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Theorem mbflimsup 25894

Description: The limit supremum of a sequence of measurable real-valued functions is measurable. (Contributed by Mario Carneiro, 7-Sep-2014.) (Revised by AV, 12-Sep-2020.)

**Hypotheses**
Ref	Expression
mbflimsup.1	⊢ 𝑍 = (ℤ_≥‘𝑀)
mbflimsup.2	⊢ 𝐺 = (𝑥 ∈ 𝐴 ↦ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)))
mbflimsup.h	⊢ 𝐻 = (𝑚 ∈ ℝ ↦ sup((((𝑛 ∈ 𝑍 ↦ 𝐵) “ (𝑚[,)+∞)) ∩ ℝ^), ℝ^, < ))
mbflimsup.3	⊢ (𝜑 → 𝑀 ∈ ℤ)
mbflimsup.4	⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ∈ ℝ)
mbflimsup.5	⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → (𝑥 ∈ 𝐴 ↦ 𝐵) ∈ MblFn)
mbflimsup.6	⊢ ((𝜑 ∧ (𝑛 ∈ 𝑍 ∧ 𝑥 ∈ 𝐴)) → 𝐵 ∈ ℝ)

**Assertion**
Ref	Expression
mbflimsup	⊢ (𝜑 → 𝐺 ∈ MblFn)

Distinct variable groups: 𝑥,𝑛,𝐴 𝐵,𝑚 𝜑,𝑛,𝑥 𝑚,𝑀 𝑚,𝑛,𝑥,𝑍 Allowed substitution hints: 𝜑(𝑚) 𝐴(𝑚) 𝐵(𝑥, 𝑛) 𝐺(𝑥, 𝑚, 𝑛) 𝐻(𝑥, 𝑚, 𝑛) 𝑀(𝑥, 𝑛)

Proof of Theorem mbflimsup Dummy variables 𝑖 𝑘 𝑦 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		mbflimsup.2	. . 3 ⊢ 𝐺 = (𝑥 ∈ 𝐴 ↦ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)))
2		mbflimsup.h	. . . . . 6 ⊢ 𝐻 = (𝑚 ∈ ℝ ↦ sup((((𝑛 ∈ 𝑍 ↦ 𝐵) “ (𝑚[,)+∞)) ∩ ℝ^), ℝ^, < ))
3		mbflimsup.1	. . . . . . . . 9 ⊢ 𝑍 = (ℤ_≥‘𝑀)
4	3	fvexi 6892	. . . . . . . 8 ⊢ 𝑍 ∈ V
5	4	mptex 7222	. . . . . . 7 ⊢ (𝑛 ∈ 𝑍 ↦ 𝐵) ∈ V
6	5	a1i 11	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝑛 ∈ 𝑍 ↦ 𝐵) ∈ V)
7		uzssz 12908	. . . . . . . . 9 ⊢ (ℤ_≥‘𝑀) ⊆ ℤ
8	3, 7	eqsstri 3977	. . . . . . . 8 ⊢ 𝑍 ⊆ ℤ
9		zssre 12622	. . . . . . . 8 ⊢ ℤ ⊆ ℝ
10	8, 9	sstri 3940	. . . . . . 7 ⊢ 𝑍 ⊆ ℝ
11	10	a1i 11	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝑍 ⊆ ℝ)
12		mbflimsup.3	. . . . . . . 8 ⊢ (𝜑 → 𝑀 ∈ ℤ)
13	3	uzsup 13924	. . . . . . . 8 ⊢ (𝑀 ∈ ℤ → sup(𝑍, ℝ^*, < ) = +∞)
14	12, 13	syl 18	. . . . . . 7 ⊢ (𝜑 → sup(𝑍, ℝ^*, < ) = +∞)
15	14	adantr 486	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → sup(𝑍, ℝ^*, < ) = +∞)
16	2, 6, 11, 15	limsupval2 15567	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) = inf((𝐻 “ 𝑍), ℝ^*, < ))
17		imassrn 6067	. . . . . . 7 ⊢ (𝐻 “ 𝑍) ⊆ ran 𝐻
18	12	adantr 486	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝑀 ∈ ℤ)
19		mbflimsup.6	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ (𝑛 ∈ 𝑍 ∧ 𝑥 ∈ 𝐴)) → 𝐵 ∈ ℝ)
20	19	anass1rs 668	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑛 ∈ 𝑍) → 𝐵 ∈ ℝ)
21	20	fmpttd 7108	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝑛 ∈ 𝑍 ↦ 𝐵):𝑍⟶ℝ)
22		mbflimsup.4	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ∈ ℝ)
23	22	ltpnfd 13172	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) < +∞)
24	2, 3	limsupgre 15568	. . . . . . . . 9 ⊢ ((𝑀 ∈ ℤ ∧ (𝑛 ∈ 𝑍 ↦ 𝐵):𝑍⟶ℝ ∧ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) < +∞) → 𝐻:ℝ⟶ℝ)
25	18, 21, 23, 24	syl3anc 1398	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐻:ℝ⟶ℝ)
26	25	frnd 6711	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → ran 𝐻 ⊆ ℝ)
27	17, 26	sstrid 3942	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝐻 “ 𝑍) ⊆ ℝ)
28	25	fdmd 6713	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → dom 𝐻 = ℝ)
29	28	ineq1d 4165	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (dom 𝐻 ∩ 𝑍) = (ℝ ∩ 𝑍))
30		sseqin2 4169	. . . . . . . . . 10 ⊢ (𝑍 ⊆ ℝ ↔ (ℝ ∩ 𝑍) = 𝑍)
31	10, 30	mpbi 233	. . . . . . . . 9 ⊢ (ℝ ∩ 𝑍) = 𝑍
32	29, 31	eqtrdi 2811	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (dom 𝐻 ∩ 𝑍) = 𝑍)
33		uzid 12902	. . . . . . . . . . . 12 ⊢ (𝑀 ∈ ℤ → 𝑀 ∈ (ℤ_≥‘𝑀))
34	12, 33	syl 18	. . . . . . . . . . 11 ⊢ (𝜑 → 𝑀 ∈ (ℤ_≥‘𝑀))
35	34, 3	eleqtrrdi 2871	. . . . . . . . . 10 ⊢ (𝜑 → 𝑀 ∈ 𝑍)
36	35	adantr 486	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝑀 ∈ 𝑍)
37	36	ne0d 4288	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝑍 ≠ ∅)
38	32, 37	eqnetrd 3022	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (dom 𝐻 ∩ 𝑍) ≠ ∅)
39		imadisj 6076	. . . . . . . 8 ⊢ ((𝐻 “ 𝑍) = ∅ ↔ (dom 𝐻 ∩ 𝑍) = ∅)
40	39	necon3bii 3007	. . . . . . 7 ⊢ ((𝐻 “ 𝑍) ≠ ∅ ↔ (dom 𝐻 ∩ 𝑍) ≠ ∅)
41	38, 40	sylibr 237	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝐻 “ 𝑍) ≠ ∅)
42	22	leidd 11804	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)))
43	20	rexrd 11283	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑛 ∈ 𝑍) → 𝐵 ∈ ℝ^*)
44	43	fmpttd 7108	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝑛 ∈ 𝑍 ↦ 𝐵):𝑍⟶ℝ^*)
45	22	rexrd 11283	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ∈ ℝ^*)
46	2	limsuple 15565	. . . . . . . . . . 11 ⊢ ((𝑍 ⊆ ℝ ∧ (𝑛 ∈ 𝑍 ↦ 𝐵):𝑍⟶ℝ^* ∧ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ∈ ℝ^*) → ((lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ↔ ∀𝑦 ∈ ℝ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑦)))
47	11, 44, 45, 46	syl3anc 1398	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → ((lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ↔ ∀𝑦 ∈ ℝ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑦)))
48	42, 47	mpbid 235	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → ∀𝑦 ∈ ℝ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑦))
49		ssralv 4000	. . . . . . . . 9 ⊢ (𝑍 ⊆ ℝ → (∀𝑦 ∈ ℝ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑦) → ∀𝑦 ∈ 𝑍 (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑦)))
50	10, 48, 49	mpsyl 69	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → ∀𝑦 ∈ 𝑍 (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑦))
51	2	limsupgf 15562	. . . . . . . . . 10 ⊢ 𝐻:ℝ⟶ℝ^*
52		ffn 6702	. . . . . . . . . 10 ⊢ (𝐻:ℝ⟶ℝ^* → 𝐻 Fn ℝ)
53	51, 52	ax-mp 5	. . . . . . . . 9 ⊢ 𝐻 Fn ℝ
54		breq2 5107	. . . . . . . . . 10 ⊢ (𝑧 = (𝐻‘𝑦) → ((lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ 𝑧 ↔ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑦)))
55	54	ralima 7236	. . . . . . . . 9 ⊢ ((𝐻 Fn ℝ ∧ 𝑍 ⊆ ℝ) → (∀𝑧 ∈ (𝐻 “ 𝑍)(lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ 𝑧 ↔ ∀𝑦 ∈ 𝑍 (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑦)))
56	53, 11, 55	sylancr 599	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (∀𝑧 ∈ (𝐻 “ 𝑍)(lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ 𝑧 ↔ ∀𝑦 ∈ 𝑍 (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑦)))
57	50, 56	mpbird 260	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → ∀𝑧 ∈ (𝐻 “ 𝑍)(lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ 𝑧)
58		breq1 5106	. . . . . . . . 9 ⊢ (𝑦 = (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) → (𝑦 ≤ 𝑧 ↔ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ 𝑧))
59	58	ralbidv 3185	. . . . . . . 8 ⊢ (𝑦 = (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) → (∀𝑧 ∈ (𝐻 “ 𝑍)𝑦 ≤ 𝑧 ↔ ∀𝑧 ∈ (𝐻 “ 𝑍)(lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ 𝑧))
60	59	rspcev 3576	. . . . . . 7 ⊢ (((lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ∈ ℝ ∧ ∀𝑧 ∈ (𝐻 “ 𝑍)(lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ 𝑧) → ∃𝑦 ∈ ℝ ∀𝑧 ∈ (𝐻 “ 𝑍)𝑦 ≤ 𝑧)
61	22, 57, 60	syl2anc 596	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → ∃𝑦 ∈ ℝ ∀𝑧 ∈ (𝐻 “ 𝑍)𝑦 ≤ 𝑧)
62		infxrre 13389	. . . . . 6 ⊢ (((𝐻 “ 𝑍) ⊆ ℝ ∧ (𝐻 “ 𝑍) ≠ ∅ ∧ ∃𝑦 ∈ ℝ ∀𝑧 ∈ (𝐻 “ 𝑍)𝑦 ≤ 𝑧) → inf((𝐻 “ 𝑍), ℝ^*, < ) = inf((𝐻 “ 𝑍), ℝ, < ))
63	27, 41, 61, 62	syl3anc 1398	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → inf((𝐻 “ 𝑍), ℝ^*, < ) = inf((𝐻 “ 𝑍), ℝ, < ))
64		df-ima 5668	. . . . . . 7 ⊢ (𝐻 “ 𝑍) = ran (𝐻 ↾ 𝑍)
65	25	feqmptd 6946	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐻 = (𝑖 ∈ ℝ ↦ (𝐻‘𝑖)))
66	65	reseq1d 5971	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝐻 ↾ 𝑍) = ((𝑖 ∈ ℝ ↦ (𝐻‘𝑖)) ↾ 𝑍))
67		resmpt 6033	. . . . . . . . . . 11 ⊢ (𝑍 ⊆ ℝ → ((𝑖 ∈ ℝ ↦ (𝐻‘𝑖)) ↾ 𝑍) = (𝑖 ∈ 𝑍 ↦ (𝐻‘𝑖)))
68	10, 67	ax-mp 5	. . . . . . . . . 10 ⊢ ((𝑖 ∈ ℝ ↦ (𝐻‘𝑖)) ↾ 𝑍) = (𝑖 ∈ 𝑍 ↦ (𝐻‘𝑖))
69	66, 68	eqtrdi 2811	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝐻 ↾ 𝑍) = (𝑖 ∈ 𝑍 ↦ (𝐻‘𝑖)))
70	10	sseli 3927	. . . . . . . . . . . . 13 ⊢ (𝑖 ∈ 𝑍 → 𝑖 ∈ ℝ)
71		ffvelcdm 7074	. . . . . . . . . . . . 13 ⊢ ((𝐻:ℝ⟶ℝ ∧ 𝑖 ∈ ℝ) → (𝐻‘𝑖) ∈ ℝ)
72	25, 70, 71	syl2an 608	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → (𝐻‘𝑖) ∈ ℝ)
73	72	rexrd 11283	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → (𝐻‘𝑖) ∈ ℝ^*)
74		simplll 787	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ 𝑛 ∈ (ℤ_≥‘𝑖)) → 𝜑)
75	3	uztrn2 12906	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑖 ∈ 𝑍 ∧ 𝑛 ∈ (ℤ_≥‘𝑖)) → 𝑛 ∈ 𝑍)
76	75	adantll 727	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ 𝑛 ∈ (ℤ_≥‘𝑖)) → 𝑛 ∈ 𝑍)
77		simpllr 788	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ 𝑛 ∈ (ℤ_≥‘𝑖)) → 𝑥 ∈ 𝐴)
78	74, 76, 77, 19	syl12anc 850	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ 𝑛 ∈ (ℤ_≥‘𝑖)) → 𝐵 ∈ ℝ)
79	78	fmpttd 7108	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵):(ℤ_≥‘𝑖)⟶ℝ)
80	79	frnd 6711	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) ⊆ ℝ)
81		eqid 2760	. . . . . . . . . . . . . . . 16 ⊢ (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) = (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)
82	81, 78	dmmptd 6677	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → dom (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) = (ℤ_≥‘𝑖))
83		simpr 490	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑍) → 𝑖 ∈ 𝑍)
84	83, 3	eleqtrdi 2870	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑍) → 𝑖 ∈ (ℤ_≥‘𝑀))
85		eluzelz 12897	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑖 ∈ (ℤ_≥‘𝑀) → 𝑖 ∈ ℤ)
86	84, 85	syl 18	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑍) → 𝑖 ∈ ℤ)
87	86	adantlr 728	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → 𝑖 ∈ ℤ)
88		uzid 12902	. . . . . . . . . . . . . . . 16 ⊢ (𝑖 ∈ ℤ → 𝑖 ∈ (ℤ_≥‘𝑖))
89		ne0i 4287	. . . . . . . . . . . . . . . 16 ⊢ (𝑖 ∈ (ℤ_≥‘𝑖) → (ℤ_≥‘𝑖) ≠ ∅)
90	87, 88, 89	3syl 19	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → (ℤ_≥‘𝑖) ≠ ∅)
91	82, 90	eqnetrd 3022	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → dom (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) ≠ ∅)
92		dm0rn0 5908	. . . . . . . . . . . . . . 15 ⊢ (dom (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) = ∅ ↔ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) = ∅)
93	92	necon3bii 3007	. . . . . . . . . . . . . 14 ⊢ (dom (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) ≠ ∅ ↔ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) ≠ ∅)
94	91, 93	sylib 221	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) ≠ ∅)
95	84	adantlr 728	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → 𝑖 ∈ (ℤ_≥‘𝑀))
96		uzss 12910	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑖 ∈ (ℤ_≥‘𝑀) → (ℤ_≥‘𝑖) ⊆ (ℤ_≥‘𝑀))
97	95, 96	syl 18	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → (ℤ_≥‘𝑖) ⊆ (ℤ_≥‘𝑀))
98	97, 3	sseqtrrdi 3972	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → (ℤ_≥‘𝑖) ⊆ 𝑍)
99	72	leidd 11804	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → (𝐻‘𝑖) ≤ (𝐻‘𝑖))
100	10	a1i 11	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → 𝑍 ⊆ ℝ)
101	44	adantr 486	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → (𝑛 ∈ 𝑍 ↦ 𝐵):𝑍⟶ℝ^*)
102		simpr 490	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → 𝑖 ∈ 𝑍)
103	10, 102	sselid 3929	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → 𝑖 ∈ ℝ)
104	2	limsupgle 15564	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝑍 ⊆ ℝ ∧ (𝑛 ∈ 𝑍 ↦ 𝐵):𝑍⟶ℝ^) ∧ 𝑖 ∈ ℝ ∧ (𝐻‘𝑖) ∈ ℝ^) → ((𝐻‘𝑖) ≤ (𝐻‘𝑖) ↔ ∀𝑘 ∈ 𝑍 (𝑖 ≤ 𝑘 → ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖))))
105	100, 101, 103, 73, 104	syl211anc 1403	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → ((𝐻‘𝑖) ≤ (𝐻‘𝑖) ↔ ∀𝑘 ∈ 𝑍 (𝑖 ≤ 𝑘 → ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖))))
106	99, 105	mpbid 235	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → ∀𝑘 ∈ 𝑍 (𝑖 ≤ 𝑘 → ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖)))
107		ssralv 4000	. . . . . . . . . . . . . . . . 17 ⊢ ((ℤ_≥‘𝑖) ⊆ 𝑍 → (∀𝑘 ∈ 𝑍 (𝑖 ≤ 𝑘 → ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖)) → ∀𝑘 ∈ (ℤ_≥‘𝑖)(𝑖 ≤ 𝑘 → ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖))))
108	98, 106, 107	sylc 66	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → ∀𝑘 ∈ (ℤ_≥‘𝑖)(𝑖 ≤ 𝑘 → ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖)))
109	98	adantr 486	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ 𝑘 ∈ (ℤ_≥‘𝑖)) → (ℤ_≥‘𝑖) ⊆ 𝑍)
110	109	resmptd 6036	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ 𝑘 ∈ (ℤ_≥‘𝑖)) → ((𝑛 ∈ 𝑍 ↦ 𝐵) ↾ (ℤ_≥‘𝑖)) = (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵))
111	110	fveq1d 6880	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ 𝑘 ∈ (ℤ_≥‘𝑖)) → (((𝑛 ∈ 𝑍 ↦ 𝐵) ↾ (ℤ_≥‘𝑖))‘𝑘) = ((𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)‘𝑘))
112		fvres 6897	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑘 ∈ (ℤ_≥‘𝑖) → (((𝑛 ∈ 𝑍 ↦ 𝐵) ↾ (ℤ_≥‘𝑖))‘𝑘) = ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘))
113	112	adantl 487	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ 𝑘 ∈ (ℤ_≥‘𝑖)) → (((𝑛 ∈ 𝑍 ↦ 𝐵) ↾ (ℤ_≥‘𝑖))‘𝑘) = ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘))
114	111, 113	eqtr3d 2797	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ 𝑘 ∈ (ℤ_≥‘𝑖)) → ((𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)‘𝑘) = ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘))
115	114	breq1d 5113	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ 𝑘 ∈ (ℤ_≥‘𝑖)) → (((𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖) ↔ ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖)))
116		eluzle 12900	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑘 ∈ (ℤ_≥‘𝑖) → 𝑖 ≤ 𝑘)
117	116	adantl 487	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ 𝑘 ∈ (ℤ_≥‘𝑖)) → 𝑖 ≤ 𝑘)
118		biimt 363	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑖 ≤ 𝑘 → (((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖) ↔ (𝑖 ≤ 𝑘 → ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖))))
119	117, 118	syl 18	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ 𝑘 ∈ (ℤ_≥‘𝑖)) → (((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖) ↔ (𝑖 ≤ 𝑘 → ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖))))
120	115, 119	bitrd 282	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ 𝑘 ∈ (ℤ_≥‘𝑖)) → (((𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖) ↔ (𝑖 ≤ 𝑘 → ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖))))
121	120	ralbidva 3183	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → (∀𝑘 ∈ (ℤ_≥‘𝑖)((𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖) ↔ ∀𝑘 ∈ (ℤ_≥‘𝑖)(𝑖 ≤ 𝑘 → ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖))))
122	108, 121	mpbird 260	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → ∀𝑘 ∈ (ℤ_≥‘𝑖)((𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖))
123		ffn 6702	. . . . . . . . . . . . . . . 16 ⊢ ((𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵):(ℤ_≥‘𝑖)⟶ℝ → (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) Fn (ℤ_≥‘𝑖))
124		breq1 5106	. . . . . . . . . . . . . . . . 17 ⊢ (𝑧 = ((𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)‘𝑘) → (𝑧 ≤ (𝐻‘𝑖) ↔ ((𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖)))
125	124	ralrn 7081	. . . . . . . . . . . . . . . 16 ⊢ ((𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) Fn (ℤ_≥‘𝑖) → (∀𝑧 ∈ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)𝑧 ≤ (𝐻‘𝑖) ↔ ∀𝑘 ∈ (ℤ_≥‘𝑖)((𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖)))
126	79, 123, 125	3syl 19	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → (∀𝑧 ∈ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)𝑧 ≤ (𝐻‘𝑖) ↔ ∀𝑘 ∈ (ℤ_≥‘𝑖)((𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)‘𝑘) ≤ (𝐻‘𝑖)))
127	122, 126	mpbird 260	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → ∀𝑧 ∈ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)𝑧 ≤ (𝐻‘𝑖))
128		brralrspcev 5165	. . . . . . . . . . . . . 14 ⊢ (((𝐻‘𝑖) ∈ ℝ ∧ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)𝑧 ≤ (𝐻‘𝑖)) → ∃𝑦 ∈ ℝ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)𝑧 ≤ 𝑦)
129	72, 127, 128	syl2anc 596	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → ∃𝑦 ∈ ℝ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)𝑧 ≤ 𝑦)
130	80, 94, 129	suprcld 12202	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ) ∈ ℝ)
131	130	rexrd 11283	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ) ∈ ℝ^*)
132	80	adantr 486	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ (𝑘 ∈ 𝑍 ∧ 𝑖 ≤ 𝑘)) → ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) ⊆ ℝ)
133	94	adantr 486	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ (𝑘 ∈ 𝑍 ∧ 𝑖 ≤ 𝑘)) → ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) ≠ ∅)
134	129	adantr 486	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ (𝑘 ∈ 𝑍 ∧ 𝑖 ≤ 𝑘)) → ∃𝑦 ∈ ℝ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)𝑧 ≤ 𝑦)
135	8	sseli 3927	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑘 ∈ 𝑍 → 𝑘 ∈ ℤ)
136		eluz 12901	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑖 ∈ ℤ ∧ 𝑘 ∈ ℤ) → (𝑘 ∈ (ℤ_≥‘𝑖) ↔ 𝑖 ≤ 𝑘))
137	87, 135, 136	syl2an 608	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ 𝑘 ∈ 𝑍) → (𝑘 ∈ (ℤ_≥‘𝑖) ↔ 𝑖 ≤ 𝑘))
138	137	biimprd 251	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ 𝑘 ∈ 𝑍) → (𝑖 ≤ 𝑘 → 𝑘 ∈ (ℤ_≥‘𝑖)))
139	138	impr 460	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ (𝑘 ∈ 𝑍 ∧ 𝑖 ≤ 𝑘)) → 𝑘 ∈ (ℤ_≥‘𝑖))
140	139, 114	syldan 603	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ (𝑘 ∈ 𝑍 ∧ 𝑖 ≤ 𝑘)) → ((𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)‘𝑘) = ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘))
141	79	adantr 486	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ (𝑘 ∈ 𝑍 ∧ 𝑖 ≤ 𝑘)) → (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵):(ℤ_≥‘𝑖)⟶ℝ)
142	141, 123	syl 18	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ (𝑘 ∈ 𝑍 ∧ 𝑖 ≤ 𝑘)) → (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) Fn (ℤ_≥‘𝑖))
143		fnfvelrn 7073	. . . . . . . . . . . . . . . . 17 ⊢ (((𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) Fn (ℤ_≥‘𝑖) ∧ 𝑘 ∈ (ℤ_≥‘𝑖)) → ((𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)‘𝑘) ∈ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵))
144	142, 139, 143	syl2anc 596	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ (𝑘 ∈ 𝑍 ∧ 𝑖 ≤ 𝑘)) → ((𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)‘𝑘) ∈ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵))
145	140, 144	eqeltrrd 2861	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ (𝑘 ∈ 𝑍 ∧ 𝑖 ≤ 𝑘)) → ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ∈ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵))
146	132, 133, 134, 145	suprubd 12201	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ (𝑘 ∈ 𝑍 ∧ 𝑖 ≤ 𝑘)) → ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ))
147	146	expr 462	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) ∧ 𝑘 ∈ 𝑍) → (𝑖 ≤ 𝑘 → ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )))
148	147	ralrimiva 3154	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → ∀𝑘 ∈ 𝑍 (𝑖 ≤ 𝑘 → ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )))
149	2	limsupgle 15564	. . . . . . . . . . . . 13 ⊢ (((𝑍 ⊆ ℝ ∧ (𝑛 ∈ 𝑍 ↦ 𝐵):𝑍⟶ℝ^) ∧ 𝑖 ∈ ℝ ∧ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ) ∈ ℝ^) → ((𝐻‘𝑖) ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ) ↔ ∀𝑘 ∈ 𝑍 (𝑖 ≤ 𝑘 → ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ))))
150	100, 101, 103, 131, 149	syl211anc 1403	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → ((𝐻‘𝑖) ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ) ↔ ∀𝑘 ∈ 𝑍 (𝑖 ≤ 𝑘 → ((𝑛 ∈ 𝑍 ↦ 𝐵)‘𝑘) ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ))))
151	148, 150	mpbird 260	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → (𝐻‘𝑖) ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ))
152		suprleub 12205	. . . . . . . . . . . . 13 ⊢ (((ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) ⊆ ℝ ∧ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵) ≠ ∅ ∧ ∃𝑦 ∈ ℝ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)𝑧 ≤ 𝑦) ∧ (𝐻‘𝑖) ∈ ℝ) → (sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ) ≤ (𝐻‘𝑖) ↔ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)𝑧 ≤ (𝐻‘𝑖)))
153	80, 94, 129, 72, 152	syl31anc 1400	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → (sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ) ≤ (𝐻‘𝑖) ↔ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)𝑧 ≤ (𝐻‘𝑖)))
154	127, 153	mpbird 260	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ) ≤ (𝐻‘𝑖))
155	73, 131, 151, 154	xrletrid 13206	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → (𝐻‘𝑖) = sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ))
156	155	mpteq2dva 5198	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝑖 ∈ 𝑍 ↦ (𝐻‘𝑖)) = (𝑖 ∈ 𝑍 ↦ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )))
157	69, 156	eqtrd 2795	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝐻 ↾ 𝑍) = (𝑖 ∈ 𝑍 ↦ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )))
158	157	rneqd 5922	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → ran (𝐻 ↾ 𝑍) = ran (𝑖 ∈ 𝑍 ↦ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )))
159	64, 158	eqtrid 2807	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝐻 “ 𝑍) = ran (𝑖 ∈ 𝑍 ↦ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )))
160	159	infeq1d 9448	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → inf((𝐻 “ 𝑍), ℝ, < ) = inf(ran (𝑖 ∈ 𝑍 ↦ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )), ℝ, < ))
161	16, 63, 160	3eqtrd 2799	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) = inf(ran (𝑖 ∈ 𝑍 ↦ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )), ℝ, < ))
162	161	mpteq2dva 5198	. . 3 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵))) = (𝑥 ∈ 𝐴 ↦ inf(ran (𝑖 ∈ 𝑍 ↦ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )), ℝ, < )))
163	1, 162	eqtrid 2807	. 2 ⊢ (𝜑 → 𝐺 = (𝑥 ∈ 𝐴 ↦ inf(ran (𝑖 ∈ 𝑍 ↦ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )), ℝ, < )))
164		eqid 2760	. . 3 ⊢ (𝑥 ∈ 𝐴 ↦ inf(ran (𝑖 ∈ 𝑍 ↦ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )), ℝ, < )) = (𝑥 ∈ 𝐴 ↦ inf(ran (𝑖 ∈ 𝑍 ↦ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )), ℝ, < ))
165		eqid 2760	. . . 4 ⊢ (ℤ_≥‘𝑖) = (ℤ_≥‘𝑖)
166		eqid 2760	. . . 4 ⊢ (𝑥 ∈ 𝐴 ↦ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )) = (𝑥 ∈ 𝐴 ↦ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ))
167		simpll 779	. . . . 5 ⊢ (((𝜑 ∧ 𝑖 ∈ 𝑍) ∧ 𝑛 ∈ (ℤ_≥‘𝑖)) → 𝜑)
168	75	adantll 727	. . . . 5 ⊢ (((𝜑 ∧ 𝑖 ∈ 𝑍) ∧ 𝑛 ∈ (ℤ_≥‘𝑖)) → 𝑛 ∈ 𝑍)
169		mbflimsup.5	. . . . 5 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → (𝑥 ∈ 𝐴 ↦ 𝐵) ∈ MblFn)
170	167, 168, 169	syl2anc 596	. . . 4 ⊢ (((𝜑 ∧ 𝑖 ∈ 𝑍) ∧ 𝑛 ∈ (ℤ_≥‘𝑖)) → (𝑥 ∈ 𝐴 ↦ 𝐵) ∈ MblFn)
171		simpll 779	. . . . 5 ⊢ (((𝜑 ∧ 𝑖 ∈ 𝑍) ∧ (𝑛 ∈ (ℤ_≥‘𝑖) ∧ 𝑥 ∈ 𝐴)) → 𝜑)
172	75	ad2ant2lr 761	. . . . 5 ⊢ (((𝜑 ∧ 𝑖 ∈ 𝑍) ∧ (𝑛 ∈ (ℤ_≥‘𝑖) ∧ 𝑥 ∈ 𝐴)) → 𝑛 ∈ 𝑍)
173		simprr 785	. . . . 5 ⊢ (((𝜑 ∧ 𝑖 ∈ 𝑍) ∧ (𝑛 ∈ (ℤ_≥‘𝑖) ∧ 𝑥 ∈ 𝐴)) → 𝑥 ∈ 𝐴)
174	171, 172, 173, 19	syl12anc 850	. . . 4 ⊢ (((𝜑 ∧ 𝑖 ∈ 𝑍) ∧ (𝑛 ∈ (ℤ_≥‘𝑖) ∧ 𝑥 ∈ 𝐴)) → 𝐵 ∈ ℝ)
175	78	ralrimiva 3154	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → ∀𝑛 ∈ (ℤ_≥‘𝑖)𝐵 ∈ ℝ)
176		breq1 5106	. . . . . . . . 9 ⊢ (𝑧 = 𝐵 → (𝑧 ≤ 𝑦 ↔ 𝐵 ≤ 𝑦))
177	81, 176	ralrnmptw 7087	. . . . . . . 8 ⊢ (∀𝑛 ∈ (ℤ_≥‘𝑖)𝐵 ∈ ℝ → (∀𝑧 ∈ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)𝑧 ≤ 𝑦 ↔ ∀𝑛 ∈ (ℤ_≥‘𝑖)𝐵 ≤ 𝑦))
178	175, 177	syl 18	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → (∀𝑧 ∈ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)𝑧 ≤ 𝑦 ↔ ∀𝑛 ∈ (ℤ_≥‘𝑖)𝐵 ≤ 𝑦))
179	178	rexbidv 3186	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → (∃𝑦 ∈ ℝ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵)𝑧 ≤ 𝑦 ↔ ∃𝑦 ∈ ℝ ∀𝑛 ∈ (ℤ_≥‘𝑖)𝐵 ≤ 𝑦))
180	129, 179	mpbid 235	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → ∃𝑦 ∈ ℝ ∀𝑛 ∈ (ℤ_≥‘𝑖)𝐵 ≤ 𝑦)
181	180	an32s 665	. . . 4 ⊢ (((𝜑 ∧ 𝑖 ∈ 𝑍) ∧ 𝑥 ∈ 𝐴) → ∃𝑦 ∈ ℝ ∀𝑛 ∈ (ℤ_≥‘𝑖)𝐵 ≤ 𝑦)
182	165, 166, 86, 170, 174, 181	mbfsup 25892	. . 3 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑍) → (𝑥 ∈ 𝐴 ↦ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )) ∈ MblFn)
183	130	an32s 665	. . . 4 ⊢ (((𝜑 ∧ 𝑖 ∈ 𝑍) ∧ 𝑥 ∈ 𝐴) → sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ) ∈ ℝ)
184	183	anasss 472	. . 3 ⊢ ((𝜑 ∧ (𝑖 ∈ 𝑍 ∧ 𝑥 ∈ 𝐴)) → sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ) ∈ ℝ)
185	2	limsuple 15565	. . . . . . . 8 ⊢ ((𝑍 ⊆ ℝ ∧ (𝑛 ∈ 𝑍 ↦ 𝐵):𝑍⟶ℝ^* ∧ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ∈ ℝ^*) → ((lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ↔ ∀𝑖 ∈ ℝ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑖)))
186	11, 44, 45, 185	syl3anc 1398	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → ((lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ↔ ∀𝑖 ∈ ℝ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑖)))
187	42, 186	mpbid 235	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → ∀𝑖 ∈ ℝ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑖))
188		ssralv 4000	. . . . . 6 ⊢ (𝑍 ⊆ ℝ → (∀𝑖 ∈ ℝ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑖) → ∀𝑖 ∈ 𝑍 (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑖)))
189	10, 187, 188	mpsyl 69	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → ∀𝑖 ∈ 𝑍 (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑖))
190	155	breq2d 5115	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑖 ∈ 𝑍) → ((lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑖) ↔ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )))
191	190	ralbidva 3183	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (∀𝑖 ∈ 𝑍 (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ (𝐻‘𝑖) ↔ ∀𝑖 ∈ 𝑍 (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )))
192	189, 191	mpbid 235	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → ∀𝑖 ∈ 𝑍 (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ))
193		breq1 5106	. . . . . 6 ⊢ (𝑦 = (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) → (𝑦 ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ) ↔ (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )))
194	193	ralbidv 3185	. . . . 5 ⊢ (𝑦 = (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) → (∀𝑖 ∈ 𝑍 𝑦 ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ) ↔ ∀𝑖 ∈ 𝑍 (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )))
195	194	rspcev 3576	. . . 4 ⊢ (((lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ∈ ℝ ∧ ∀𝑖 ∈ 𝑍 (lim sup‘(𝑛 ∈ 𝑍 ↦ 𝐵)) ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )) → ∃𝑦 ∈ ℝ ∀𝑖 ∈ 𝑍 𝑦 ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ))
196	22, 192, 195	syl2anc 596	. . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → ∃𝑦 ∈ ℝ ∀𝑖 ∈ 𝑍 𝑦 ≤ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < ))
197	3, 164, 12, 182, 184, 196	mbfinf 25893	. 2 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ inf(ran (𝑖 ∈ 𝑍 ↦ sup(ran (𝑛 ∈ (ℤ_≥‘𝑖) ↦ 𝐵), ℝ, < )), ℝ, < )) ∈ MblFn)
198	163, 197	eqeltrd 2860	1 ⊢ (𝜑 → 𝐺 ∈ MblFn)

Colors of variables: wff setvar class

This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ≠ wne 2955 ∀wral 3076 ∃wrex 3086 Vcvv 3450 ∩ cin 3898 ⊆ wss 3899 ∅c0 4279 class class class wbr 5103 ↦ cmpt 5186 dom cdm 5655 ran crn 5656 ↾ cres 5657 “ cima 5658 Fn wfn 6528 ⟶wf 6529 ‘cfv 6533 (class class class)co 7413 supcsup 9410 infcinf 9411 ℝcr 11123 +∞cpnf 11264 ℝ^*cxr 11266 < clt 11267 ≤ cle 11268 ℤcz 12615 ℤ_≥cuz 12887 [,)cico 13400 lim supclsp 15557 MblFncmbf 25842

This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-rep 5232 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7736 ax-inf2 9620 ax-cc 10437 ax-cnex 11180 ax-resscn 11181 ax-1cn 11182 ax-icn 11183 ax-addcl 11184 ax-addrcl 11185 ax-mulcl 11186 ax-mulrcl 11187 ax-mulcom 11188 ax-addass 11189 ax-mulass 11190 ax-distr 11191 ax-i2m1 11192 ax-1ne0 11193 ax-1rid 11194 ax-rnegex 11195 ax-rrecex 11196 ax-cnre 11197 ax-pre-lttri 11198 ax-pre-lttrn 11199 ax-pre-ltadd 11200 ax-pre-mulgt0 11201 ax-pre-sup 11202

This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-disj 5071 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-se 5609 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-isom 6542 df-riota 7370 df-ov 7416 df-oprab 7417 df-mpo 7418 df-of 7678 df-om 7863 df-1st 7986 df-2nd 7987 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-1o 8455 df-2o 8456 df-oadd 8459 df-omul 8460 df-er 8696 df-map 8828 df-pm 8829 df-en 8953 df-dom 8954 df-sdom 8955 df-fin 8956 df-sup 9412 df-inf 9413 df-oi 9482 df-dju 9906 df-card 9944 df-acn 9947 df-pnf 11269 df-mnf 11270 df-xr 11271 df-ltxr 11272 df-le 11273 df-sub 11467 df-neg 11468 df-div 11896 df-nn 12258 df-2 12327 df-3 12328 df-n0 12529 df-z 12616 df-uz 12888 df-q 12998 df-rp 13043 df-xadd 13164 df-ioo 13402 df-ioc 13403 df-ico 13404 df-icc 13405 df-fz 13562 df-fzo 13710 df-fl 13853 df-seq 14066 df-exp 14126 df-hash 14395 df-cj 15186 df-re 15187 df-im 15188 df-sqrt 15322 df-abs 15323 df-limsup 15558 df-clim 15575 df-rlim 15576 df-sum 15774 df-xmet 21578 df-met 21579 df-ovol 25692 df-vol 25693 df-mbf 25847

This theorem is used by: mbflimlem 25895

W3C validator