) → (𝑅‘∅) = 0)
39	36, 38	eqtrd 2773	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑦 = ∅) → (𝑅‘𝑦) = 0)
40	39, 18, 17	esumsn 33063	. . . . . . 7 ⊢ (𝜑 → Σ^*𝑦 ∈ {∅} (𝑅‘𝑦) = 0)
41	40	eqcomd 2739	. . . . . 6 ⊢ (𝜑 → 0 = Σ^*𝑦 ∈ {∅} (𝑅‘𝑦))
42		esumeq1 33032	. . . . . . 7 ⊢ (𝑥 = {∅} → Σ^𝑦 ∈ 𝑥(𝑅‘𝑦) = Σ^𝑦 ∈ {∅} (𝑅‘𝑦))
43	42	rspceeqv 3634	. . . . . 6 ⊢ (({∅} ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ∧ 0 = Σ^𝑦 ∈ {∅} (𝑅‘𝑦)) → ∃𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}0 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))
44	34, 41, 43	syl2anc 585	. . . . 5 ⊢ (𝜑 → ∃𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}0 = Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦))
45		0xr 11261	. . . . . 6 ⊢ 0 ∈ ℝ^*
46		eqid 2733	. . . . . . 7 ⊢ (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) = (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))
47	46	elrnmpt 5956	. . . . . 6 ⊢ (0 ∈ ℝ^* → (0 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) ↔ ∃𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}0 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)))
48	45, 47	ax-mp 5	. . . . 5 ⊢ (0 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) ↔ ∃𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}0 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))
49	44, 48	sylibr 233	. . . 4 ⊢ (𝜑 → 0 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦)))
50		nfv 1918	. . . . . . . 8 ⊢ Ⅎ𝑥𝜑
51		nfmpt1 5257	. . . . . . . . . 10 ⊢ Ⅎ𝑥(𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦))
52	51	nfrn 5952	. . . . . . . . 9 ⊢ Ⅎ𝑥ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦))
53	52	nfcri 2891	. . . . . . . 8 ⊢ Ⅎ𝑥 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦))
54	50, 53	nfan 1903	. . . . . . 7 ⊢ Ⅎ𝑥(𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦)))
55		simpr 486	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) ∧ 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}) ∧ 𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) → 𝑎 = Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦))
56		vex 3479	. . . . . . . . 9 ⊢ 𝑥 ∈ V
57		nfv 1918	. . . . . . . . . . . . 13 ⊢ Ⅎ𝑦𝜑
58		nfcv 2904	. . . . . . . . . . . . . . . 16 ⊢ Ⅎ𝑦{𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}
59		nfcv 2904	. . . . . . . . . . . . . . . . 17 ⊢ Ⅎ𝑦𝑥
60	59	nfesum1 33038	. . . . . . . . . . . . . . . 16 ⊢ Ⅎ𝑦Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦)
61	58, 60	nfmpt 5256	. . . . . . . . . . . . . . 15 ⊢ Ⅎ𝑦(𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦))
62	61	nfrn 5952	. . . . . . . . . . . . . 14 ⊢ Ⅎ𝑦ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦))
63	62	nfcri 2891	. . . . . . . . . . . . 13 ⊢ Ⅎ𝑦 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦))
64	57, 63	nfan 1903	. . . . . . . . . . . 12 ⊢ Ⅎ𝑦(𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦)))
65		nfv 1918	. . . . . . . . . . . 12 ⊢ Ⅎ𝑦 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}
66	64, 65	nfan 1903	. . . . . . . . . . 11 ⊢ Ⅎ𝑦((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦))) ∧ 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)})
67	60	nfeq2 2921	. . . . . . . . . . 11 ⊢ Ⅎ𝑦 𝑎 = Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦)
68	66, 67	nfan 1903	. . . . . . . . . 10 ⊢ Ⅎ𝑦(((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) ∧ 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}) ∧ 𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))
69	4	ad4antr 731	. . . . . . . . . . . 12 ⊢ (((((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) ∧ 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}) ∧ 𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) ∧ 𝑦 ∈ 𝑥) → 𝑅:𝑄⟶(0[,]+∞))
70		ssrab2 4078	. . . . . . . . . . . . . . . 16 ⊢ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ⊆ 𝒫 dom 𝑅
71		simpllr 775	. . . . . . . . . . . . . . . 16 ⊢ (((((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) ∧ 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}) ∧ 𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) ∧ 𝑦 ∈ 𝑥) → 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)})
72	70, 71	sselid 3981	. . . . . . . . . . . . . . 15 ⊢ (((((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) ∧ 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}) ∧ 𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) ∧ 𝑦 ∈ 𝑥) → 𝑥 ∈ 𝒫 dom 𝑅)
73	6	pweqd 4620	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → 𝒫 dom 𝑅 = 𝒫 𝑄)
74	73	ad4antr 731	. . . . . . . . . . . . . . 15 ⊢ (((((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) ∧ 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}) ∧ 𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) ∧ 𝑦 ∈ 𝑥) → 𝒫 dom 𝑅 = 𝒫 𝑄)
75	72, 74	eleqtrd 2836	. . . . . . . . . . . . . 14 ⊢ (((((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) ∧ 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}) ∧ 𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) ∧ 𝑦 ∈ 𝑥) → 𝑥 ∈ 𝒫 𝑄)
76	75	elpwid 4612	. . . . . . . . . . . . 13 ⊢ (((((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) ∧ 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}) ∧ 𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) ∧ 𝑦 ∈ 𝑥) → 𝑥 ⊆ 𝑄)
77		simpr 486	. . . . . . . . . . . . 13 ⊢ (((((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) ∧ 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}) ∧ 𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) ∧ 𝑦 ∈ 𝑥) → 𝑦 ∈ 𝑥)
78	76, 77	sseldd 3984	. . . . . . . . . . . 12 ⊢ (((((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) ∧ 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}) ∧ 𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) ∧ 𝑦 ∈ 𝑥) → 𝑦 ∈ 𝑄)
79	69, 78	ffvelcdmd 7088	. . . . . . . . . . 11 ⊢ (((((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) ∧ 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}) ∧ 𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) ∧ 𝑦 ∈ 𝑥) → (𝑅‘𝑦) ∈ (0[,]+∞))
80	79	ex 414	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) ∧ 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}) ∧ 𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) → (𝑦 ∈ 𝑥 → (𝑅‘𝑦) ∈ (0[,]+∞)))
81	68, 80	ralrimi 3255	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) ∧ 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}) ∧ 𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) → ∀𝑦 ∈ 𝑥 (𝑅‘𝑦) ∈ (0[,]+∞))
82	59	esumcl 33028	. . . . . . . . 9 ⊢ ((𝑥 ∈ V ∧ ∀𝑦 ∈ 𝑥 (𝑅‘𝑦) ∈ (0[,]+∞)) → Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦) ∈ (0[,]+∞))
83	56, 81, 82	sylancr 588	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) ∧ 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}) ∧ 𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) → Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦) ∈ (0[,]+∞))
84	55, 83	eqeltrd 2834	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) ∧ 𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}) ∧ 𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) → 𝑎 ∈ (0[,]+∞))
85		vex 3479	. . . . . . . . . 10 ⊢ 𝑎 ∈ V
86	46	elrnmpt 5956	. . . . . . . . . 10 ⊢ (𝑎 ∈ V → (𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) ↔ ∃𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)))
87	85, 86	ax-mp 5	. . . . . . . . 9 ⊢ (𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) ↔ ∃𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))
88	87	biimpi 215	. . . . . . . 8 ⊢ (𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦)) → ∃𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))
89	88	adantl 483	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) → ∃𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)}𝑎 = Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))
90	54, 84, 89	r19.29af 3266	. . . . . 6 ⊢ ((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦))) → 𝑎 ∈ (0[,]+∞))
91		pnfxr 11268	. . . . . . 7 ⊢ +∞ ∈ ℝ^*
92		iccgelb 13380	. . . . . . 7 ⊢ ((0 ∈ ℝ^* ∧ +∞ ∈ ℝ^* ∧ 𝑎 ∈ (0[,]+∞)) → 0 ≤ 𝑎)
93	45, 91, 92	mp3an12 1452	. . . . . 6 ⊢ (𝑎 ∈ (0[,]+∞) → 0 ≤ 𝑎)
94	90, 93	syl 17	. . . . 5 ⊢ ((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦))) → 0 ≤ 𝑎)
95	11, 90	sselid 3981	. . . . . 6 ⊢ ((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^𝑦 ∈ 𝑥(𝑅‘𝑦))) → 𝑎 ∈ ℝ^)
96		xrlenlt 11279	. . . . . . 7 ⊢ ((0 ∈ ℝ^* ∧ 𝑎 ∈ ℝ^*) → (0 ≤ 𝑎 ↔ ¬ 𝑎 < 0))
97	96	bicomd 222	. . . . . 6 ⊢ ((0 ∈ ℝ^* ∧ 𝑎 ∈ ℝ^*) → (¬ 𝑎 < 0 ↔ 0 ≤ 𝑎))
98	45, 95, 97	sylancr 588	. . . . 5 ⊢ ((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦))) → (¬ 𝑎 < 0 ↔ 0 ≤ 𝑎))
99	94, 98	mpbird 257	. . . 4 ⊢ ((𝜑 ∧ 𝑎 ∈ ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦))) → ¬ 𝑎 < 0)
100	15, 17, 49, 99	infmin 9489	. . 3 ⊢ (𝜑 → inf(ran (𝑥 ∈ {𝑧 ∈ 𝒫 dom 𝑅 ∣ (∅ ⊆ ∪ 𝑧 ∧ 𝑧 ≼ ω)} ↦ Σ^*𝑦 ∈ 𝑥(𝑅‘𝑦)), (0[,]+∞), < ) = 0)
101	10, 100	eqtrd 2773	. 2 ⊢ (𝜑 → ((toOMeas‘𝑅)‘∅) = 0)
102	2, 101	eqtrid 2785	1 ⊢ (𝜑 → (𝑀‘∅) = 0)

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 397 = wceq 1542 ∈ wcel 2107 ∀wral 3062 ∃wrex 3071 {crab 3433 Vcvv 3475 ⊆ wss 3949 ∅c0 4323 𝒫 cpw 4603 {csn 4629 ∪ cuni 4909 class class class wbr 5149 ↦ cmpt 5232 Or wor 5588 dom cdm 5677 ran crn 5678 ⟶wf 6540 ‘cfv 6544 (class class class)co 7409 ωcom 7855 ≼ cdom 8937 infcinf 9436 0cc0 11110 +∞cpnf 11245 ℝ^*cxr 11247 < clt 11248 ≤ cle 11249 [,]cicc 13327 Σ^*cesum 33025 toOMeascoms 33290

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 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-rep 5286 ax-sep 5300 ax-nul 5307 ax-pow 5364 ax-pr 5428 ax-un 7725 ax-inf2 9636 ax-cnex 11166 ax-resscn 11167 ax-1cn 11168 ax-icn 11169 ax-addcl 11170 ax-addrcl 11171 ax-mulcl 11172 ax-mulrcl 11173 ax-mulcom 11174 ax-addass 11175 ax-mulass 11176 ax-distr 11177 ax-i2m1 11178 ax-1ne0 11179 ax-1rid 11180 ax-rnegex 11181 ax-rrecex 11182 ax-cnre 11183 ax-pre-lttri 11184 ax-pre-lttrn 11185 ax-pre-ltadd 11186 ax-pre-mulgt0 11187 ax-pre-sup 11188

This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rmo 3377 df-reu 3378 df-rab 3434 df-v 3477 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-pss 3968 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-tp 4634 df-op 4636 df-uni 4910 df-int 4952 df-iun 5000 df-iin 5001 df-br 5150 df-opab 5212 df-mpt 5233 df-tr 5267 df-id 5575 df-eprel 5581 df-po 5589 df-so 5590 df-fr 5632 df-se 5633 df-we 5634 df-xp 5683 df-rel 5684 df-cnv 5685 df-co 5686 df-dm 5687 df-rn 5688 df-res 5689 df-ima 5690 df-pred 6301 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6496 df-fun 6546 df-fn 6547 df-f 6548 df-f1 6549 df-fo 6550 df-f1o 6551 df-fv 6552 df-isom 6553 df-riota 7365 df-ov 7412 df-oprab 7413 df-mpo 7414 df-of 7670 df-om 7856 df-1st 7975 df-2nd 7976 df-supp 8147 df-frecs 8266 df-wrecs 8297 df-recs 8371 df-rdg 8410 df-1o 8466 df-er 8703 df-map 8822 df-en 8940 df-dom 8941 df-sdom 8942 df-fin 8943 df-fsupp 9362 df-fi 9406 df-sup 9437 df-inf 9438 df-oi 9505 df-card 9934 df-pnf 11250 df-mnf 11251 df-xr 11252 df-ltxr 11253 df-le 11254 df-sub 11446 df-neg 11447 df-div 11872 df-nn 12213 df-2 12275 df-3 12276 df-4 12277 df-5 12278 df-6 12279 df-7 12280 df-8 12281 df-9 12282 df-n0 12473 df-z 12559 df-dec 12678 df-uz 12823 df-q 12933 df-xadd 13093 df-ioo 13328 df-ioc 13329 df-ico 13330 df-icc 13331 df-fz 13485 df-fzo 13628 df-seq 13967 df-hash 14291 df-struct 17080 df-sets 17097 df-slot 17115 df-ndx 17127 df-base 17145 df-ress 17174 df-plusg 17210 df-mulr 17211 df-tset 17216 df-ple 17217 df-ds 17219 df-rest 17368 df-topn 17369 df-0g 17387 df-gsum 17388 df-topgen 17389 df-ordt 17447 df-xrs 17448 df-mre 17530 df-mrc 17531 df-acs 17533 df-ps 18519 df-tsr 18520 df-mgm 18561 df-sgrp 18610 df-mnd 18626 df-submnd 18672 df-mulg 18951 df-cntz 19181 df-cmn 19650 df-fbas 20941 df-fg 20942 df-top 22396 df-topon 22413 df-topsp 22435 df-bases 22449 df-ntr 22524 df-nei 22602 df-cn 22731 df-haus 22819 df-fil 23350 df-fm 23442 df-flim 23443 df-flf 23444 df-tsms 23631 df-esum 33026 df-oms 33291

This theorem is referenced by: omsmeas 33322

W3C validator