fourierdlem47 - Mathbox for Glauco Siliprandi

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Theorem fourierdlem47 45168

Description: For 𝑟 large enough, the final expression is less than the given positive 𝐸. (Contributed by Glauco Siliprandi, 11-Dec-2019.)

**Hypotheses**
Ref	Expression
fourierdlem47.ibl	⊢ (𝜑 → (𝑥 ∈ 𝐼 ↦ 𝐹) ∈ 𝐿¹)
fourierdlem47.iblmul	⊢ ((𝜑 ∧ 𝑟 ∈ ℝ) → (𝑥 ∈ 𝐼 ↦ (𝐹 · -𝐺)) ∈ 𝐿¹)
fourierdlem47.f	⊢ ((𝜑 ∧ 𝑥 ∈ 𝐼) → 𝐹 ∈ ℂ)
fourierdlem47.g	⊢ (((𝜑 ∧ 𝑥 ∈ 𝐼) ∧ 𝑟 ∈ ℂ) → 𝐺 ∈ ℂ)
fourierdlem47.absg	⊢ (((𝜑 ∧ 𝑥 ∈ 𝐼) ∧ 𝑟 ∈ ℝ) → (abs‘𝐺) ≤ 1)
fourierdlem47.a	⊢ (𝜑 → 𝐴 ∈ ℂ)
fourierdlem47.x	⊢ 𝑋 = (abs‘𝐴)
fourierdlem47.c	⊢ (𝜑 → 𝐶 ∈ ℂ)
fourierdlem47.y	⊢ 𝑌 = (abs‘𝐶)
fourierdlem47.z	⊢ 𝑍 = ∫𝐼(abs‘𝐹) d𝑥
fourierdlem47.e	⊢ (𝜑 → 𝐸 ∈ ℝ⁺)
fourierdlem47.b	⊢ ((𝜑 ∧ 𝑟 ∈ ℂ) → 𝐵 ∈ ℂ)
fourierdlem47.absb	⊢ ((𝜑 ∧ 𝑟 ∈ ℝ) → (abs‘𝐵) ≤ 1)
fourierdlem47.d	⊢ ((𝜑 ∧ 𝑟 ∈ ℂ) → 𝐷 ∈ ℂ)
fourierdlem47.absd	⊢ ((𝜑 ∧ 𝑟 ∈ ℝ) → (abs‘𝐷) ≤ 1)
fourierdlem47.m	⊢ 𝑀 = ((⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)) + 1)

**Assertion**
Ref	Expression
fourierdlem47	⊢ (𝜑 → ∃𝑚 ∈ ℕ ∀𝑟 ∈ (𝑚(,)+∞)(abs‘(((𝐴 · -(𝐵 / 𝑟)) − (𝐶 · -(𝐷 / 𝑟))) − ∫𝐼(𝐹 · -(𝐺 / 𝑟)) d𝑥)) < 𝐸)

Distinct variable groups: 𝐴,𝑚 𝐵,𝑚 𝐶,𝑚 𝐷,𝑚 𝑚,𝐸 𝑚,𝐹 𝑚,𝐺 𝑚,𝐼,𝑥 𝑚,𝑀,𝑟,𝑥 𝜑,𝑟,𝑥 Allowed substitution hints: 𝜑(𝑚) 𝐴(𝑥,𝑟) 𝐵(𝑥,𝑟) 𝐶(𝑥,𝑟) 𝐷(𝑥,𝑟) 𝐸(𝑥,𝑟) 𝐹(𝑥,𝑟) 𝐺(𝑥,𝑟) 𝐼(𝑟) 𝑋(𝑥,𝑚,𝑟) 𝑌(𝑥,𝑚,𝑟) 𝑍(𝑥,𝑚,𝑟)

**Proof of Theorem fourierdlem47**
Step	Hyp	Ref	Expression
1		fourierdlem47.m	. . 3 ⊢ 𝑀 = ((⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)) + 1)
2		fourierdlem47.x	. . . . . . . . . . 11 ⊢ 𝑋 = (abs‘𝐴)
3		fourierdlem47.a	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝐴 ∈ ℂ)
4	3	abscld 15388	. . . . . . . . . . 11 ⊢ (𝜑 → (abs‘𝐴) ∈ ℝ)
5	2, 4	eqeltrid 2836	. . . . . . . . . 10 ⊢ (𝜑 → 𝑋 ∈ ℝ)
6		fourierdlem47.y	. . . . . . . . . . 11 ⊢ 𝑌 = (abs‘𝐶)
7		fourierdlem47.c	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝐶 ∈ ℂ)
8	7	abscld 15388	. . . . . . . . . . 11 ⊢ (𝜑 → (abs‘𝐶) ∈ ℝ)
9	6, 8	eqeltrid 2836	. . . . . . . . . 10 ⊢ (𝜑 → 𝑌 ∈ ℝ)
10	5, 9	readdcld 11248	. . . . . . . . 9 ⊢ (𝜑 → (𝑋 + 𝑌) ∈ ℝ)
11		fourierdlem47.z	. . . . . . . . . 10 ⊢ 𝑍 = ∫𝐼(abs‘𝐹) d𝑥
12		fourierdlem47.f	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐼) → 𝐹 ∈ ℂ)
13	12	abscld 15388	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐼) → (abs‘𝐹) ∈ ℝ)
14		fourierdlem47.ibl	. . . . . . . . . . . 12 ⊢ (𝜑 → (𝑥 ∈ 𝐼 ↦ 𝐹) ∈ 𝐿¹)
15	12, 14	iblabs 25579	. . . . . . . . . . 11 ⊢ (𝜑 → (𝑥 ∈ 𝐼 ↦ (abs‘𝐹)) ∈ 𝐿¹)
16	13, 15	itgrecl 25548	. . . . . . . . . 10 ⊢ (𝜑 → ∫𝐼(abs‘𝐹) d𝑥 ∈ ℝ)
17	11, 16	eqeltrid 2836	. . . . . . . . 9 ⊢ (𝜑 → 𝑍 ∈ ℝ)
18	10, 17	readdcld 11248	. . . . . . . 8 ⊢ (𝜑 → ((𝑋 + 𝑌) + 𝑍) ∈ ℝ)
19		fourierdlem47.e	. . . . . . . . 9 ⊢ (𝜑 → 𝐸 ∈ ℝ⁺)
20	19	rpred 13021	. . . . . . . 8 ⊢ (𝜑 → 𝐸 ∈ ℝ)
21	19	rpne0d 13026	. . . . . . . 8 ⊢ (𝜑 → 𝐸 ≠ 0)
22	18, 20, 21	redivcld 12047	. . . . . . 7 ⊢ (𝜑 → (((𝑋 + 𝑌) + 𝑍) / 𝐸) ∈ ℝ)
23		1red 11220	. . . . . . 7 ⊢ (𝜑 → 1 ∈ ℝ)
24	22, 23	readdcld 11248	. . . . . 6 ⊢ (𝜑 → ((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1) ∈ ℝ)
25	24	flcld 13768	. . . . 5 ⊢ (𝜑 → (⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)) ∈ ℤ)
26		0red 11222	. . . . . 6 ⊢ (𝜑 → 0 ∈ ℝ)
27		reflcl 13766	. . . . . . 7 ⊢ (((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1) ∈ ℝ → (⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)) ∈ ℝ)
28	24, 27	syl 17	. . . . . 6 ⊢ (𝜑 → (⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)) ∈ ℝ)
29		0lt1 11741	. . . . . . 7 ⊢ 0 < 1
30	29	a1i 11	. . . . . 6 ⊢ (𝜑 → 0 < 1)
31	3	absge0d 15396	. . . . . . . . . . . . 13 ⊢ (𝜑 → 0 ≤ (abs‘𝐴))
32	31, 2	breqtrrdi 5190	. . . . . . . . . . . 12 ⊢ (𝜑 → 0 ≤ 𝑋)
33	7	absge0d 15396	. . . . . . . . . . . . 13 ⊢ (𝜑 → 0 ≤ (abs‘𝐶))
34	33, 6	breqtrrdi 5190	. . . . . . . . . . . 12 ⊢ (𝜑 → 0 ≤ 𝑌)
35	5, 9, 32, 34	addge0d 11795	. . . . . . . . . . 11 ⊢ (𝜑 → 0 ≤ (𝑋 + 𝑌))
36	12	absge0d 15396	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐼) → 0 ≤ (abs‘𝐹))
37	15, 13, 36	itgge0 25561	. . . . . . . . . . . 12 ⊢ (𝜑 → 0 ≤ ∫𝐼(abs‘𝐹) d𝑥)
38	37, 11	breqtrrdi 5190	. . . . . . . . . . 11 ⊢ (𝜑 → 0 ≤ 𝑍)
39	10, 17, 35, 38	addge0d 11795	. . . . . . . . . 10 ⊢ (𝜑 → 0 ≤ ((𝑋 + 𝑌) + 𝑍))
40	18, 19, 39	divge0d 13061	. . . . . . . . 9 ⊢ (𝜑 → 0 ≤ (((𝑋 + 𝑌) + 𝑍) / 𝐸))
41		flge0nn0 13790	. . . . . . . . 9 ⊢ (((((𝑋 + 𝑌) + 𝑍) / 𝐸) ∈ ℝ ∧ 0 ≤ (((𝑋 + 𝑌) + 𝑍) / 𝐸)) → (⌊‘(((𝑋 + 𝑌) + 𝑍) / 𝐸)) ∈ ℕ₀)
42	22, 40, 41	syl2anc 583	. . . . . . . 8 ⊢ (𝜑 → (⌊‘(((𝑋 + 𝑌) + 𝑍) / 𝐸)) ∈ ℕ₀)
43		nn0addge1 12523	. . . . . . . 8 ⊢ ((1 ∈ ℝ ∧ (⌊‘(((𝑋 + 𝑌) + 𝑍) / 𝐸)) ∈ ℕ₀) → 1 ≤ (1 + (⌊‘(((𝑋 + 𝑌) + 𝑍) / 𝐸))))
44	23, 42, 43	syl2anc 583	. . . . . . 7 ⊢ (𝜑 → 1 ≤ (1 + (⌊‘(((𝑋 + 𝑌) + 𝑍) / 𝐸))))
45		1z 12597	. . . . . . . . 9 ⊢ 1 ∈ ℤ
46		fladdz 13795	. . . . . . . . 9 ⊢ (((((𝑋 + 𝑌) + 𝑍) / 𝐸) ∈ ℝ ∧ 1 ∈ ℤ) → (⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)) = ((⌊‘(((𝑋 + 𝑌) + 𝑍) / 𝐸)) + 1))
47	22, 45, 46	sylancl 585	. . . . . . . 8 ⊢ (𝜑 → (⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)) = ((⌊‘(((𝑋 + 𝑌) + 𝑍) / 𝐸)) + 1))
48	42	nn0cnd 12539	. . . . . . . . 9 ⊢ (𝜑 → (⌊‘(((𝑋 + 𝑌) + 𝑍) / 𝐸)) ∈ ℂ)
49	23	recnd 11247	. . . . . . . . 9 ⊢ (𝜑 → 1 ∈ ℂ)
50	48, 49	addcomd 11421	. . . . . . . 8 ⊢ (𝜑 → ((⌊‘(((𝑋 + 𝑌) + 𝑍) / 𝐸)) + 1) = (1 + (⌊‘(((𝑋 + 𝑌) + 𝑍) / 𝐸))))
51	47, 50	eqtr2d 2772	. . . . . . 7 ⊢ (𝜑 → (1 + (⌊‘(((𝑋 + 𝑌) + 𝑍) / 𝐸))) = (⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)))
52	44, 51	breqtrd 5174	. . . . . 6 ⊢ (𝜑 → 1 ≤ (⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)))
53	26, 23, 28, 30, 52	ltletrd 11379	. . . . 5 ⊢ (𝜑 → 0 < (⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)))
54		elnnz 12573	. . . . 5 ⊢ ((⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)) ∈ ℕ ↔ ((⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)) ∈ ℤ ∧ 0 < (⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1))))
55	25, 53, 54	sylanbrc 582	. . . 4 ⊢ (𝜑 → (⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)) ∈ ℕ)
56	55	peano2nnd 12234	. . 3 ⊢ (𝜑 → ((⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)) + 1) ∈ ℕ)
57	1, 56	eqeltrid 2836	. 2 ⊢ (𝜑 → 𝑀 ∈ ℕ)
58		elioore 13359	. . . . 5 ⊢ (𝑟 ∈ (𝑀(,)+∞) → 𝑟 ∈ ℝ)
59		fourierdlem47.iblmul	. . . . 5 ⊢ ((𝜑 ∧ 𝑟 ∈ ℝ) → (𝑥 ∈ 𝐼 ↦ (𝐹 · -𝐺)) ∈ 𝐿¹)
60	58, 59	sylan2 592	. . . 4 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (𝑥 ∈ 𝐼 ↦ (𝐹 · -𝐺)) ∈ 𝐿¹)
61	12	adantlr 712	. . . 4 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → 𝐹 ∈ ℂ)
62		simpll 764	. . . . 5 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → 𝜑)
63		simpr 484	. . . . 5 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → 𝑥 ∈ 𝐼)
64	58	ad2antlr 724	. . . . . 6 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → 𝑟 ∈ ℝ)
65	64	recnd 11247	. . . . 5 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → 𝑟 ∈ ℂ)
66		fourierdlem47.g	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐼) ∧ 𝑟 ∈ ℂ) → 𝐺 ∈ ℂ)
67	62, 63, 65, 66	syl21anc 835	. . . 4 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → 𝐺 ∈ ℂ)
68	3	adantr 480	. . . 4 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝐴 ∈ ℂ)
69	7	adantr 480	. . . 4 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝐶 ∈ ℂ)
70		eqid 2731	. . . 4 ⊢ (abs‘∫𝐼(𝐹 · -𝐺) d𝑥) = (abs‘∫𝐼(𝐹 · -𝐺) d𝑥)
71	19	adantr 480	. . . 4 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝐸 ∈ ℝ⁺)
72	58	adantl 481	. . . 4 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝑟 ∈ ℝ)
73	2	eqcomi 2740	. . . . . . . . . 10 ⊢ (abs‘𝐴) = 𝑋
74	6	eqcomi 2740	. . . . . . . . . 10 ⊢ (abs‘𝐶) = 𝑌
75	73, 74	oveq12i 7424	. . . . . . . . 9 ⊢ ((abs‘𝐴) + (abs‘𝐶)) = (𝑋 + 𝑌)
76	75	oveq1i 7422	. . . . . . . 8 ⊢ (((abs‘𝐴) + (abs‘𝐶)) + (abs‘∫𝐼(𝐹 · -𝐺) d𝑥)) = ((𝑋 + 𝑌) + (abs‘∫𝐼(𝐹 · -𝐺) d𝑥))
77	4	adantr 480	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (abs‘𝐴) ∈ ℝ)
78	8	adantr 480	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (abs‘𝐶) ∈ ℝ)
79	77, 78	readdcld 11248	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → ((abs‘𝐴) + (abs‘𝐶)) ∈ ℝ)
80	67	negcld 11563	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → -𝐺 ∈ ℂ)
81	61, 80	mulcld 11239	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → (𝐹 · -𝐺) ∈ ℂ)
82	81, 60	itgcl 25534	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → ∫𝐼(𝐹 · -𝐺) d𝑥 ∈ ℂ)
83	82	abscld 15388	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (abs‘∫𝐼(𝐹 · -𝐺) d𝑥) ∈ ℝ)
84	79, 83	readdcld 11248	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (((abs‘𝐴) + (abs‘𝐶)) + (abs‘∫𝐼(𝐹 · -𝐺) d𝑥)) ∈ ℝ)
85	76, 84	eqeltrrid 2837	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → ((𝑋 + 𝑌) + (abs‘∫𝐼(𝐹 · -𝐺) d𝑥)) ∈ ℝ)
86	20	adantr 480	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝐸 ∈ ℝ)
87	21	adantr 480	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝐸 ≠ 0)
88	85, 86, 87	redivcld 12047	. . . . . 6 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (((𝑋 + 𝑌) + (abs‘∫𝐼(𝐹 · -𝐺) d𝑥)) / 𝐸) ∈ ℝ)
89		1red 11220	. . . . . 6 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 1 ∈ ℝ)
90	88, 89	readdcld 11248	. . . . 5 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → ((((𝑋 + 𝑌) + (abs‘∫𝐼(𝐹 · -𝐺) d𝑥)) / 𝐸) + 1) ∈ ℝ)
91	2, 77	eqeltrid 2836	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝑋 ∈ ℝ)
92	6, 78	eqeltrid 2836	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝑌 ∈ ℝ)
93	91, 92	readdcld 11248	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (𝑋 + 𝑌) ∈ ℝ)
94	17	adantr 480	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝑍 ∈ ℝ)
95	93, 94	readdcld 11248	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → ((𝑋 + 𝑌) + 𝑍) ∈ ℝ)
96	95, 86, 87	redivcld 12047	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (((𝑋 + 𝑌) + 𝑍) / 𝐸) ∈ ℝ)
97	96, 89	readdcld 11248	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → ((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1) ∈ ℝ)
98	97, 27	syl 17	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)) ∈ ℝ)
99	98, 89	readdcld 11248	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → ((⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)) + 1) ∈ ℝ)
100	1, 99	eqeltrid 2836	. . . . . 6 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝑀 ∈ ℝ)
101	81	abscld 15388	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → (abs‘(𝐹 · -𝐺)) ∈ ℝ)
102	81, 60	iblabs 25579	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (𝑥 ∈ 𝐼 ↦ (abs‘(𝐹 · -𝐺))) ∈ 𝐿¹)
103	101, 102	itgrecl 25548	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → ∫𝐼(abs‘(𝐹 · -𝐺)) d𝑥 ∈ ℝ)
104	81, 60	itgabs 25585	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (abs‘∫𝐼(𝐹 · -𝐺) d𝑥) ≤ ∫𝐼(abs‘(𝐹 · -𝐺)) d𝑥)
105	15	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (𝑥 ∈ 𝐼 ↦ (abs‘𝐹)) ∈ 𝐿¹)
106	61	abscld 15388	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → (abs‘𝐹) ∈ ℝ)
107	61, 80	absmuld 15406	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → (abs‘(𝐹 · -𝐺)) = ((abs‘𝐹) · (abs‘-𝐺)))
108	80	abscld 15388	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → (abs‘-𝐺) ∈ ℝ)
109		1red 11220	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → 1 ∈ ℝ)
110	61	absge0d 15396	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → 0 ≤ (abs‘𝐹))
111		recn 11204	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑟 ∈ ℝ → 𝑟 ∈ ℂ)
112	111, 66	sylan2 592	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐼) ∧ 𝑟 ∈ ℝ) → 𝐺 ∈ ℂ)
113	112	absnegd 15401	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐼) ∧ 𝑟 ∈ ℝ) → (abs‘-𝐺) = (abs‘𝐺))
114		fourierdlem47.absg	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐼) ∧ 𝑟 ∈ ℝ) → (abs‘𝐺) ≤ 1)
115	113, 114	eqbrtrd 5170	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐼) ∧ 𝑟 ∈ ℝ) → (abs‘-𝐺) ≤ 1)
116	62, 63, 64, 115	syl21anc 835	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → (abs‘-𝐺) ≤ 1)
117	108, 109, 106, 110, 116	lemul2ad 12159	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → ((abs‘𝐹) · (abs‘-𝐺)) ≤ ((abs‘𝐹) · 1))
118	106	recnd 11247	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → (abs‘𝐹) ∈ ℂ)
119	118	mulridd 11236	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → ((abs‘𝐹) · 1) = (abs‘𝐹))
120	117, 119	breqtrd 5174	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → ((abs‘𝐹) · (abs‘-𝐺)) ≤ (abs‘𝐹))
121	107, 120	eqbrtrd 5170	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) ∧ 𝑥 ∈ 𝐼) → (abs‘(𝐹 · -𝐺)) ≤ (abs‘𝐹))
122	102, 105, 101, 106, 121	itgle 25560	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → ∫𝐼(abs‘(𝐹 · -𝐺)) d𝑥 ≤ ∫𝐼(abs‘𝐹) d𝑥)
123	122, 11	breqtrrdi 5190	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → ∫𝐼(abs‘(𝐹 · -𝐺)) d𝑥 ≤ 𝑍)
124	83, 103, 94, 104, 123	letrd 11376	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (abs‘∫𝐼(𝐹 · -𝐺) d𝑥) ≤ 𝑍)
125	83, 94, 93, 124	leadd2dd 11834	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → ((𝑋 + 𝑌) + (abs‘∫𝐼(𝐹 · -𝐺) d𝑥)) ≤ ((𝑋 + 𝑌) + 𝑍))
126	85, 95, 71, 125	lediv1dd 13079	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (((𝑋 + 𝑌) + (abs‘∫𝐼(𝐹 · -𝐺) d𝑥)) / 𝐸) ≤ (((𝑋 + 𝑌) + 𝑍) / 𝐸))
127		flltp1 13770	. . . . . . . . . . 11 ⊢ ((((𝑋 + 𝑌) + 𝑍) / 𝐸) ∈ ℝ → (((𝑋 + 𝑌) + 𝑍) / 𝐸) < ((⌊‘(((𝑋 + 𝑌) + 𝑍) / 𝐸)) + 1))
128	96, 127	syl 17	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (((𝑋 + 𝑌) + 𝑍) / 𝐸) < ((⌊‘(((𝑋 + 𝑌) + 𝑍) / 𝐸)) + 1))
129	96, 45, 46	sylancl 585	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)) = ((⌊‘(((𝑋 + 𝑌) + 𝑍) / 𝐸)) + 1))
130	128, 129	breqtrrd 5176	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (((𝑋 + 𝑌) + 𝑍) / 𝐸) < (⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)))
131	88, 96, 98, 126, 130	lelttrd 11377	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (((𝑋 + 𝑌) + (abs‘∫𝐼(𝐹 · -𝐺) d𝑥)) / 𝐸) < (⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)))
132	88, 98, 89, 131	ltadd1dd 11830	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → ((((𝑋 + 𝑌) + (abs‘∫𝐼(𝐹 · -𝐺) d𝑥)) / 𝐸) + 1) < ((⌊‘((((𝑋 + 𝑌) + 𝑍) / 𝐸) + 1)) + 1))
133	132, 1	breqtrrdi 5190	. . . . . 6 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → ((((𝑋 + 𝑌) + (abs‘∫𝐼(𝐹 · -𝐺) d𝑥)) / 𝐸) + 1) < 𝑀)
134	100	rexrd 11269	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝑀 ∈ ℝ^*)
135		pnfxr 11273	. . . . . . . 8 ⊢ +∞ ∈ ℝ^*
136	135	a1i 11	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → +∞ ∈ ℝ^*)
137		simpr 484	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝑟 ∈ (𝑀(,)+∞))
138		ioogtlb 44507	. . . . . . 7 ⊢ ((𝑀 ∈ ℝ^* ∧ +∞ ∈ ℝ^* ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝑀 < 𝑟)
139	134, 136, 137, 138	syl3anc 1370	. . . . . 6 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝑀 < 𝑟)
140	90, 100, 72, 133, 139	lttrd 11380	. . . . 5 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → ((((𝑋 + 𝑌) + (abs‘∫𝐼(𝐹 · -𝐺) d𝑥)) / 𝐸) + 1) < 𝑟)
141	90, 72, 140	ltled 11367	. . . 4 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → ((((𝑋 + 𝑌) + (abs‘∫𝐼(𝐹 · -𝐺) d𝑥)) / 𝐸) + 1) ≤ 𝑟)
142	72	recnd 11247	. . . . 5 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝑟 ∈ ℂ)
143		fourierdlem47.b	. . . . 5 ⊢ ((𝜑 ∧ 𝑟 ∈ ℂ) → 𝐵 ∈ ℂ)
144	142, 143	syldan 590	. . . 4 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝐵 ∈ ℂ)
145		fourierdlem47.absb	. . . . 5 ⊢ ((𝜑 ∧ 𝑟 ∈ ℝ) → (abs‘𝐵) ≤ 1)
146	58, 145	sylan2 592	. . . 4 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (abs‘𝐵) ≤ 1)
147		fourierdlem47.d	. . . . 5 ⊢ ((𝜑 ∧ 𝑟 ∈ ℂ) → 𝐷 ∈ ℂ)
148	142, 147	syldan 590	. . . 4 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → 𝐷 ∈ ℂ)
149		fourierdlem47.absd	. . . . 5 ⊢ ((𝜑 ∧ 𝑟 ∈ ℝ) → (abs‘𝐷) ≤ 1)
150	58, 149	sylan2 592	. . . 4 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (abs‘𝐷) ≤ 1)
151	60, 61, 67, 68, 2, 69, 6, 70, 71, 72, 141, 144, 146, 148, 150	fourierdlem30 45152	. . 3 ⊢ ((𝜑 ∧ 𝑟 ∈ (𝑀(,)+∞)) → (abs‘(((𝐴 · -(𝐵 / 𝑟)) − (𝐶 · -(𝐷 / 𝑟))) − ∫𝐼(𝐹 · -(𝐺 / 𝑟)) d𝑥)) < 𝐸)
152	151	ralrimiva 3145	. 2 ⊢ (𝜑 → ∀𝑟 ∈ (𝑀(,)+∞)(abs‘(((𝐴 · -(𝐵 / 𝑟)) − (𝐶 · -(𝐷 / 𝑟))) − ∫𝐼(𝐹 · -(𝐺 / 𝑟)) d𝑥)) < 𝐸)
153		oveq1 7419	. . . 4 ⊢ (𝑚 = 𝑀 → (𝑚(,)+∞) = (𝑀(,)+∞))
154	153	raleqdv 3324	. . 3 ⊢ (𝑚 = 𝑀 → (∀𝑟 ∈ (𝑚(,)+∞)(abs‘(((𝐴 · -(𝐵 / 𝑟)) − (𝐶 · -(𝐷 / 𝑟))) − ∫𝐼(𝐹 · -(𝐺 / 𝑟)) d𝑥)) < 𝐸 ↔ ∀𝑟 ∈ (𝑀(,)+∞)(abs‘(((𝐴 · -(𝐵 / 𝑟)) − (𝐶 · -(𝐷 / 𝑟))) − ∫𝐼(𝐹 · -(𝐺 / 𝑟)) d𝑥)) < 𝐸))
155	154	rspcev 3612	. 2 ⊢ ((𝑀 ∈ ℕ ∧ ∀𝑟 ∈ (𝑀(,)+∞)(abs‘(((𝐴 · -(𝐵 / 𝑟)) − (𝐶 · -(𝐷 / 𝑟))) − ∫𝐼(𝐹 · -(𝐺 / 𝑟)) d𝑥)) < 𝐸) → ∃𝑚 ∈ ℕ ∀𝑟 ∈ (𝑚(,)+∞)(abs‘(((𝐴 · -(𝐵 / 𝑟)) − (𝐶 · -(𝐷 / 𝑟))) − ∫𝐼(𝐹 · -(𝐺 / 𝑟)) d𝑥)) < 𝐸)
156	57, 152, 155	syl2anc 583	1 ⊢ (𝜑 → ∃𝑚 ∈ ℕ ∀𝑟 ∈ (𝑚(,)+∞)(abs‘(((𝐴 · -(𝐵 / 𝑟)) − (𝐶 · -(𝐷 / 𝑟))) − ∫𝐼(𝐹 · -(𝐺 / 𝑟)) d𝑥)) < 𝐸)

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 = wceq 1540 ∈ wcel 2105 ≠ wne 2939 ∀wral 3060 ∃wrex 3069 class class class wbr 5148 ↦ cmpt 5231 ‘cfv 6543 (class class class)co 7412 ℂcc 11112 ℝcr 11113 0cc0 11114 1c1 11115 + caddc 11117 · cmul 11119 +∞cpnf 11250 ℝ^*cxr 11252 < clt 11253 ≤ cle 11254 − cmin 11449 -cneg 11450 / cdiv 11876 ℕcn 12217 ℕ₀cn0 12477 ℤcz 12563 ℝ⁺crp 12979 (,)cioo 13329 ⌊cfl 13760 abscabs 15186 𝐿¹cibl 25367 ∫citg 25368

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 1912 ax-6 1970 ax-7 2010 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2153 ax-12 2170 ax-ext 2702 ax-rep 5285 ax-sep 5299 ax-nul 5306 ax-pow 5363 ax-pr 5427 ax-un 7729 ax-inf2 9640 ax-cc 10434 ax-cnex 11170 ax-resscn 11171 ax-1cn 11172 ax-icn 11173 ax-addcl 11174 ax-addrcl 11175 ax-mulcl 11176 ax-mulrcl 11177 ax-mulcom 11178 ax-addass 11179 ax-mulass 11180 ax-distr 11181 ax-i2m1 11182 ax-1ne0 11183 ax-1rid 11184 ax-rnegex 11185 ax-rrecex 11186 ax-cnre 11187 ax-pre-lttri 11188 ax-pre-lttrn 11189 ax-pre-ltadd 11190 ax-pre-mulgt0 11191 ax-pre-sup 11192 ax-addf 11193

This theorem depends on definitions: df-bi 206 df-an 396 df-or 845 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1781 df-nf 1785 df-sb 2067 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-nel 3046 df-ral 3061 df-rex 3070 df-rmo 3375 df-reu 3376 df-rab 3432 df-v 3475 df-sbc 3778 df-csb 3894 df-dif 3951 df-un 3953 df-in 3955 df-ss 3965 df-pss 3967 df-nul 4323 df-if 4529 df-pw 4604 df-sn 4629 df-pr 4631 df-tp 4633 df-op 4635 df-uni 4909 df-int 4951 df-iun 4999 df-iin 5000 df-disj 5114 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5574 df-eprel 5580 df-po 5588 df-so 5589 df-fr 5631 df-se 5632 df-we 5633 df-xp 5682 df-rel 5683 df-cnv 5684 df-co 5685 df-dm 5686 df-rn 5687 df-res 5688 df-ima 5689 df-pred 6300 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6495 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-isom 6552 df-riota 7368 df-ov 7415 df-oprab 7416 df-mpo 7417 df-of 7674 df-ofr 7675 df-om 7860 df-1st 7979 df-2nd 7980 df-supp 8151 df-frecs 8270 df-wrecs 8301 df-recs 8375 df-rdg 8414 df-1o 8470 df-2o 8471 df-oadd 8474 df-omul 8475 df-er 8707 df-map 8826 df-pm 8827 df-ixp 8896 df-en 8944 df-dom 8945 df-sdom 8946 df-fin 8947 df-fsupp 9366 df-fi 9410 df-sup 9441 df-inf 9442 df-oi 9509 df-dju 9900 df-card 9938 df-acn 9941 df-pnf 11255 df-mnf 11256 df-xr 11257 df-ltxr 11258 df-le 11259 df-sub 11451 df-neg 11452 df-div 11877 df-nn 12218 df-2 12280 df-3 12281 df-4 12282 df-5 12283 df-6 12284 df-7 12285 df-8 12286 df-9 12287 df-n0 12478 df-z 12564 df-dec 12683 df-uz 12828 df-q 12938 df-rp 12980 df-xneg 13097 df-xadd 13098 df-xmul 13099 df-ioo 13333 df-ioc 13334 df-ico 13335 df-icc 13336 df-fz 13490 df-fzo 13633 df-fl 13762 df-mod 13840 df-seq 13972 df-exp 14033 df-hash 14296 df-cj 15051 df-re 15052 df-im 15053 df-sqrt 15187 df-abs 15188 df-clim 15437 df-rlim 15438 df-sum 15638 df-struct 17085 df-sets 17102 df-slot 17120 df-ndx 17132 df-base 17150 df-ress 17179 df-plusg 17215 df-mulr 17216 df-starv 17217 df-sca 17218 df-vsca 17219 df-ip 17220 df-tset 17221 df-ple 17222 df-ds 17224 df-unif 17225 df-hom 17226 df-cco 17227 df-rest 17373 df-topn 17374 df-0g 17392 df-gsum 17393 df-topgen 17394 df-pt 17395 df-prds 17398 df-xrs 17453 df-qtop 17458 df-imas 17459 df-xps 17461 df-mre 17535 df-mrc 17536 df-acs 17538 df-mgm 18566 df-sgrp 18645 df-mnd 18661 df-submnd 18707 df-mulg 18988 df-cntz 19223 df-cmn 19692 df-psmet 21137 df-xmet 21138 df-met 21139 df-bl 21140 df-mopn 21141 df-cnfld 21146 df-top 22617 df-topon 22634 df-topsp 22656 df-bases 22670 df-cn 22952 df-cnp 22953 df-cmp 23112 df-tx 23287 df-hmeo 23480 df-xms 24047 df-ms 24048 df-tms 24049 df-cncf 24619 df-ovol 25214 df-vol 25215 df-mbf 25369 df-itg1 25370 df-itg2 25371 df-ibl 25372 df-itg 25373 df-0p 25420

This theorem is referenced by: fourierdlem73 45194

W3C validator