fourierdlem77 - Mathbox for Glauco Siliprandi

	Mathbox for Glauco Siliprandi		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > Mathboxes > fourierdlem77		Structured version Visualization version GIF version

Theorem fourierdlem77 46203

Description: If 𝐻 is bounded, then 𝑈 is bounded. (Contributed by Glauco Siliprandi, 11-Dec-2019.)

**Hypotheses**
Ref	Expression
fourierdlem77.f	⊢ (𝜑 → 𝐹:ℝ⟶ℝ)
fourierdlem77.x	⊢ (𝜑 → 𝑋 ∈ ℝ)
fourierdlem77.y	⊢ (𝜑 → 𝑌 ∈ ℝ)
fourierdlem77.w	⊢ (𝜑 → 𝑊 ∈ ℝ)
fourierdlem77.h	⊢ 𝐻 = (𝑠 ∈ (-π[,]π) ↦ if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)))
fourierdlem77.k	⊢ 𝐾 = (𝑠 ∈ (-π[,]π) ↦ if(𝑠 = 0, 1, (𝑠 / (2 · (sin‘(𝑠 / 2))))))
fourierdlem77.u	⊢ 𝑈 = (𝑠 ∈ (-π[,]π) ↦ ((𝐻‘𝑠) · (𝐾‘𝑠)))
fourierdlem77.bd	⊢ (𝜑 → ∃𝑎 ∈ ℝ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎)

**Assertion**
Ref	Expression
fourierdlem77	⊢ (𝜑 → ∃𝑏 ∈ ℝ⁺ ∀𝑠 ∈ (-π[,]π)(abs‘(𝑈‘𝑠)) ≤ 𝑏)

Distinct variable groups: 𝐾,𝑏,𝑠 𝑈,𝑎,𝑏 𝜑,𝑎,𝑠 Allowed substitution hints: 𝜑(𝑏) 𝑈(𝑠) 𝐹(𝑠,𝑎,𝑏) 𝐻(𝑠,𝑎,𝑏) 𝐾(𝑎) 𝑊(𝑠,𝑎,𝑏) 𝑋(𝑠,𝑎,𝑏) 𝑌(𝑠,𝑎,𝑏)

Proof of Theorem fourierdlem77 Dummy variables 𝑐 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		fourierdlem77.bd	. 2 ⊢ (𝜑 → ∃𝑎 ∈ ℝ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎)
2		pire 26501	. . . . . . . . . 10 ⊢ π ∈ ℝ
3	2	renegcli 11571	. . . . . . . . 9 ⊢ -π ∈ ℝ
4	3	a1i 11	. . . . . . . 8 ⊢ (⊤ → -π ∈ ℝ)
5	2	a1i 11	. . . . . . . 8 ⊢ (⊤ → π ∈ ℝ)
6		pirp 26504	. . . . . . . . . . 11 ⊢ π ∈ ℝ⁺
7		neglt 45301	. . . . . . . . . . 11 ⊢ (π ∈ ℝ⁺ → -π < π)
8	6, 7	ax-mp 5	. . . . . . . . . 10 ⊢ -π < π
9	3, 2, 8	ltleii 11385	. . . . . . . . 9 ⊢ -π ≤ π
10	9	a1i 11	. . . . . . . 8 ⊢ (⊤ → -π ≤ π)
11		fourierdlem77.k	. . . . . . . . . 10 ⊢ 𝐾 = (𝑠 ∈ (-π[,]π) ↦ if(𝑠 = 0, 1, (𝑠 / (2 · (sin‘(𝑠 / 2))))))
12	11	fourierdlem62 46188	. . . . . . . . 9 ⊢ 𝐾 ∈ ((-π[,]π)–cn→ℝ)
13	12	a1i 11	. . . . . . . 8 ⊢ (⊤ → 𝐾 ∈ ((-π[,]π)–cn→ℝ))
14	4, 5, 10, 13	evthiccabs 45514	. . . . . . 7 ⊢ (⊤ → (∃𝑐 ∈ (-π[,]π)∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐)) ∧ ∃𝑥 ∈ (-π[,]π)∀𝑦 ∈ (-π[,]π)(abs‘(𝐾‘𝑥)) ≤ (abs‘(𝐾‘𝑦))))
15	14	mptru 1546	. . . . . 6 ⊢ (∃𝑐 ∈ (-π[,]π)∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐)) ∧ ∃𝑥 ∈ (-π[,]π)∀𝑦 ∈ (-π[,]π)(abs‘(𝐾‘𝑥)) ≤ (abs‘(𝐾‘𝑦)))
16	15	simpli 483	. . . . 5 ⊢ ∃𝑐 ∈ (-π[,]π)∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))
17	16	a1i 11	. . . 4 ⊢ ((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) → ∃𝑐 ∈ (-π[,]π)∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐)))
18		simpl 482	. . . . . . . . . . . 12 ⊢ ((𝑎 ∈ ℝ ∧ 𝑐 ∈ (-π[,]π)) → 𝑎 ∈ ℝ)
19	11	fourierdlem43 46170	. . . . . . . . . . . . . 14 ⊢ 𝐾:(-π[,]π)⟶ℝ
20	19	ffvelcdmi 7102	. . . . . . . . . . . . 13 ⊢ (𝑐 ∈ (-π[,]π) → (𝐾‘𝑐) ∈ ℝ)
21	20	adantl 481	. . . . . . . . . . . 12 ⊢ ((𝑎 ∈ ℝ ∧ 𝑐 ∈ (-π[,]π)) → (𝐾‘𝑐) ∈ ℝ)
22	18, 21	remulcld 11292	. . . . . . . . . . 11 ⊢ ((𝑎 ∈ ℝ ∧ 𝑐 ∈ (-π[,]π)) → (𝑎 · (𝐾‘𝑐)) ∈ ℝ)
23	22	recnd 11290	. . . . . . . . . 10 ⊢ ((𝑎 ∈ ℝ ∧ 𝑐 ∈ (-π[,]π)) → (𝑎 · (𝐾‘𝑐)) ∈ ℂ)
24	23	abscld 15476	. . . . . . . . 9 ⊢ ((𝑎 ∈ ℝ ∧ 𝑐 ∈ (-π[,]π)) → (abs‘(𝑎 · (𝐾‘𝑐))) ∈ ℝ)
25	23	absge0d 15484	. . . . . . . . 9 ⊢ ((𝑎 ∈ ℝ ∧ 𝑐 ∈ (-π[,]π)) → 0 ≤ (abs‘(𝑎 · (𝐾‘𝑐))))
26	24, 25	ge0p1rpd 13108	. . . . . . . 8 ⊢ ((𝑎 ∈ ℝ ∧ 𝑐 ∈ (-π[,]π)) → ((abs‘(𝑎 · (𝐾‘𝑐))) + 1) ∈ ℝ⁺)
27	26	3ad2antl2 1186	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) → ((abs‘(𝑎 · (𝐾‘𝑐))) + 1) ∈ ℝ⁺)
28	27	3adant3 1132	. . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π) ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) → ((abs‘(𝑎 · (𝐾‘𝑐))) + 1) ∈ ℝ⁺)
29		nfv 1913	. . . . . . . . 9 ⊢ Ⅎ𝑠𝜑
30		nfv 1913	. . . . . . . . 9 ⊢ Ⅎ𝑠 𝑎 ∈ ℝ
31		nfra1 3283	. . . . . . . . 9 ⊢ Ⅎ𝑠∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎
32	29, 30, 31	nf3an 1900	. . . . . . . 8 ⊢ Ⅎ𝑠(𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎)
33		nfv 1913	. . . . . . . 8 ⊢ Ⅎ𝑠 𝑐 ∈ (-π[,]π)
34		nfra1 3283	. . . . . . . 8 ⊢ Ⅎ𝑠∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))
35	32, 33, 34	nf3an 1900	. . . . . . 7 ⊢ Ⅎ𝑠((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π) ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐)))
36		simpl11 1248	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π) ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → 𝜑)
37		simpl12 1249	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π) ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → 𝑎 ∈ ℝ)
38	36, 37	jca 511	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π) ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (𝜑 ∧ 𝑎 ∈ ℝ))
39		simpl13 1250	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π) ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎)
40		rspa 3247	. . . . . . . . . . 11 ⊢ ((∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎 ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝐻‘𝑠)) ≤ 𝑎)
41	39, 40	sylancom 588	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π) ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝐻‘𝑠)) ≤ 𝑎)
42		simpl2 1192	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π) ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → 𝑐 ∈ (-π[,]π))
43	38, 41, 42	jca31 514	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π) ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)))
44		rspa 3247	. . . . . . . . . 10 ⊢ ((∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐)) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐)))
45	44	3ad2antl3 1187	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π) ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐)))
46		simpr 484	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π) ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → 𝑠 ∈ (-π[,]π))
47		simp-5l 784	. . . . . . . . . . 11 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → 𝜑)
48		simpr 484	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑠 ∈ (-π[,]π)) → 𝑠 ∈ (-π[,]π))
49		fourierdlem77.f	. . . . . . . . . . . . . . . . . 18 ⊢ (𝜑 → 𝐹:ℝ⟶ℝ)
50		fourierdlem77.x	. . . . . . . . . . . . . . . . . 18 ⊢ (𝜑 → 𝑋 ∈ ℝ)
51		fourierdlem77.y	. . . . . . . . . . . . . . . . . 18 ⊢ (𝜑 → 𝑌 ∈ ℝ)
52		fourierdlem77.w	. . . . . . . . . . . . . . . . . 18 ⊢ (𝜑 → 𝑊 ∈ ℝ)
53		fourierdlem77.h	. . . . . . . . . . . . . . . . . 18 ⊢ 𝐻 = (𝑠 ∈ (-π[,]π) ↦ if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)))
54	49, 50, 51, 52, 53	fourierdlem9 46136	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → 𝐻:(-π[,]π)⟶ℝ)
55	54	ffvelcdmda 7103	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑠 ∈ (-π[,]π)) → (𝐻‘𝑠) ∈ ℝ)
56	19	ffvelcdmi 7102	. . . . . . . . . . . . . . . . 17 ⊢ (𝑠 ∈ (-π[,]π) → (𝐾‘𝑠) ∈ ℝ)
57	56	adantl 481	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑠 ∈ (-π[,]π)) → (𝐾‘𝑠) ∈ ℝ)
58	55, 57	remulcld 11292	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑠 ∈ (-π[,]π)) → ((𝐻‘𝑠) · (𝐾‘𝑠)) ∈ ℝ)
59		fourierdlem77.u	. . . . . . . . . . . . . . . 16 ⊢ 𝑈 = (𝑠 ∈ (-π[,]π) ↦ ((𝐻‘𝑠) · (𝐾‘𝑠)))
60	59	fvmpt2 7026	. . . . . . . . . . . . . . 15 ⊢ ((𝑠 ∈ (-π[,]π) ∧ ((𝐻‘𝑠) · (𝐾‘𝑠)) ∈ ℝ) → (𝑈‘𝑠) = ((𝐻‘𝑠) · (𝐾‘𝑠)))
61	48, 58, 60	syl2anc 584	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑠 ∈ (-π[,]π)) → (𝑈‘𝑠) = ((𝐻‘𝑠) · (𝐾‘𝑠)))
62	61, 58	eqeltrd 2840	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑠 ∈ (-π[,]π)) → (𝑈‘𝑠) ∈ ℝ)
63	62	recnd 11290	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑠 ∈ (-π[,]π)) → (𝑈‘𝑠) ∈ ℂ)
64	63	abscld 15476	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝑈‘𝑠)) ∈ ℝ)
65	47, 64	sylancom 588	. . . . . . . . . 10 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝑈‘𝑠)) ∈ ℝ)
66		simp-5r 785	. . . . . . . . . . . 12 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → 𝑎 ∈ ℝ)
67		simpllr 775	. . . . . . . . . . . 12 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → 𝑐 ∈ (-π[,]π))
68	66, 67, 24	syl2anc 584	. . . . . . . . . . 11 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝑎 · (𝐾‘𝑐))) ∈ ℝ)
69		peano2re 11435	. . . . . . . . . . 11 ⊢ ((abs‘(𝑎 · (𝐾‘𝑐))) ∈ ℝ → ((abs‘(𝑎 · (𝐾‘𝑐))) + 1) ∈ ℝ)
70	68, 69	syl 17	. . . . . . . . . 10 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → ((abs‘(𝑎 · (𝐾‘𝑐))) + 1) ∈ ℝ)
71	61	fveq2d 6909	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝑈‘𝑠)) = (abs‘((𝐻‘𝑠) · (𝐾‘𝑠))))
72	47, 71	sylancom 588	. . . . . . . . . . . 12 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝑈‘𝑠)) = (abs‘((𝐻‘𝑠) · (𝐾‘𝑠))))
73	55	recnd 11290	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑠 ∈ (-π[,]π)) → (𝐻‘𝑠) ∈ ℂ)
74	73	abscld 15476	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝐻‘𝑠)) ∈ ℝ)
75	47, 74	sylancom 588	. . . . . . . . . . . . . 14 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝐻‘𝑠)) ∈ ℝ)
76		recn 11246	. . . . . . . . . . . . . . . 16 ⊢ (𝑎 ∈ ℝ → 𝑎 ∈ ℂ)
77	76	abscld 15476	. . . . . . . . . . . . . . 15 ⊢ (𝑎 ∈ ℝ → (abs‘𝑎) ∈ ℝ)
78	66, 77	syl 17	. . . . . . . . . . . . . 14 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘𝑎) ∈ ℝ)
79	56	recnd 11290	. . . . . . . . . . . . . . . 16 ⊢ (𝑠 ∈ (-π[,]π) → (𝐾‘𝑠) ∈ ℂ)
80	79	abscld 15476	. . . . . . . . . . . . . . 15 ⊢ (𝑠 ∈ (-π[,]π) → (abs‘(𝐾‘𝑠)) ∈ ℝ)
81	80	adantl 481	. . . . . . . . . . . . . 14 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝐾‘𝑠)) ∈ ℝ)
82	20	recnd 11290	. . . . . . . . . . . . . . . 16 ⊢ (𝑐 ∈ (-π[,]π) → (𝐾‘𝑐) ∈ ℂ)
83	82	abscld 15476	. . . . . . . . . . . . . . 15 ⊢ (𝑐 ∈ (-π[,]π) → (abs‘(𝐾‘𝑐)) ∈ ℝ)
84	67, 83	syl 17	. . . . . . . . . . . . . 14 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝐾‘𝑐)) ∈ ℝ)
85	73	absge0d 15484	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑠 ∈ (-π[,]π)) → 0 ≤ (abs‘(𝐻‘𝑠)))
86	47, 85	sylancom 588	. . . . . . . . . . . . . 14 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → 0 ≤ (abs‘(𝐻‘𝑠)))
87	82	absge0d 15484	. . . . . . . . . . . . . . 15 ⊢ (𝑐 ∈ (-π[,]π) → 0 ≤ (abs‘(𝐾‘𝑐)))
88	67, 87	syl 17	. . . . . . . . . . . . . 14 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → 0 ≤ (abs‘(𝐾‘𝑐)))
89	74	ad4ant14 752	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝐻‘𝑠)) ∈ ℝ)
90		simpllr 775	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑠 ∈ (-π[,]π)) → 𝑎 ∈ ℝ)
91	77	ad3antlr 731	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘𝑎) ∈ ℝ)
92		simplr 768	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝐻‘𝑠)) ≤ 𝑎)
93	90	leabsd 15454	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑠 ∈ (-π[,]π)) → 𝑎 ≤ (abs‘𝑎))
94	89, 90, 91, 92, 93	letrd 11419	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝐻‘𝑠)) ≤ (abs‘𝑎))
95	94	ad4ant14 752	. . . . . . . . . . . . . 14 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝐻‘𝑠)) ≤ (abs‘𝑎))
96		simplr 768	. . . . . . . . . . . . . 14 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐)))
97	75, 78, 81, 84, 86, 88, 95, 96	lemul12bd 12212	. . . . . . . . . . . . 13 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → ((abs‘(𝐻‘𝑠)) · (abs‘(𝐾‘𝑠))) ≤ ((abs‘𝑎) · (abs‘(𝐾‘𝑐))))
98	57	recnd 11290	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑠 ∈ (-π[,]π)) → (𝐾‘𝑠) ∈ ℂ)
99	73, 98	absmuld 15494	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑠 ∈ (-π[,]π)) → (abs‘((𝐻‘𝑠) · (𝐾‘𝑠))) = ((abs‘(𝐻‘𝑠)) · (abs‘(𝐾‘𝑠))))
100	47, 99	sylancom 588	. . . . . . . . . . . . 13 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘((𝐻‘𝑠) · (𝐾‘𝑠))) = ((abs‘(𝐻‘𝑠)) · (abs‘(𝐾‘𝑠))))
101	76	adantr 480	. . . . . . . . . . . . . . 15 ⊢ ((𝑎 ∈ ℝ ∧ 𝑐 ∈ (-π[,]π)) → 𝑎 ∈ ℂ)
102	21	recnd 11290	. . . . . . . . . . . . . . 15 ⊢ ((𝑎 ∈ ℝ ∧ 𝑐 ∈ (-π[,]π)) → (𝐾‘𝑐) ∈ ℂ)
103	101, 102	absmuld 15494	. . . . . . . . . . . . . 14 ⊢ ((𝑎 ∈ ℝ ∧ 𝑐 ∈ (-π[,]π)) → (abs‘(𝑎 · (𝐾‘𝑐))) = ((abs‘𝑎) · (abs‘(𝐾‘𝑐))))
104	66, 67, 103	syl2anc 584	. . . . . . . . . . . . 13 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝑎 · (𝐾‘𝑐))) = ((abs‘𝑎) · (abs‘(𝐾‘𝑐))))
105	97, 100, 104	3brtr4d 5174	. . . . . . . . . . . 12 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘((𝐻‘𝑠) · (𝐾‘𝑠))) ≤ (abs‘(𝑎 · (𝐾‘𝑐))))
106	72, 105	eqbrtrd 5164	. . . . . . . . . . 11 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝑈‘𝑠)) ≤ (abs‘(𝑎 · (𝐾‘𝑐))))
107	68	ltp1d 12199	. . . . . . . . . . 11 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝑎 · (𝐾‘𝑐))) < ((abs‘(𝑎 · (𝐾‘𝑐))) + 1))
108	65, 68, 70, 106, 107	lelttrd 11420	. . . . . . . . . 10 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝑈‘𝑠)) < ((abs‘(𝑎 · (𝐾‘𝑐))) + 1))
109	65, 70, 108	ltled 11410	. . . . . . . . 9 ⊢ ((((((𝜑 ∧ 𝑎 ∈ ℝ) ∧ (abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π)) ∧ (abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝑈‘𝑠)) ≤ ((abs‘(𝑎 · (𝐾‘𝑐))) + 1))
110	43, 45, 46, 109	syl21anc 837	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π) ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) ∧ 𝑠 ∈ (-π[,]π)) → (abs‘(𝑈‘𝑠)) ≤ ((abs‘(𝑎 · (𝐾‘𝑐))) + 1))
111	110	ex 412	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π) ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) → (𝑠 ∈ (-π[,]π) → (abs‘(𝑈‘𝑠)) ≤ ((abs‘(𝑎 · (𝐾‘𝑐))) + 1)))
112	35, 111	ralrimi 3256	. . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π) ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) → ∀𝑠 ∈ (-π[,]π)(abs‘(𝑈‘𝑠)) ≤ ((abs‘(𝑎 · (𝐾‘𝑐))) + 1))
113		breq2 5146	. . . . . . . 8 ⊢ (𝑏 = ((abs‘(𝑎 · (𝐾‘𝑐))) + 1) → ((abs‘(𝑈‘𝑠)) ≤ 𝑏 ↔ (abs‘(𝑈‘𝑠)) ≤ ((abs‘(𝑎 · (𝐾‘𝑐))) + 1)))
114	113	ralbidv 3177	. . . . . . 7 ⊢ (𝑏 = ((abs‘(𝑎 · (𝐾‘𝑐))) + 1) → (∀𝑠 ∈ (-π[,]π)(abs‘(𝑈‘𝑠)) ≤ 𝑏 ↔ ∀𝑠 ∈ (-π[,]π)(abs‘(𝑈‘𝑠)) ≤ ((abs‘(𝑎 · (𝐾‘𝑐))) + 1)))
115	114	rspcev 3621	. . . . . 6 ⊢ ((((abs‘(𝑎 · (𝐾‘𝑐))) + 1) ∈ ℝ⁺ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝑈‘𝑠)) ≤ ((abs‘(𝑎 · (𝐾‘𝑐))) + 1)) → ∃𝑏 ∈ ℝ⁺ ∀𝑠 ∈ (-π[,]π)(abs‘(𝑈‘𝑠)) ≤ 𝑏)
116	28, 112, 115	syl2anc 584	. . . . 5 ⊢ (((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) ∧ 𝑐 ∈ (-π[,]π) ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐))) → ∃𝑏 ∈ ℝ⁺ ∀𝑠 ∈ (-π[,]π)(abs‘(𝑈‘𝑠)) ≤ 𝑏)
117	116	rexlimdv3a 3158	. . . 4 ⊢ ((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) → (∃𝑐 ∈ (-π[,]π)∀𝑠 ∈ (-π[,]π)(abs‘(𝐾‘𝑠)) ≤ (abs‘(𝐾‘𝑐)) → ∃𝑏 ∈ ℝ⁺ ∀𝑠 ∈ (-π[,]π)(abs‘(𝑈‘𝑠)) ≤ 𝑏))
118	17, 117	mpd 15	. . 3 ⊢ ((𝜑 ∧ 𝑎 ∈ ℝ ∧ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎) → ∃𝑏 ∈ ℝ⁺ ∀𝑠 ∈ (-π[,]π)(abs‘(𝑈‘𝑠)) ≤ 𝑏)
119	118	rexlimdv3a 3158	. 2 ⊢ (𝜑 → (∃𝑎 ∈ ℝ ∀𝑠 ∈ (-π[,]π)(abs‘(𝐻‘𝑠)) ≤ 𝑎 → ∃𝑏 ∈ ℝ⁺ ∀𝑠 ∈ (-π[,]π)(abs‘(𝑈‘𝑠)) ≤ 𝑏))
120	1, 119	mpd 15	1 ⊢ (𝜑 → ∃𝑏 ∈ ℝ⁺ ∀𝑠 ∈ (-π[,]π)(abs‘(𝑈‘𝑠)) ≤ 𝑏)

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1086 = wceq 1539 ⊤wtru 1540 ∈ wcel 2107 ∀wral 3060 ∃wrex 3069 ifcif 4524 class class class wbr 5142 ↦ cmpt 5224 ⟶wf 6556 ‘cfv 6560 (class class class)co 7432 ℂcc 11154 ℝcr 11155 0cc0 11156 1c1 11157 + caddc 11159 · cmul 11161 < clt 11296 ≤ cle 11297 − cmin 11493 -cneg 11494 / cdiv 11921 2c2 12322 ℝ⁺crp 13035 [,]cicc 13391 abscabs 15274 sincsin 16100 πcpi 16103 –cn→ccncf 24903

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1794 ax-4 1808 ax-5 1909 ax-6 1966 ax-7 2006 ax-8 2109 ax-9 2117 ax-10 2140 ax-11 2156 ax-12 2176 ax-ext 2707 ax-rep 5278 ax-sep 5295 ax-nul 5305 ax-pow 5364 ax-pr 5431 ax-un 7756 ax-inf2 9682 ax-cnex 11212 ax-resscn 11213 ax-1cn 11214 ax-icn 11215 ax-addcl 11216 ax-addrcl 11217 ax-mulcl 11218 ax-mulrcl 11219 ax-mulcom 11220 ax-addass 11221 ax-mulass 11222 ax-distr 11223 ax-i2m1 11224 ax-1ne0 11225 ax-1rid 11226 ax-rnegex 11227 ax-rrecex 11228 ax-cnre 11229 ax-pre-lttri 11230 ax-pre-lttrn 11231 ax-pre-ltadd 11232 ax-pre-mulgt0 11233 ax-pre-sup 11234 ax-addf 11235

This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1779 df-nf 1783 df-sb 2064 df-mo 2539 df-eu 2568 df-clab 2714 df-cleq 2728 df-clel 2815 df-nfc 2891 df-ne 2940 df-nel 3046 df-ral 3061 df-rex 3070 df-rmo 3379 df-reu 3380 df-rab 3436 df-v 3481 df-sbc 3788 df-csb 3899 df-dif 3953 df-un 3955 df-in 3957 df-ss 3967 df-pss 3970 df-nul 4333 df-if 4525 df-pw 4601 df-sn 4626 df-pr 4628 df-tp 4630 df-op 4632 df-uni 4907 df-int 4946 df-iun 4992 df-iin 4993 df-br 5143 df-opab 5205 df-mpt 5225 df-tr 5259 df-id 5577 df-eprel 5583 df-po 5591 df-so 5592 df-fr 5636 df-se 5637 df-we 5638 df-xp 5690 df-rel 5691 df-cnv 5692 df-co 5693 df-dm 5694 df-rn 5695 df-res 5696 df-ima 5697 df-pred 6320 df-ord 6386 df-on 6387 df-lim 6388 df-suc 6389 df-iota 6513 df-fun 6562 df-fn 6563 df-f 6564 df-f1 6565 df-fo 6566 df-f1o 6567 df-fv 6568 df-isom 6569 df-riota 7389 df-ov 7435 df-oprab 7436 df-mpo 7437 df-of 7698 df-om 7889 df-1st 8015 df-2nd 8016 df-supp 8187 df-frecs 8307 df-wrecs 8338 df-recs 8412 df-rdg 8451 df-1o 8507 df-2o 8508 df-er 8746 df-map 8869 df-pm 8870 df-ixp 8939 df-en 8987 df-dom 8988 df-sdom 8989 df-fin 8990 df-fsupp 9403 df-fi 9452 df-sup 9483 df-inf 9484 df-oi 9551 df-card 9980 df-pnf 11298 df-mnf 11299 df-xr 11300 df-ltxr 11301 df-le 11302 df-sub 11495 df-neg 11496 df-div 11922 df-nn 12268 df-2 12330 df-3 12331 df-4 12332 df-5 12333 df-6 12334 df-7 12335 df-8 12336 df-9 12337 df-n0 12529 df-z 12616 df-dec 12736 df-uz 12880 df-q 12992 df-rp 13036 df-xneg 13155 df-xadd 13156 df-xmul 13157 df-ioo 13392 df-ioc 13393 df-ico 13394 df-icc 13395 df-fz 13549 df-fzo 13696 df-fl 13833 df-mod 13911 df-seq 14044 df-exp 14104 df-fac 14314 df-bc 14343 df-hash 14371 df-shft 15107 df-cj 15139 df-re 15140 df-im 15141 df-sqrt 15275 df-abs 15276 df-limsup 15508 df-clim 15525 df-rlim 15526 df-sum 15724 df-ef 16104 df-sin 16106 df-cos 16107 df-pi 16109 df-struct 17185 df-sets 17202 df-slot 17220 df-ndx 17232 df-base 17249 df-ress 17276 df-plusg 17311 df-mulr 17312 df-starv 17313 df-sca 17314 df-vsca 17315 df-ip 17316 df-tset 17317 df-ple 17318 df-ds 17320 df-unif 17321 df-hom 17322 df-cco 17323 df-rest 17468 df-topn 17469 df-0g 17487 df-gsum 17488 df-topgen 17489 df-pt 17490 df-prds 17493 df-xrs 17548 df-qtop 17553 df-imas 17554 df-xps 17556 df-mre 17630 df-mrc 17631 df-acs 17633 df-mgm 18654 df-sgrp 18733 df-mnd 18749 df-submnd 18798 df-mulg 19087 df-cntz 19336 df-cmn 19801 df-psmet 21357 df-xmet 21358 df-met 21359 df-bl 21360 df-mopn 21361 df-fbas 21362 df-fg 21363 df-cnfld 21366 df-top 22901 df-topon 22918 df-topsp 22940 df-bases 22954 df-cld 23028 df-ntr 23029 df-cls 23030 df-nei 23107 df-lp 23145 df-perf 23146 df-cn 23236 df-cnp 23237 df-t1 23323 df-haus 23324 df-cmp 23396 df-tx 23571 df-hmeo 23764 df-fil 23855 df-fm 23947 df-flim 23948 df-flf 23949 df-xms 24331 df-ms 24332 df-tms 24333 df-cncf 24905 df-limc 25902 df-dv 25903

This theorem is referenced by: fourierdlem87 46213

W3C validator